Pages 1--514 from Untitled

AIRPORT SYSTEM MASTER PLAN FOR JOHN WAYNE AIRPORT AND
PROPOSED ORANGE COUNTY INTERNATIONAL AIRPORT
SCH NO 98101053

EIR TEXT VOLUME 1
December 1999
Prepared for
COUNTY OF ORANGE MCAS El Toro Local Redevelopment Authority
10 Civic Center Plaza
Santa Ana California 92701 7 1 4 834 3000

Contact Bryan Speegle
Prepared by
LSA ASSOCIATES P D CONSULTANTS 1
1 Page 2 3
TABLE OF CONTENTS
DRAFT ENVIRONMENTAL IMPACT REPORT NO 573 FOR THE CIVILIAN REUSE OF MCAS EL TORO
AND THE AIRPORT SYSTEM MASTER PLAN FOR THE JOHN WAYNE AIRPORT AND PROPOSED
ORANGE COUNTY INTERNATIONAL AIRPORT
VOLUME 1
LIST OF ACRONYMS LOA 1

1 l u SUMMARY AND INTRODUCTION l 11 1.1

1 .2

1 .3 1 .4
1 .5 1 .6

1 .7 1 .8
1 .9

General Introduction l l 1.1.1 Proposed Project l l
History And Background l 2 1.2.1 MCAS El Toro l 2
1.2.2 John Wayne Airport l 3 Relationship to EIR No 563 l 3
Areas Of Controversy 1 5 Issues to be Resolved l 6
Environmental Setting Existing Conditions l 6 1.6.1 No Project Alternative l 7
Organization of the EIR l 7 Referenced Documents and Availability of Studies and Reports l 8
Summary of Significant Effects of the Proposed Project and Mitigation Measures and Alternatives that will Reduce or Avoid that Effect 1 10
1 .9 .1 Land Use l 10 1.9.2 General Plan Consistency l 11
1 .9 .3 Transportation and Circulation l l 1 1.9.4 Noise 1 12
1.9 5 Air Quality 1 13 1.9.6 Soils Geology and Seismicity 1 15
1.9.7 Hydrology and Water Quality 1 15 1.9.8 Public Services and Utilities 1 16
1.9.9 Natural Resources and Energy 1 17 1.9.10 Recreation 1 18
1.9.11 Hazardous Wastes and Hazardous Materials Use 1 19 1.9.12 Socioeconomics 1 20
1 9 13 Risk of Upset 1 21

County of Orange EIR No 573 i Table of Contents 2
2 Page 3 4
1.9.14 Summary Of Cumulative Effects Of The Proposed Project And
Mitigation Measures That Would Lessen Or Avoid That Effect l 2 1
1 9 15 Level of Significance After Mitigation l 23

2 .0 PROJECT HISTORY AND SUMMARY OF THE PROPOSED
PROJECT .2 .2 l 2.1

2.2
2.3

2.4
2.5

Project Background 2 1 2.1.1 History
Of the El Toro Military Base Closure Process 2.1 2.1.2 MCAS EL Toro Community Reuse Plan CRP And Final EIR 563.2 2

2.1.3 Litigation Regarding Final EIR 563 and the Courts Judgments .2 4
2.1.4 Transition From CRP to ASMP and Open Space Plan 2 5
Project Purpose and Need 2 6
2.2.1 Aviation Demand 2 7 2.2.2 Other Purpose and Need Factors 2 9

Project Objectives 2 l 1
2.3.1 General Project Objectives 2 11
2.3.2 Aviation Related Planning Objectives 2 12
2.3.3 Ability Of The Proposed Project And Alternatives To Satisfy The Project Objectives 2 13

Public Coordination and Participation 2 14 2.4.1 Notice of Preparation 2 14
2.4.2 Public Scoping Meeting 2 15
2.4.3 Distribution of the Draft EIR 2 15
Relationship to Federal Environmental Processes 2 15

3.0 DESCRIPTION OF THE PROPOSED PROJECT 3 1 3 .1 Introduction and Project Summary 3 1
3.1.1 Airport System Master Plan 3 3 3.1.2 Base Transition Plan 3 5

3.2 Project Location 3 5
3 .3 P r o j e c t Overview 3 5
3.3.1 OCX Proposed Aviation Facility Improvements 3 6
3.3.2 Nonaviation Revenue Support Uses 3 16
3.3.3 Base Transition Plan 3 26 3.3.4 Interim Aviation Uses 3 27

3.3.5 JWA Facility Improvements for the Proposed Project 3.27
3.3.6 Proposed Aviation Activity for the Two Airport System .3 32 3.4 Summary of CRP Project Addressed in EIR No 563 3 35

3.4.1 Comparison of Proposed Project with the Community Reuse Plan 3 35
3.5 Phasing 3 40 3.5.1 Phase 1 2000 2005 3 58

3.5.2 Phase 2 2 0 06-2 01 0 3 63 3.5.3 Phase 3 2011 2015 3 65
3.5.4 Phase 4 2016 2020 3 65

Table of Contents ii County of Orange EIR No 573 3
3 Page 4 5
3.6 Summary of Proposed Actions 3 66
3.6.1 County Implementing Actions and Discretionary Approvals 3 66
3.7 Intended Uses of the EIR 3 67
3.7.1 Approvals For Which The EIR Will Be Used 3 67

4.0 ENVIRONMENTAL SETTING IMPACTS AND MITIGATION MEASURES 4 1
Introduction Organization and Content 4 l
4.1 Land Use l l 4.1 l

4.2
4.3

4.1 .1 Summary of Conclusions in Final EIR No 563 4.1 l 4.1.2 Final EIR No 563 Supplemental Analysis 4.1 2
4.1.3 Environmental Setting Existing Conditions 4.1 2 4.1.4 Methodology 4.1 7
4.1.5 Thresholds of Significance 4.1 7
4.1.6 Project Impacts 4.1 8
4.1.7 Mitigation Measures 4.1 28
4.1.8 Level of Significance After Mitigation 4.1 30
4.1.9 No Project No Activity Comparison 4.1 31

General Plan Consistency 4.2 l 4 2 1 Summary of Conclusions in EIR No 563 4.2 l
4.2.2 Final EIR No 563 Supplemental Analysis 4.2 2
4.2.3 Environmental Setting Existing Conditions 4.2 2
4.2.4 Methodology 4.2 l 1
4.2.5 Thresholds of Significance 4.2 l 1
4.2.6 Project Impacts 4.2 l 1
4.2.7 Mitigation Measures 4.2 l 8
4.2.8 Level of Significance After Mitigation 4.2 20
4.2.9 No Project No Activity Comparison 4 2 20

Transportation And Circulation 4.3 l 4.3.1 Summary of Conclusions in Final EIR No 563 4.3 l
4.3.2 Final EIR No 563 Supplemental Analysis 4.3 2
4.3.3 Environmental Setting Existing Conditions 4.3 3
4.3.4 Methodology 4.3 a
4.3.5 Thresholds of Significance 4.3 l 1
4.3.6 Project Impacts 4.3 l 5
4.3.7 Mitigation Measures 4.3 43
4.3.8 Level of Significance After Mitigation 4.3 52
4.3.9 No Project No Activity Comparison 4.3 52

County of Orange EIR No 573 Table of Contents 4
4 Page 5 6
4.4 Noise 4.4 1 4 .4 .1 Summary of Conclusions in Final EIR No 563 4.4 l
4.4.2 Final EIR NO 563 Supplemental Analysis 4.4 2 4.4.3 Environmental Setting Existing Conditions 4.4 2
4.4.4 Methodology 4.4 45 4.4.5 Regulatory Setting 4.4 46
4.4.6 Project Impacts 4.4 56 4.4 7 Potential Mitigation Approaches 4.4 141
4.4.8 Mitigation Measures 4.4 l 78 4.4.9 Level of Significance After Mitigation 4.4 l 83
4.4.10 No Project No Activity Comparison 4.4 l 84
4.5 Air Quality 4.5 1 4.5 1 Summary of Conclusions in EIR No 563 4.5 2 1
4.5.2 Summary of Conclusions in Final EIR No 563 Supplemental Analysis 4.5 2
4.5.3 Summary of Conclusions in EIR No 573 4.5 4 4.5.4 Environmental Setting Existing Conditions 4.5 6
4.5.5 Methodology 4.5 36 4.5.6 Thresholds of Significance 4.5 36
4.5.7 Project Impacts 4.5 40 4.5.8 Mitigation Measures 4.5 75
4.5.9 No Project No Activity Comparison 4.5 86 4.5.10 Level of Significance After Mitigation 4.5 87
4.5.11 Air Toxics 4.5 87

VOLUME 2A
4.6 Landform And Topography 4.6 1 1 4.6.1 Summary of Conclusions in Final EIR No 563 4 6 2 1
4.6.2 Final EIR No 563 Supplemental Analysis 4.6 2 4.6.3 Environmental Setting Existing Conditions 4.6 2
4.6.4 Methodology 4.6 3 4.6.5 Thresholds of Significance 4.6 3
4.6.6 Project Impacts 4.6 4 4.6.7 Mitigation Measures 4.6 7
4.6.8 Level of Significance After Mitigation 4.6 8 4.6.9 No Project No Activity Comparison 4.6 8

4.7 Soils Geology And Seismicity 4.7 l 4.7.1 Summary of Conclusions in Final EIR No 563 4.7 l
4.7.2 Final EIR No 563 Supplemental Analysis 4.7 2 4.7.3 Environmental Setting Existing Conditions 4.7 2
4.7.4 Methodology 4.7 12

Table of Contents iv County of Orange EIR No 573 5
5 Page 6 7
4.7 5 Thresholds of Significance 4.7 12
4.7.6 Project Impacts 4.7 12
4.7.7 Mitigation Measures 4.7 16
4.7.8 Level of Significance After Mitigation 4.7 18
4.7.9 No Project No Activity Comparison 4.7 18

4.8 Hydrology and Water Quality 4.8 l 4.8.1 Summary of Conclusions in Final EIR No 563 4.8 l
4.8.2 Final EIR No 563 Supplemental Analysis 4.8 2
4.8.3 Environmental Setting Existing Conditions 4.8 2
4.8.4 Methodology Related to Hydrology and Water Quality 4.8 15
4.8.5 Thresholds of Significance 4.8 16
4.8.6 Project Impacts 4.8 16
4.8.7 Mitigation Measures 4.8 27
4.8.8 Level of Significance After Mitigation 4.8 34
4.8.9 No Project No Activity Comparison 4.8 34

4.9 Biological Resources 4.9 l 4.9.1 Summary of Conclusions in EIR No 563 4.9 l
4.9.2 Final EIR No 563 Supplemental Analysis 4.9 2
4.9.3 Environmental Setting Existing Conditions 4.9 2
4.9.4 Methodology 4.9 23
4.9.5 Thresholds of Significance 4.9 24
4.9.6 Project Impacts 4.9 27 4.9.7 Mitigation Measures 4.9 52

4.9.8 Level of Significance After Mitigation 4.9 56
4.9.9 No Project No Activity Comparison 4.9 57

4.10 Public Services And Utilities 4.10 l 4.10.1 Summary of Conclusions of Final EIR No 563 4.10 l
4.10.2 Final EIR No 563 Supplemental Analysis 4.10 4
4.10.3 Environmental Setting Existing Conditions 4.10 4
4.10.4 Methodology 4.10 l 8
4.10 4 Thresholds of Significance 4.10 18
4.10.6 Proposed Transit Serving Improvements MCAS El Toro 4 10 20 4.10 7 Project Impacts 4.10 20

4.10.8 Phasing and Base Transition Plan 4.10 48
4.10.9 Mitigation Measures 4.10 48 4.10 10 Level of Significance After Mitigation 4.10 53

4.10 11 No Project No Activity Comparison 4.10 54
4.11 Natural Resources and Energy 4.11 l
4.11 .1 Summary of Conclusions in EIR No 563 4.11 l 4.11.2
Effects Determined to be Mitigated to Below a Level of Significance 4.1 l 2

County of Orange EIR No 573 v Table of Contents 6
6 Page 7 8
4.12
4.11.3 Final EIR No 563 Supplemental Analysis 4.11 2 4.11 4 Environmental Setting Existing Conditions 4.1 l 3
4.11.5 Methodology 4.11 0 4.11.6 Thresholds of Significance 4.11 9
4.11.7 Proposed Project Natural Resources and Energy 4.11 11 4.11.8 Project Impacts 4.11 H
4.11.9 Mitigation Measures 4.1 l 23 4.11.10 Level of Significance After Mitigation 4.11 28
4.11.11 No Pronect No Activity Comparison 4.11 28
Aesthetics Light and Glare 4.12 1 4.12.1 Summary of Conclusions in FEIR No 563 4.12 1
4.12.2 Final EIR No 563 Supplemental Analysis 4.12 l 4.12.3 Environmental Setting Existing Conditions 4.12 2
4.12.4 Methodology 4.12 5 4.12.5 Thresholds of Significance 4.12 6
4.12.6 Project Impacts 4.12 7 4.12.7 Precautionary Mitigation Measures 4.12 13
4.12.8 Level of Significance After Mitigation 4.12 14 4.12.9 No Project No Activity Comparison 4.12 14

4.13 Cultural Resources 4.13 1 4.13.1 Summary of Conclusions in Final EIR No 563 4.13 1
4.13.2 Final EIR No 563 Supplemental Analysis 4.13 1 4.13.3 Environmental Setting Existing Conditions 4.13 2
4.13.4 Methodology 4.13 3 4.13.5 Thresholds of Significance 4.13 4
4.13.6 Project Impacts 4.13 5
4.13.7 Mitigation Measures 4.13 7 4.13.8 Level of Significance After Mitigation 4.13 9

4.13.9 No Project No Activity Comparison 4.13 9
4.14 Recreation 4.14 l 4.14.1 Summary Of Conclusions In Final EIR No 563 4.14 l
4.14.2 Final EIR No 563 Supplemental Analysis 4.14 1 4.14.3 Environmental Setting Existing Conditions 4.14 1
4.14.4 Methodology 4.14 8 4.14.5 Thresholds Of Significance 4.14 9
4.14.6 Proposed Recreational Amenities MCAS El Toro 4 14 9 4.14.7 Project Impacts 4.14 12
4.14.8 Mitigation Measures 4.14 19 4.14.9 Level Of Significance After Mitigation 4.14 21
4 14 10 No Project No Activity Comparison 4.14 21

Table of Contents v i County of Orange EIR No 573 7
7 Page 8 9

4.15 Public Safety 4.15 l 4.15.1 Summary of Conclusions in Final EIR No 563 4.15 l
4.15.2 Final EIR No 563 Supplemental Analysis 4.15 2 4.15.3 Environmental Setting Existing Conditions 4.15 2
4.15.4 Methodology 4.15 11 4.15.5 Thresholds of Significance 4.15 12
4.15.6 Proposed Project Features Relevant to Aviation Safety Issues 4.15 15 4.15.7 Project Impacts Air Safety 4.15 16
4.15.8 Mitigation Measures 4.15 29 4 15 9 Level of Significance After Mitigation 4.15 31
4 15 10 No Project No Activity Comparison 4.15 31
4.16 Hazardous Wastes and Hazardous Materials Use 4.16 l
4.16.1 Summary of Conclusions in Final EIR No 563 4.16 1 4.16.2 Final EIR No 563 Supplemental Analysis 4.16 3

4.16 3 Environmental Setting Existing Conditions 4.16 3 4.16 .4 Methodology 4.16 22
4 16 5 Threshold of Significance 4.16 23 4 16 6 Project Impacts 4.16 24
4.16.7 Mitigation Measures 4.16 51 4.15 8 Level of Significance After Mitigation 4.16 56
4.16.9 No Project No Activity Comparison 4.16 56
4.17 Socioeconimics 4.17 1 4.17.1 Summary Of Conclusions In Final EIR No 563 4.17 1
4.17 2 Final EIR No 563 Supplemental Analysis 4.17 2 4.17 3 Environmental Setting Existing Conditions 4.17 2
3.16 4 Methodology 4.17 10 4.17 5 Thresholds Of Significance 4 17 10
4.17.6 Project Impacts 4.17 11 4.17.7 Mitigation Measures 4 17 20
4.17.8 Level Of Significance After Mitigation 4.17 21 4.17.9 No Project No Activity Comparison 4.17 22

4.18 Risk of Upset 4.18 l
4.18.1 Summary of Conclusions in Final EIR No 563 4.18 l 4.18.2 Final EIR No 563 Supplemental Analysis 4.18 l

4 18 3 Environmental Setting Existing Conditions 4.18 2 4.4.18 4 Methodology 4.18 3
4 18 5 Thresholds of Significance 4.18 12
4.18.6 Proposed Project Land Uses 4 18 12 4.18 7 Project Impacts 4.18 14

4.18 8 Mitigation Measures 4.18 30 4 18 9 Level of Significance After Mitigation 4.18 34
4.18.10 No Project No Activity Comparison 4.18 34
County of Orange EIR No 573 vii Table of Contents 8
8 Page 9 10
VOLUME 2B
5.0 CUMULATIVE IMPACTS 5 l 5.1 CEQA Definition Of Cumulative Impacts 5 1
5.1.1 Methodology 5 1
5.1.2 Geographic Area 5 5 5.1.3 Criteria for Selection 5 6

5.2 Summary Of Conclusions In Final EIR No 563 5 6 5.2.1 Land Use 5 7
5.2.2 Transportation and Circulation 5 7 5.2.3 Noise
5 7 5.2.4 Hydrology and Water Quality 5 8

5.2.5 Public S vice and Utilities 5 8 5.2.6 natural Resources and Energy 5 9
5.2.7 Cultural Resources 5 9 5.2.8 Socioeconomics 5 9
5.3 Reasonably Foreseeable Probable Future Projects 5 10 5.3.1 County of Orange Jurisdiction Land Use Projects 5 12
5.3.2 City Jurisdictions Land Use Projects 5 15 5.3.3 Transportation Land Use Projects 5 43
5.3.4 Other Land Use Projects 5 46 5.3.5 Non Planned Land Use Projects 5 49

5.4 Cumulative Impacts By Resource Area 5 50 5.4.1
5.4.2
5.4.3 5.4.4
5.4.5 5.4.6
5.4.7 5.4.8

5.4.9 5.4 10
5.4.11 5.4.12
5.4.13 5.4.14
5.4 15

Potential Cumulative Impacts Related to Land Use 5 50
Potential Cumulative Impacts Related to General Plan
Consistency 5 55
Transportation and Circulation 5 57 Potential Cumulative Impacts Related to Noise 5 63

Potential Cumulative Impacts Related to Air Quality .5 65
Topography 5 67 Soils Geology and Seismicity 5 68

Potential Cumulative Impacts Related to Hydrology and Water
Quality 5 68 Potential Cumulative Impact Related to Biological Resources 5 69

Potential Cumulative Impacts Related to Public Services and Utilities 5 72
Natural Resources and Energy 5 76
Potential Cumulative Impacts Related to Aesthetics Light and Glare 5 79

Potential Cumulative Impacts Related to Cultural Resources 5 80 Potential Cumulative Impacts Related to Recreation 5 81 1
Potential Cumulative Impacts Related to Public Health and Safety 5 82

Table of Contents viii County of Orange EIR No 573 9
9 Page 10 11
5.4.16 Potential Cumulative Impacts Related to Hazardous Materials and Hazardous Waste 5 83
Potential Cumulative impacts Related to Socioeconomics .5 84 5.4.18 Potential Cumulative Impacts Related To The Risk of Upset .5 86

6.0 LONG TERM IMPLICATIONS OF THE PROPOSED PROJECT 6 1 6 .1 Significant Irreversible Environmental Changes That Would be Caused
by the Proposed Project Should it be Implemented 6 l 6.2 Growth Inducing Impacts of the Proposed Project 6 2
6.3 CEQA Definition Of Growth Inducing Impacts l 6 2 6.4 Potential Growth Inducing Impacts By Alternative 6 -3
6 .4 .1 Potential Growth Inducing Impacts of The Proposed Project Reuse Alternative A 6 -3

7.0 Signif icant UNAVOIDABLE ADVERSE IMPACTS 7 1 7.1 Overview 7 -1
7.2 Significant Unavoidable Adverse Impacts Under The Proposed Project 7 1

8.0 ALTERNATIVES 8 1 8.1 Introduction 81
8.1.1 Final EIR No 563 Alternatives 8 1 8.1.2 ASMP Alternatives 8 2
8.1.3 Introduction to EIR Alternatives 8 -3 8.2 No Project No Activity Alternative Alternative E JWA Status Quo
Aviation Roles No Aviation Reuse at Former MCAS El TORO 8 9 8 .2 .1 Aviation Uses 8 -9
8.2.2 N o n Av i a t i o n Revenue Support Uses 8 9 8.2.3 Attainment of Project Objectives
8.2.4 Environmental Impacts of the No Project No Activity Alternative 8 10 8.2.5 Conclusions 8 29
8 .3 ETRPA Nonaviation Plan Alternative 8 31 8.3.1 Aviation Uses 8 31
8.3.2 Nonaviation Revenue Support Uses 8 3 1 8.3 -3 Phasing Build Out Over 20 Years 8 32
8.3.4 Attainment of Project Objectives 8 33 8.3.5 Environmental Impacts of the ETRPA Nonaviation Plan
Alternative 8 33 8.3 -6 Feasibility 8 80
8.3.7 Conclusions 8 82 8.4 Alternative A JWA Status Quo Aviation Roles OCX Full Domestic 8 83
8.4.1 Aviation Uses 8 83 8.4.2 Nonaviation Revenue Support Uses 8 83
8.4.3 Attainment of Project Objectives 8 84
8.4.4 Environmental Impacts of Alternative A 8 84

County of Orange EIR No 573 IX Table of Contents 10
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8.4.5 Feasibility 8 104
8.4.6 Conclusions 8 104
8.5 Alternative C JWA Short Haul OCX Medium Haul to Full International
Linked Air Service 8 105 8.5.1 Aviation Uses 8 105

8.5.2 Nonaviation Revenue Support Uses 8 l 05 8.5.3 Attainment of Project Objectives 8 106
8.5.4 Environmental Impacts of Alternative C 8 106 8.5.5 Feasibility 8 124
8.5.6 Conclusions 8 124
8.6 Alternative F JWA Short to Limited Long Haul With Limited General Aviation No Aviation Reuse at Former MCAS El Toro 8 125

8.6.1 Aviation Uses 8 125
8.6.2 Nonaviation Revenue Support Uses 8 126 8.6.3 Attainment of Project Objectives 8 126

8.6.4 Environmental Impacts of Alternative F 8 126
8.6.5 Feasibility 8 141
8.6.6 Conclusions 8 142
8.7 Alternative G JWA Limited International No Aviation Reuse at Former MCAS El Toro 8 143

8.7.1 Aviation Uses 8 143 8.7.2 Nonaviation Revenue Support Uses 8 144
8.7.3 Attainment of Project Objectives 8 144
8.7.4 Environmental Impacts of Alternative G 8 144
8.7.5 Feasibility 8 162
8.7.6 Conclusions 8 163 8.8 Alternative J JWA Status Quo Aviation Roles OCX Full International

With Widely Spaced Runways 8 165 8.8 1 Aviation Uses 8 165
8.8.2 Nonaviation Revenue Support Uses 8 165
8.8.3 Attainment of Project Objectives 8 165
8.8.4 Environmental Impacts of Alternative J 8 166 8.8.5 Feasibility 8 168

8.8.6 Conclusions 8 168
8.9 Alternative OCX Airport Runway Layout Wildlands Ranch Alternative 8 1 69 8.9.1 Aviation Uses 8 169

8.9.2 OCX Facility Improvements for the Wildlands Ranch Alternative
October 5,1999 Submittal 8 177
8.9.3 Nonaviation Revenue Support Uses 8 184 8.9.4 Environmental Impacts of Wildlands Ranch Alternative 8 185

8.9.5 Conclusions 8 188 8.10 Land Use Alternatives at Former MCAS El Toro 8 189
8.10.1 Nonaviation Revenue Support Area Alternative 1 8 189 8.10.2 Environmental Impacts of Nonaviation Revenue Support Area
Alternative 1 8 191
Table of Contents x County of Orange EIR No 573 11
11 Page 12 13
8.10.3 Nonaviation Revenue Support Area Alternative 2 8 195
8.10 4 Environmental Impacts of Nonaviation Revenue Support Area
Alternative 2 8 197
8.11 Alternative K JWA Status Quo Aviation Roles Alternative Airport
Site Full Domestic to Full International No Aviation Reuse at MCAS
El Toro 8 203 8.11.1 CEQA Requirements for Alternative
Sites l 8 203 8.11.2 Previous Studies of Alternative Airport Sites 8 203

8.11.3 Alternative Sites Evaluated for EIR No 573 8 205
8.12 Environmentally Superior Alternative 8 206 8.12.1 Introduction 8 206

8.12.2 No Project No Activity Impacts Summary 8 206 8.12.3 Environmentally Superior
Alternative 8 207
8.13 Comparison of the Environmental Impacts of the Project Alternatives .8 208
8.14 Alternatives Considered but Rejected 8 210 8.14.1
One Airport Scenarios Not Carried Forward 8 210 8.14.2
Unlinked Two Airport Scenarios Not Carried Forward 8 212 8.14.3 Linked Two Airport Scenarios Not Carried Forward 8 2 16

9.0 INVENTORY OF MITIGATIONS MEASURES 9 1 9.1 Introduction 9 1
9.1.1 Standard Conditions Of Approval 9 l
9.2 Mitigation Related To Land Use 9 l 9.2.1 Final EIR No 563 Mitigation Measures 9 1

9.2.2 Additional Precautionary Mitigation Measures 9 2 9.3 Mitigation
Related To General Plan Consistency 9 3 9.3.1 Final EIR No 563 Mitigation Measures 9 3

9.3.2 Additional Mitigation Measures 9 4
9.4 Mitigation Related To Transportation And Circulation 9 4
9.4.1 Final EIR No 563 And EIR No 563 Supplemental Analysis
Mitigation Measures 9 4
9.4.2 DEIR No 573 Additional Mitigation Measures 9 7
9.5 Mitigation Related To Noise 9 8
9.5.1 Final EIR NO 563 Mitigation Measures 9 8 9.5.2 Proposed Mitigation Measures 9 10

9.6 Mitigation Related To Air Quality 9 10
9.6.1 Final EIR No 563 Mitigation Measures 9 10
9.6.2 Mitigation Measures Updating The Final EIR No 563 Mitigation 9 1 2
9.6.3 Additional Mitigation Measures 9 17 9.7 Mitigation Related To Soils Geology And SEISMICITY 9 18

9.7.1 Final EIR No 563 Mitigation Measures 9 18
9.8 Mitigation Related To Hydrology And Water Quality 9 19 9.8.1 Mitigation Measures Identified In Final EIR No 563 9 l 9

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9.9
9.10
9.11
9.12
9.13
9.14

9.15 9.16

9.17
9.18
9.19 9.20

9.8.2 Mitigation Measures Identified In Final EIR No 563 Final Supplemental Analysis 9 2 1
Mitigation Related To Biological Resources 9 23 9.9.1 Final EIR No 563 Mitigation Measures 9 23
9.9.2 Additional Mitigation Measures 9 2 3 Mitigation Related To Public Services And Utilities 9 27
9.10.1 Final EIR No 563 Mitigation Measures 9 27 9.10.2 Additional Mitigation Measures 9 28
Mitigation Related To Natural Resources And Energy 9 29 9.11 l Final EIR No 563 Mitigation Measures 9 29
9.11.2 Final EIR No 563 Supplemental Analysis Mitigation Measures 9 30 Mitigation Related To Aesthetics Light And Glare 9 3 1
9.12.1 Final EIR No 563 Mitigation Measures 9 3 1 Mitigation Related To Natural Resources 9 31
9.13.1 Final EIR No 563 Mitigation Measures 9 3 1 Mitigation Related To Recreation 9 32
9.14.1 Final EIR No 563 Mitigation Measures 9 3 2 9.14.2 Additional Mitigation Measures 9 32
Mitigation Related To Public Safety 9 33 Mitigation Related To Hazardous Wastes And Hazardous Materials Use 9 33
9.16.1 Final EIR No 563 Mitigation Measures 9 33 9.16.2 Additional Mitigation Measures 9 35
Mitigation Related To Socioeconomics 9 37 9.17.1 Final EIR No 563 Mitigation Measures 9 37
Mitigation Related To Risk Of Upset 9 38 9.18.1 Additional Mitigation Measures 9 38
Mitigation Related To Cumulative Impacts 9 38 Standard Conditions 9 38

10 0 ENVIRONMENTAL EFFECTS FOUND NOT TO BE SIGNIFICANT 10 1

1 1 .0 PERSONS AND ORGANIZATIONS CONSULTED 1 l l
12.0 LIST OF PREPARERS AND CONTRIBUTORS 12 1

13.0 REFERENCES 13 I

Table of Contents County of Orange EIR No 573 13
13 Page 14 15
VOLUME 3 GRAPHICS
APPENDICES
A
B
c
D
E
F
G
H
I
J
K
L
M

Notice of Preparation and Initial Study
Comments on the Notice of Preparation
Technical Reports Land Use Compatibility and General Plan Consistency
Technical Report Traffic Analysis
Technical Report Noise Analysis
Technical Report Air Quality Analysis
Technical Report Hydrology
Technical Report Biological Resources
Technical Report Hazardous Materials
Alternative Project Sites
Consistency with SCAG Policies
County of Orange Standard Conditions of Approval 1998
Technical Report Public Safety

County of Orange EIR No 573 Table of Contents 14
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LIST OF TABLES
Table l l Project Related Documents 1 9
Table 3 l Proposed Project Uses Acreages By Planning Area 3 4 Table 3 2 Facilities at MCAS El Toro Proposed for Interim Nonaviation Reuse .3 28

Table 3 3 Major Buildings at MCAS El Toro Considered for Potential Aviation Reuse .3 30
Table 3 4 Summary of Facility Requirements for Proposed Project at JWA 2020 .3 3 1
Table 3 5 Requirements for General Aviation at JWA 2005 to 2020 3 32
Table 3 6 Summary Of Aviation Activity Forecasts For The Proposed Project 2005 To
2020 3 34 Table 3 7 Comparison of the Community Reuse Plan and the Airport System Master Plan 3 36

Table 3 8 Comparison of Proposed Project and the 1996 Community Reuse Plan .3 38
Table 3 9 Summary List of Improvements at OCX and JWA Recommended in the Airport System Master Plan to 2020 3 41

Table 3 10 Demolition Construction Schedule at OCX 3 57
Table 3 11 Proposed Nonaviation Revenue Support Uses and Locations 3 59
Table 3 12 Proposed Agricultural Use Parcels at OCX Phase 1 3 61 Table 4 l l Proposed Agricultural Use 4.1 19

Table 4.2 l Summary Orange County General Plan Consistency Topics Identified in
EIR No 563 4.2 3 Table 4 .3 1 Comparison of CRP and Proposed Project Trip Generation 4.3 l

Table 4.3 2 Long Range Year 2020 Impacted Arterial Miles EIR No 563 4 .3
Table 4.3 3 Existing 1995 Impacted Arterial Miles EIR No 563 FSA 4.3 2
Table 4.3 4 Existing Trip Generation Summary 4.3 5
Table 4.3 5 Deficient Locations Based on Existing Levels of Service 4.3 7
Table 4.3 6 Analyzed Scenarios 4.3 9 Table 4.3 7 Roadway Level of Service LOS Descriptions 4.3 12

Table 4.3 8 Trip Generation Summary Proposed Project at Build Out 4.3 16
Table 4.3 9 Proposed Project Access Improvements 4.3 17
Table 4.3 l 0 Existing Plus Proposed Project Impact Summary 4.3 23
Table 4.3 l 1 Build Out 2020 Proposed Project Impact Summary 4.3 25
Table 4.3 12 Trip Generation Summary Base Transition Plan Pre Phase 1 Land Uses 4.3 26 Table 4.3 l 3 Trip Generation Summary Proposed Project Phase 1 4.3 28

Table 4.3 14 Phase 1 2005 Proposed Project Impact Summary 4.3 29 Table 4.3 15 Trip Generation Summary Proposed Project Phase 2 4.3 30
Table 4.3 16 Phase 2 2010 Proposed Project Impact Summary 4.3 3 1
Table 4.3 17 Trip Generation Summary Proposed Project Phase 3 4.3 32
Table 4.3 l 8 Phase 3 2015 Proposed Project Impact Summary 4.3 33
Table 4.3 19 Proposed Project Access Improvements 4.3 48
Table 4.3 20 Proposed Project Impact Mitigation Improvements 4.3 5 1 Table 4.4 l Factors That Affect Individual Annoyance to Noise 4.4 5

Table 4.4 2 Land Uses Within the 1981 AICUZ 65 dB CNEL Contour 4.4 15 Table 4.4 3 1998 MCAS El Toro Aircraft Operations 4.4 16

Table of Contents xiv County of Orange EIR No 573 15
15 Page 16 17
Table 4.4 4 Average Daily MCAS El Toro Aircraft Operations Percent by Time of Day
for Calendar Year 1998 4.4 16
Table 4.4 5 MCAS El Toro Aircraft Types by Percent of Daily Operations for Calendar
Year 1998 4.4 17
Table 4.4 6 Average Daily Jet Operations by Flight Corridor at the MCAS El Toro in
Calendar Year 1998 4.4 l 8
Table 4.4 7 1998 MCAS El Toro Average Daily Runway Usage 4.4 20
Table 4.4 8 Existing 1998 MCAS El Toro CNEL Area In Acres 4.4 2 1 Table 4.4 9 Land Use Summary for the 1998 Existing Condition and 1981 AICUZ 65 dB

CNEL Contours 4.4 2 1
Table 4.4 10 Specific Receptor Locations and Existing Land Uses 4.4 22
Table 4.4 l 1 CNEL at Sensitive Receptor Locations for Calendar Year 1998 MCAS El
Toro Military Operations 4.4 23
Table 4.4 12 SENEL for Military F A 18 Operations 4.4 24
Table 4.4 13 SENEL for Various Military Aircraft Operations 4.4 25 Table 4.4 14 1998 JWA Air Carrier Operations by Percent of Aircraft Type
4.4 29 Table 4.4 15 JWA 1998 CNEL at Noise Monitoring Sites 4.4 30

Table 4.4 16 Sample Energy Average SENEL by Noise Monitoring Sites for JWA for the Fourth Quarter of 1998 4.4 3 1
Table 4.4 l 7 Time Above Values for Existing 1998 JWA Aircraft Operations in Average
Minutes Per Day 4.4 32 Table 4.4 l 8 Arterial Road Vehicle Mix Data Traffic Distribution By Time of Day

Shown as a Percent of Average Daily Traffic 4.4 33 Table 4.4 19 Contour Distances for Existing Conditions on Orange County Roads 4.4 34
Table 4.4 20 County of Orange Land Use Compatibility Criteria 4.4 52
Table 4.4 21 County of Orange Land Use Compatibility Criteria Explanations and
Definitions 4.4 53
Table 4.4 22 FHWA Noise Abatement Criteria for Highway Construction Projects 4.4 54
Table 4.4 23 Annual and Daily Year 2020 Operations by Time of Day at OCX .4.4 57
Table 4.4 24 Year 2020 Daily Operations by Runway at OCX 4.4 57 Table 4.4 25 Interim Year Operations At OCX Under the Proposed Project
.4.4 58 Table 4.4 26 Summary of OCX Year 2020 Operations by Aircraft Type 4.4 54

Table 4.4 27 Interim Year Fleet Mix at OCX 4.4 60
Table 4.4 28 Year 2020 Daily Departures at OCX by Stage Length for the Proposed Project 4.4 64

Table 4.4 29 Land Use Comparison 1998 Military and 2020 Proposed Project 4.4 68
Table 4.4 29a Land Use Comparison Table Military CRP and Alternative B Year 2005 2010 2015 and 2020 4.4 69

Table 4.4 30 Comparison Of 1998 And 2020 CNEL At Sensitive Receptor Locations For The Proposed Project 4.4 7 1
Table 4.4 30a Comparison of CNEL Alternative B Years 2005 2010 2015 and 2020 4.4 7 2
Table 4.4 31 Corridor Comparison of 1998 Military Operations and Noise and the
Proposed Project 4.4 75 Table 4.4 32 Aggregation of Aircraft Operations into Aircraft 4.4 76

County of Orange EIR No 573 x v Table of Contents 16
16 Page 17 18
Table 4.4 33 Comparison of Existing Military Jet Average Daily Operations with Civilian
Aviation Jet Operations by Flight Corridor 4.4 77
Table 4.4 34 Time Above Data at Sensitive Receptors for 1998 Military and 2020 Proposed Project 4.4 79

Table 4.4 34a Time Above Data for Year 2020 Alternative B at Sensitive Receptor Locations Compared with Years 2005,201O and 2015,24 Hour Exposure 4.4 8 1
Table 4.4 34b Time Above Data for Year 2020 Alternative B at Sensitive Receptor
Locations Compared With Years 2005,201O and 2015 Night Hours Only
10pm 7am 4.4 82
Table 4.4 35 Time Above 65 dBA for Existing Military and the Proposed Project Operations 4.4 83

Table 4.4 36 2020 Annual and Daily Operations by Time of Day at JWA 4.4 84 Table 4.4 37 Summary of JWA Operations by Aircraft Type for the Proposed Project 4.4 85
Table 4.4 38 2020 Daily Operations by Runway for JWA 4.4 86 Table 4.4 39 2020 Aircraft Stage Lengths for JWA for the Proposed Project Average Daily
Departures 4.4 86 Table 4.4 40 Aircraft Takeoff Profiles for JWA 4.4 87
Table 4.4 41 Land Use Comparison for 1998 and 2020 for JWA Area in Square Miles 4.4 88
Table 4.4 42 Comparison of 1998 and 2020 CNEL at JWA Sensitive Receptor Locations for the Proposed Project 4.4 89

Table 4.4 43 Time Above Data for JWA 1998 and 2020 Under the Proposed Project at
Sensitive Receptor Locations 4.4 90
Table 4.4 44 Road Noise Level Changes for Future Conditions 4.4 94
Table 4.4 45 Road Noise Level Increases Greater than 1 .5 4.4 l 17
Table 4.4 46 Contour Distances for Future Conditions Under the Proposed Project 4.4 1 27
Table 4.4 47 Utilization of RW 34 Right Turn by Aircraft Type and Stage Length 4.4 l 55 Table 4.4 48 Comparison of Years 1998 and 2020 CNEL at Sensitive Receptor Locations for

Mitigation Alternative 1 Night Preferential Runway System 4.4 157 Table 4.4 49 Time Above Data for Year 2020 Alternative B at Sensitive Receptor Locations
Compared With Night Preferential Runway Alternative 1 Night Hours Only 10pm 7am
4.4 l 58
Table 4.4 50 Time Above Data for Year 2020 Alternative B at Sensitive Receptor
Locations Compared With Night Preferential Runway Alternative 1 24 Hour Exposure 4.4 159

Table 4.4 51 Comparison of Years 1998 and 2020 CNEL at Sensitive Receptor Locations for Mitigation Alternative 2 Night Curfew 4.4 161
Table 4.4 52 Time Above Data for Year 2020 Alternative B at Sensitive Receptor
Locations Compared With Night Curfew Alternative 2 Night Exposure
10pm 7am 4.4 162
Table 4.4 53 Time Above Data for Year 2020 Alternative B at Sensitive Receptor
Locations Compared With Night Curfew Alternative 2 24 Hour Exposure 4.4 163 Table 4.4 54 Comparison of Years 1998 and 2020 CNEL at Sensitive Receptor Locations

for Mitigation Alternative 3 Night SENEL 86 Limit 4.4 l 65

Table of Contents xvi County of Orange EIR No 573 17
17 Page 18 19
Table 4.4 55 Time Above Data for Year 2020 Alternative B at Sensitive Receptor Locations Compared With 86 SENEL Night Limit Alternative 2 Night Exposure
10pm 7am 4.4 166 Table 4.4 56 Time Above Data for Year 2020 Alternative B at Sensitive Receptor
Locations Compared With 86 SENEL Night Limit Alternative 2,24 Hour Exposure 4.4 167
Table 4.4 57 Comparison of Years 1998 and 2020 CNEL at Sensitive Receptor Locations for Mitigation Alternative 4 Right Turn Runway 34 Departures 4.4 168
Table 4.4 58 Time Above Data for Year 2020 Alternative B at Sensitive Receptor Locations Compared With Runway 34 North Right Turn Alternative 4 Night Exposure

10pm 7am 4.4 l 69
Table 4.4 59 Time Above Data for Year 2020 Alternative B at Sensitive Receptor Locations Compared With Runway 34 North Right Turn Alternative 4,24 Hour

Exposure 4.4 l 70 Table 4.4 60 Summary of Land Use Impacts Alternative B Year 2020 4.4 171
Table 4.4 61 Proposed Project Hour by Operations Per Year 2020 4.4 l 74 Table 4.4 62 Impact of Curfew on Annual Commercial Operations at OCX in 2020 4 4 175
Table 4.5 l Ambient Air Quality Standards 4.5 12 Table 4.5 2 Air Pollutants and Their Effect on Human Health 4.5 14
Table 4.5 3 Ambient Air Quality at North Orange County Air Monitoring Station .4 .5 16 Table 4.5 4 Ambient Air Quality at Central Orange County Air Monitoring Station 4.5 17
Table 4.5 5 Ambient Air Quality at North Coast Orange Air Monitoring Station 4.5 1 8 Table 4.5 6 Ambient Air Quality Saddleback Valley Air Monitoring Station .4.5 19
Table 4.5 7 El TORO MCAS Airport Flying Operations 1994 AQMP 4.5 23 Table 4.5 8 El Toro MCAS Airport Flying Operations 1997 AQMP 4.5 25
Table 4.5 9 1998 Aircraft Operations Emissions Pounds Day 4.5 26 Table 4.5 10 1998 Ground Support Equipment Emissions Pounds Day 4.5 27
Table 4.5 11 1 998 Energy Consumption Emissions MCAS El Toro Site Pounds Day 4.5028 Table 4.5 12 1998 Energy Consumption Emissions John Wayne Airport Pounds Day 4.5 28
Table 4.5 13 Existing Airport Vehicular Trips Emissions Pounds Day 4.5 30 Table 4.5 14 Summarized Air Pollutant Emissions for Existing Conditions 4.5 30
Table 4.5 15 Existing l Hour CO Concentrations Year 1998 No Project Predicted One Hour Ambient Carbon Monoxide Concentrations for Intersections with the
Highest Volume and Worst Level of Service LOS 4.5 34 Table 4.5 16 Existing 8 Hour CO Concentrations Year 1998 No Project Predicted
Eight Hour Ambient Carbon Monoxide Concentration for Intersections with the Highest Volume and Worst Level of Service LOS 4.5 35
Table 4.5 17 1998 Pollutant Concentrations JWA Worst Case Operations and Meteorology 4.5 3 7
Table 4.5 l 8 1998 Pollutant Concentrations MCAS El Toro Worst Case Operations and Meteorology 4.5 38
Table 4.5 l 9 Assumed Distribution of Phase Activities 4.5 4 1 Table 4 5 20 Estimated Daily Truck Delivery Trips One Way During OCX
Construction 4.5 42 Table 4.5 21 Construction Traffic and Equipment Exhaust Emissions Proposed Project 4.5 44

County of Orange EIR No 573 xvii Table of Contents 18
18 Page 19 20
Table 4.5 22 Fugitive Dust Emissions Proposed Project 4 5 45 Table 4.5 23 Aircraft Emissions Pounds Day 4.5 48
Table 4.5 24 Ground Support Equipment Emissions Pounds Day 4.5 50 Table 4.5 25 Energy Consumption Emissions Pounds Day 4.5 52
Table 4.5 26 Fuel Storage and Dispensing Emissions Pounds Day 4.5 53 Table 4.5 27 Air Pollutant Emissions Vehicular Traffice Pounds Day John Wayne
Airport 4.5 54 Table 4.5 28 Air Pollutant Emissions Vehicular Traffic Pounds Day Orange County
International 4.5 55
Table 4.5 29 Air Pollutant Emissions Vehicular Traffic Pounds Day Both Airports 4.5 56 Table 4.5 30A Regional Vehicular Traffic Tons Day Emissions1 4.5 57

Table 4.5 3 1 Total Project Emission Inventory Pounds Per Day Unless Noted 4.5 59 Table 4.5 32A Regionwide Emissions Inventory 2020 Proposed Project No Project
Pounds Day Unless Noted 4.5 61 Table 4.5.32B Regional Vehicular Traffice Emissions Pounds Day 4.5 62
Table 4.5 326 Regionwide Emissions Inventory 2005 Proposed Project No Project
Pounds Day Unless Noted 4.5 64 Table 4.5 32D Regionwide Emissions Inventory 2010 Proposed Project No Project

Pounds Day Unless Noted 4.5 65 Table 4.5 32E Regionwide Emissions Inventory 2015 Proposed Project No Project
Pounds Day Unless Noted 4.5 66 Table 4.5 33 Potential GSE Emissions Reductions Pounds Day 4.5 73
Table 4.5 34 Potential 2020 Proposed Project GSE Emissions Reductions Pounds Day .4.5 74 Table 4.5 35 Potential Project Emissions Reductions Pounds Per Day Unless Noted .4.5 85
Table 4.5 36 2020 No Project No Activity Alternative Regional Air Pollutant Emissions Pounds Day 4.5 86
Table 4.5 37 TAC Emissions Under Existing Conditions 1998 at JWA and MCAS El Toro 4.5 91
Table 4.5 38 TAC Emissions Under Existing Plus Proposed Project Conditions 2020 at JWA and Proposed OCX 4.5 92
Table 4.5 39 Estimated Worst Plausible TAC Related Health Effects 4.5 94 Table 4.5 40 Central Tendency Excess Lifetime Cancer Risks per million for the MEIs .4.5 96
Table 4.5 41 Estimated Effects with Implementation of Mitigation Measures TAC 1 and TAC 2 4.5 98
Table 4.5 42 Estimated Effects With Implementation Of Mitigation Measures TAC 1 TAC 2 And TAC 3 4.5 99
Table 4.7 l Soil Associations on the MCAS El Toro Site 4.7 4 Table 4.7 2 Faults and Seismicity Characteristics in the MCAS El Toro Site Area 4.7 7
Table 4.7 3 Soil Associations on the JWA Site 4.7 9 Table 4.7 4 Faults and Seismicity Characteristics in the JWA Area 4.7 l 1
Table 4.8 l Summary of 100 Year Flows at MCAS El Toro Under Existing Conditions -4.8 4 Table 4.8 2 Summary of 100 Year Flows at JWA Under Existing Conditions -4.8 l 3
Table 4.8 3 Summary of 100 Year Flows and Related Capacity Under the Proposed Project With Existing Drainage Facilities 4.8 18

TabIe of Contents nfii County of Orange EIR No 573 19
19 Page 20 21
Table 4.8 4 Summary of 100 Year Flows and Related Capacity Under the
Proposed Project With Project Drainage Facilities 4.8 18
Table 4.8 5 Proposed Project Flow Capacity Compared to Existing Flow Capacity 4.8 19
Table 4.8 6 NPDES Permit Runoff Concentrations for MCAS El Toro Site .4.8 22
Table 4.8 7 Percent Change from Existing Conditions of Outflow and Impervious
Drainage Area For Proposed Project 4.8 23 Table 4.8 8 Bee Canyon Agua Chinon Estimated Outfall Point Concentrations for

Proposed Project 4.8 24
Table 4.9 l Plant Communities in the Habitat Reserve 4.9 9
Table 4.9 2 Special Interest Plant Species on the MCAS El Toro Site 4.9 14
Table 4.9 3 Special Interest Wildlife Species on the MCAS El Toro Site Habitat Reserve JWA and Upper Newport Bay Ecological Reserve
4.9 15 Table 4.9 4 Wildlife Species Known Expected Or With Limited Potential to Occur in

the Habitat Reserve 4.9 19
Table 4.9 5 Noise Exposure for Biological Resource Receptor Locations 4.9 34 Table 4.10 l UCTA Bus Transit Boardings 1994 1998 4.10 7

Table 4.10 2 Existing Daily Bus Transit Trips 4.10 8
Table 4.10 3 Existing Metrolink Boarding lightings at Irvine Transportation
Center 1998 4.10 8
Table 4.1 O 4 Fire Stations and Their Facilities at and in the Vicinity of JWA .4.10 l 6 Table 4.1 O 5 Average Daily Transit Trips at JWA and the El Toro Site Under

Project Build Out 2020 4.10 23 Table 4.10 6 Average Daily Transit Trips at JWA and El Toro Site Under
Project Phase 1 2005 4.10 24
Table 4.10 7 Average Daily Transit Trips at JWA and the El Toro Site Under
Project Phase 2 2010 4.1 O 24 Table 4.1 O 8 Average Daily Transit Trips at JWA and the El Toro Site Under

Project Phase 3 2015 4.10 25 Table 4.1 0 9 Proposed Project Solid Waste Generation 4.10 26
Table 4.1 O l 0 Estimated Daily Demand for Electricity for the Nonaviation Revenue
Support Uses 4.10 33 Table 4.10 l 1 Estimated Daily Demand for Natural Gas for Nonaviation Revenue

support uses 4.1 O 38
Table 4.1 O 1 2 Estimated Daily Demand for Domestic Water for the Nonaviation Revenue Support Uses 4.10 41

Table 4.1 O l 3 Estimated Daily Demand for Recycled Water for the Nonaviation Revenue Support Uses 4.10 43
Table 4.10 14 Estimated Daily Waste Water Generated by the Nonaviation Revenue
Support Uses 4.10 45 Table 4.1 l 1 Estimated Daily Jet Fuel Use by Commercial Aircraft 4.11 8

Table 4.11 2 Summary of Agricultural Land Impacts 4.1 l 12
Table 4.11 3 Annual Electricity Demand GWH 4.11 14 Table 4.1 l 4 Annual Natural Gas Demand Therms 4.11 16

Table 4.1 l 5 Annual Automotive Gasoline Demand Gallons 4.1 f 17
Table 4.1 l 6 Annual Diesel Fuel Demand Gallons 4.11 17

County of Orange EIR No 573 xix Table of Contents 20
20 Page 21 22
Table 4.11 7 Construction Related Energy Consumption MCAS El Toro .4.11 19
Table 4.1 l 8 Estimated Jet Fuel Consumption for JWA and OCX Under the
Proposed Project 4.1 l 20
Table 4.1 l 9 Projection of Jet Fuel Loaded onto Commercial Aircraft in the
Southern California Air Service Area 1998 And 2020 4.1 l 22 Table 4.1 l 10 Forecast of Passengers and Cargo in the Air Service Area 4.1 l 22

Table 4.15 l Nationwide Existing Airport Related Military Aircraft Accident Rates
19734993 4.15 4
Table 4.15 Z NTSB Aircraft Accident Rates for the United States 1982 1998
On and Off Airport Combined 4.157
Table 4.15 3 Accident Summary for JWA 1964 1998 On and Off Airport Combined 4.15 7

Table 4.15 4 JWA Summary of Airport Related Accidents by Phase 1980 1998 -4.15 8
Table 4.15 5 Summary Comparison of Aircraft Accident Potential For MCAS El Toro
and JWA Proposed Project 2020 a 4.15 17
Table 4.15 6 Proposed Project Forecast Mix of Large and Small Aircraft 4.1527
Table 4.16 1 Installation Restoration Program Sites at MCAS El Toro 4.16 8 Table 4.17 l Population Housing and Employment Trends and Forecasts for 1990 to

2020 4.17 4
Table 4.17 2 Demographic and Socioeconomic Characteristics in 1990 Project Site Surrounding Area and Orange County 4.17 8

Table 4.17 3 Comparison of Socioeconomic Characteristics of Final EIR No 563
CRP to the Proposed Project 4.17 l 1
Table 4.17 4 Projected On Site Employment Proposed Project 4.17 13
Table 4.17 5 Existing and Planned Residential Development in Planned Communities
in the El Toro Study Area 4.17 16 Table 4.18 1 Accident Scenario Probabilities Frequencies 4.18 9

Table 4.18 2 Accident Severity Categories 4.18 l 1
Table 4.18 3 Proposed Project Estimated Daily Jet Fuel Tank Truck Supply Operations
by Year 4.18 13
Table 4.18 4 Jet A Physical and Chemical Properties 4.18 15
Table 4.18 5 Jet A Bulk Fuel Storage Tank Release Scenarios MCAS El Toro a .4.18 17 Table 4.18 6 Jet A Tank Truck Highway Accident Release Scenarios Single

Incident a 4.18 18 Table 4.18 7 Proposed Project Jet Fuel Tank Truck Daily Accident Probabilities MCAS
El Toro Site 4.18 20 Table 4.18 8 Proposed Project Bulk Jet Fuel Storage Tank Daily Accident Probabilities MCAS
El Toro Site 4.18 22
Table 4.189 Estimated Daily Aircraft Induced Bulk Fuel Storage Facility Accident
Probabilities MCAS El Toro Site Runway 7 Arrivals 4.18 26 Table 4.18 10 Proposed Project Jet Fuel Tank Truck Daily Accident Probabilities JWA

Site 4.18 28 Table 4.18 l 1 Summary of Weighted JWA On Site Fatal Accident Potential Under
Proposed Project 2020 4.18 30

Table of Contents xx County of Orange EIR No 573 21
21 Page 22 23
Table 4.18 l 2 Bulk Jet Fuel Storage Tank Daily Accident Probabilities OCX with Pipeline Fuel Supply Option 4.18 33
Table 5.1 l Regional Growth Projections 2000 to 2020 5 3 Table 5.1 2 Comparison of Year 2020 OCP 96M and Post 2020 Cumulative Development
Forecasts 5 -4 Table 5.3 l Reasonable Foreseeable Probable Future Projects July 1999 County of Orange
Jurisdiction Land Use Projects 5 14 Table 5.3 2 Reasonably Foreseeable Probable Future Projects July 1999 City Jurisdictions
Land Use Projects 5 16 Table 5.3 3 Unspecified Projects in the City of Irvine 5 27
Table 5.3 4 Reasonably Foreseeable Probable Future Projects July 1999 Related Transportation Land Use Projects 5 44
Table 5.3 5 Reasonable Foreseeable Probable Future Projects July 1999 Other Related Land Use Project 5 47
Table 5.4 l Cumulative Impacts With Cumulative and Proposed Projects 5 51 Table 5.4 2 Post 2020 Non Committed Planned MP AH Improvements 5 59
Table 5.4 3 Post 2020 Unplanned Mitigation Improvements 5 61 Table 5.4 4 Summary of Off Site Cumulative Coastal Sage Scrub Impacts Acres by
Phase 5 70 Table 5.4 5 Summary of Off Site Agricultural Soils Impacts Acres by Phase 5 78
Table 8.1 l Summary Comparison of Principal Aviation Characteristics and Major Impacts for the CRP Existing Conditions and Alternatives 8 6
Table 8.1 2 Summary of Aviation Activity at Orange County Airports Under Alternative Airport System Development Scenarios 8 -7
Table 8.2 I Residential and School Land Uses Within 65 CNEL 8 11 Table 8.2 2 Trip Generation Summary No Project No Activity Alternative 8 12
Table 8.2 3 Year 2020 No Project No Activity Alternative Project Direct Air Pollutant Emissions Pounds Day 8 14
Table 8.2 4A Regionwide Emissions Inventory 2005 Proposed Project No Project Pounds Day Unless Noted 8 15
Table 8.2 5 Year 2020 No Project No Activity Pollutant Concentrations JWA Worst Case Operations and Meteorology 8 20
Table 8.2 6 Year 2020 No Project Jo Activity Alternative Predicted One Hour Ambient Carbon Monoxide Concentrations for Intersections With the Highest Volume and
the Worst Level of Service 8 21 Table 8.2 7 Year 2020 No Project No Activity Alternative Predicted Eight Hour Ambient
Carbon Monoxide Concentrations for Intersections With the Highest Volume and the Worst Level of Service 8 22
Table 8.3 l Trip Generation Summary ETRPA Nonaviation Plan Alternative 8 34 Table 8.3 2 Existing Plus ETRPA Nonaviation Plan Alternative Impact Summary 8 36
Table 8.3 3 ETRPA Nonaviation Plan Alternative Mitigation Improvements 8 38 Table 8.3 4 Traffic Noise Model Results Existing Conditions 8 46
Table 8.3 5 Traffic Noise Model Results Existing Plus ETRPA Nonaviation Plan Existing Segments With 1.5 dB or Higher Traffic Noise Increase 8 50

County of Change EIR No 573 xxi Table of Contents 22
22 Page 23 24
Table 8.3 6 Traffic Noise Model Results Existing Plus ETRPA Nonaviation Plan New Segments 8 51
Table 8.3 7 Year 2020 No Project vs Existing No Project Conditions Existing Segments With 1.5 dB or Higher Traffic Noise Increase 8 52
Table 8.3 8 Traffic Noise Model Results Year 2020 No Project Condition New Segments 8 56
Table 8.3 9 Traffic Noise Model Results Year 2020 With ETRPA Nonaviation Plan vs
Year 2020 No Project ALl Segments 8 57 Table 8.3 10 Traffic Noise Model Results Comparison Number of Segments With Traffic

Noise Increase Over Existing No Project Condition 8 62 Table 8.3 l1 Traffic Noise Model Results Comparison Number of Segments With Traffic
Noise Increase Year 2020 ETRPA Nonaviation Plan vs Year 2020 No Project .8 63 Table 8.3 12 Year 2020 ETRPA Nonaviation Plan Alternative Project Direct Air Pollutant
Emissions Pounds Day 8 66
Table 8.3 13 Year I998 Existing Conditions Plus ETRPA Nonaviation Plan Predicted OneHour Ambient Carbon Monoxide Concentration for Intersections with the Highest

Volume and Worst Level of Service LOS 8 68 Table 8.3 14 Year 1998 Existing Conditions Plus ETRPA Nonaviation Plan Predicted
Eight Hour Ambient Carbon Monoxide Concentration for Intersections with the Highest Volume and Worst Level of Service LOS 8 69
Table 8.4 1 Trip Generation Summary Alternative A 8 86 Table 8.4 2 Summary Comparison of Traffic Impacts for Alternative A to Existing
Conditions and Existing Conditions Plus Project 8 87 Table 8.4 3 Land Use Comparison with Noise Contours for 1998 Military and Year 2020
Alternatives for El Toro 8 89 Table 8.4 4 Land Use Comparison with Noise Contours for 1998 and Year 2020
Alternatives for John Wayne Airport 990 Table 8.4 5 Year 2020 Alternative A Project Direct Air Pollutant Emissions
Pounds Day 8 9 2 Table 8.4 6 Regionwide Emissions Inventory Alternative A 2020 8 93
Table 8.4 7 Year 2020 Alternative A Predicted One Hour Ambient Carbon Monoxide Concentrations 8 95
Table 8.4 8 Year 2020 Alternative A Predicted Eight Hour Ambient Carbon Monoxide Concentrations 8 9 6
Table 8.5 1 Trip Generation Summary Alternative C 8 108 Table 8.5 2 Summary Comparison of Traffic Impacts for Alternative C to Existing
Conditions and Existing Conditions Plus Project 8 109 Table 8.5 3 Alternative C Impact Summary 8 l 10
Table 8.5 4 Year 2020 Alternative C Project Direct Air Pollutant Emissions Pounds Day 8 l 13
Table 8.5 5 Year 2020 Alternative C Predicted One Hour Ambient CO Concentrations 8 114
Table 8.5 6 Year 2020 Alternative C Predicted Eight Hour Ambient CO Concentrations 8 l 15 Table 8.6 1 Trip Generation Summary Alternative F 8 127

Table 8.6 2 Summary Comparison of Traffic Impacts for Alternative F to Existing Conditions and Existing Conditions Plus Project 8 128

Table of Contents xxii County of Orange EIR No 573 23
23 Page 24 25

Table 8.6 3 Year 2020 Alternative F Project Direct Air Pollutant Emissions
Pounds Day 8 131 Table 8.6 4 Regionwide Emissions Inventory Alternative F 2020 Pounds Day

Unless Noted 8 132
Table 8.6 5 Year 2020 Alternative F Pollutant Concentrations JWA Worst Case Operations and Meteorology 8 133

Table 8.6 6 Year 2020 Alternative F Predicted One Hour Ambient CO Concentrations 8 l 34
Table 8.6 7 Year 2020 Alternative F Predicted Eight Hour Ambient CO Concentrations .8 135 Table 8.7 1 Trip Generation Summary Alternative G 8 147

Table 8.7 2 Summary Comparison of Traffic Impacts for Alternative G to Existing Conditions and Existing Conditions Plus Project 8 148
Table 8.7 3 2020 Alternative G Project Direct Air Pollutant Emissions pounds day 8 15 1 Table 8.7 4 Regionwide Emissions Inventory Alternative G 2020 Pounds Day Unless
Noted 8 153 Table 8.7 5 2020 Alternative G Pollutant Concentrations JWA Worst Case Operations
and Meteorology 8 154 Table 8.7 6 Year 2020 Alternative G Predicted One Hour Ambient CO Concentrations 8 155
Table 8.7 7 Year 2020 Alternative G Predicted Eight Hour Ambient CO Concentrations .8 156 Table 8.9 1 Summary of Arrivals by Type of Aircraft Impacted by Short V Alternative
Airport Runway Layout at OCX in 2020 8 180 Table 8.9 2 Summary of Impact Short V Alternative Airport Runway Layout on
Projected Aircraft Arrivals at OCX in 2020 8 181 Table 8.10 1 Nonaviation Revenue Support Area Alternative 1
8 190
Table 8.10 2 Nonaviation Revenue Support Area Alternative 2 8 196
Table 8.13 1 Comparison of Key Impacts of Alternatives Relative to the Proposed Project 8 209

County of Orange EIR No 573 Table of Contents 24
24 Page 25 26
LIST OF FIGURES
All Figures are bound separately in the Graphics Volume in the order listed below therefore no page numbers are included in the listing below

Figure I l Planning Areas at MCAS El Toro
Figure 2 l 1996 Community Reuse Plan for MCAS El Toro
Figure 2 2 Air Service Area and Airports
Figure 2 3 Distance of Domestic Markets from Orange County
Figure 2 4 Air Passenger Demand Forecasts in ASA 1970 2020
Figure 2 5 Air Cargo Demand Forecasts in ASA 1975 2020 Figure 3 1 The Proposed Project at OCX Year 2020

Figure 3 2 Proposed Land Uses at o cx Year 2020
Figure 3 3 Proposed Land Uses at JWA
Figure 3 4 Proposed Development Phases for OCX Figure 3 5 Project Location Map

Figure 3 6 Regional and Local Access
Figure 3 7 Proposed Terminal Area Development at OCX
Figure 3 8 Concept of Proposed Terminal Plan
Figure 3 9 Conceptual Cross Section of Proposed Terminal and Roadway Figure 3 10 Proposed Terminal Roadways and Phasing at OCX

Figure 3 11 Trabuco ETC Interchange Option
Figure 3 12 Composite Open Space Plan
Figure 3 13 Proposed On Site Regional Park MCAS El Toro Site
Figure 3 14 Proposed General Aviation Development on East Side of JWA Figure 3 15 Proposed General Aviation Development on West Side of JWA

Figure 4.1 l Proposed Project Surrounding Jurisdictions MCAS El Toro Figure 4.1 2 Proposed JWA Project Surrounding Jurisdictions
Figure 4.1 3 Existing Land Uses in the Vicinity of the Proposed El Toro Project
Figure 4.1 4 General Plan Land Uses in the Vicinity of the Proposed El Toro Project
Figure 4.1 5 Existing Land Uses in the Vicinity of the Proposed JWA Project Figure 4.1 6 General Plan Land Uses in the Vicinity of the Proposed JWA Project

Figure 4.2 l County of Orange General Plan Designations MCAS El Toro Figure 4.2 2 City of Irvine General Plan Designations Planning Area 30
Figure 4.2 3 City of Irvine Planning Areas Within Project Vicinity MCAS El Toro Figure 4.3 l Traffic Analysis Study Area
Figure 4.3 2 El Toro Circulation Plan
Figure 4.4 l Examples of Various Sound Levels
Figure 4.4 2 Effect of Atmospheric Absorption on Sound Levels
Figure 4.4 3 Single and Cumulative Noise Metric Definitions
Figure 4.4 4 Examples of Typical Outdoor CNEL Levels Figure 4.4 5 Speech Interference and Noise Levels

Figure 4.4 6a Causes and Prevalence of All Awakenings Figure 4.4 6b Sleep Interference and Noise Levels

TabIe of Contents County of Orange EIR No 573 25
25 Page 26 27
Figure 4.4 7 Comparison of Logistic Fits to Original 161 Data Points of Schultz 1978 and USAF Analysis with 400 Points
Figure 4.4 S 1981 AICUZ Military Noise CNEL Contours Figure 4.4 9 Historical Jet Operations at MCAS El Toro
Figure 4.4 l 0 Runway and Corridor Names Figure 4.4 11 Flight Tracks for Military Operations for Calendar Year 1998
Figure 4.4 12 Calendar Year 1998 Military Noise Contours CNEL 60 65 and 70 dB Figure 4.4 13 Specific Point Receptor Locations Used for the Detailed Analysis
Figure 4.4 14 SENEL 85 dB Contours for F8 Operations Figure 4.4 15 JWA Existing Flight Tracks
Figure 4.4 16 JWA 1998 Contours CNEL 60 65,70 and 75 dB Figure 4.4 l 7 JWA Noise Monitoring Locations
Figure 4.4 18 SENEL 85 dB Contours for Various Aircraft Departures at JWA Figure 4.4 19 SENEL 85 dB Contours for Arrivals at JWA
Figure 4.4 20 JWA 1985 Master Plan CNEL 60 65 70 and 75 dB Figure 4.4 2 I Federal Air Regulation Part 150 Land Use Guidelines
Figure 4.4 22 Proposed Project 2020 Operations by Time of Day Figure 4.4 23 Proposed Project 2020 Operations by Runway
Figure 4.4 24 Proposed Project 2020 Operations by Aircraft Type Figure 4.4 25 Typical Aircraft Departure Noise Levels
Figure 4.4 26 Typical Aircraft Arrival Noise Levels Figure 4.4 27 El Toro Generalized Civilian Flight Tracks and Existing Buffer Zone
Figure 4.4 28 Typical JWA Track Dispersion Overlaid on OCX Figure 4.4 29 Flight Tracks at OCX for the Proposed Project
Figure 4.4 30 Aircraft Altitude Profiles Runways 34 Departures Figure 4.4 3 1 Aircraft Altitude Profiles Runways 07 Departures
Figure 4.4 32 Aircraft Altitude Profiles Runways 34 Arrivals Figure 4.4 33 El Toro Average Wind Speed and Direction by Quadrant
Figure 4.4 34 Proposed Project 2020 CNEL 60,65 and 70 dB Contours Figure 4.4 35 Proposed Project 2005 CNEL 60 65 and 70 dB Contours
Figure 4.4 36 Proposed Project 2010 CNEL 60 65 and 70 dB Contours Figure 4.4 37 Proposed Project 2015 CNEL 60 65 and 70 dB Contours
Figure 4.4 38 SENEL 86 dB Contours for Various Aircraft for Runway 34 Departures Figure 4.4 39 SENEL 86 dB Contours for Various Aircraft for Runway 07 Departures
Figure 4.4 40 SENEL 86 dB Contours for Various Aircraft for Runway 34 Arrivals Figure 4.4 41 SENEL 86 dB Contours for Various Aircraft for Arrivals on Runway 16 and
Departures on Runway 34 Figure 4.4 42 Single Event Histograms and Bar Charts for 2020 for the Proposed Project
Figure 4.4 43 JWA 2020 CNEL Contours 60,65 and 70 dB Under the Proposed Project Figure 4.4 44 2020 No Project Alternative CNEL 60 65 and 70 dB at JWA
Figure 4.4 45 Proposed Project 2020 Combined Aircraft and Road Noise CNEL Contours at OCX
Figure 4.4 46 Proposed Project 2020 Combined Aircraft and Road Noise CNEL Contours at jwa
Figure 4.4 47 Noise Abatement Takeoff Procedures Example
County of Orange EIR No 573 Table of Contents 26
26 Page 27 28
Figure 4.4 48 Mitigation Alternative 1 Night Preferential Runway System Figure 4.4 49 Mitigation Alternative 2 Full Curfew CNEL Contours
Figure 4.4 50 Mitigation Alternative 3 Night 86 SENEL Limit Figure 4.4 5 1 Mitigation Alternative 4 Runway 34 Right Turn CNEL Contours and Flight
Tracks Figure 4.4 52 Conceptual Noise Monitoring Locations at OCX
Figure 4.5 1 CO Hot Spot Modeling Locations Existing Condition Figure 4.5 2 EDMS Dispersion Receptor Locations MCAS El toro
Figure 4.5 3 EDMS Dispersion Receptor Locations JWA Figure 4.5 4 Year 2020 Emissions Projection Summary
Figure 4.5 5 CO Hot Spot Modeling Locations Existing Plus Alternative B Condition Figure 4.5 6 CO Hot Spot Modeling Locations 2020 No Project
Figure 4.5 7 CO Hot Spot Modeling Locations 2020 Alternative B change to Proposed Project Figure 4.5 8 EDMS Dispersion Receptor Locations o cx
Figure 4.6 l Topographical Analysis of MCAS El Toro Figure 4.6 2 Topographical Analysis of John Wayne Airport
Figure 4.6 3 Rough Grading Plan Figure 4.7 1 Geologic Map of MCAS El Toro
Figure 4.7 2 Expansivity Index of Soils at MCAS El Toro Figure 4.7 3 Generalized Depth to Shallow Groundwater Aquifer at MCAS El Toro Irvine
Sub Basin Figure 4.7 4 Earthquake Epicenter and Fault Map of Southern California
Figure 4.7 5 Expansivity Index of Soils at JWA Figure 4.7 6 Generalized Depth to Shallow Groundwater at JWA
Figure 4.8 l Project Area Drainage Network Figure 4.8 2 Flood Plain Map Existing Conditions at MCAS El Toro
Figure 4.8 3 Existing Hydrology MCAS El Toro Figure 4.8 4 Water Quality Outfalls Under Existing Conditions at MCAS El Toro
Figure 4.8 5 Project Area Groundwater Elevations Figure 4.8 6 Existing Hydrologic Conditions at JWA
Figure 4.8 7 Flood Plain Map Existing Conditions John Wayne Airport Figure 4.8 8 Flood Plain Map Under the Proposed Project at MCAS El Toro
Figure 4.8 9 Backbone Storm Drain System Under the Proposed Project at MCAS El Toro
Figure 4.9 l Existing Uses in the Federal Habitat Reserve Figure 4.9 2 Central and Coastal Subregion of the NCCP
Figure 4.9 3 NCCP Vegetation Communities on the MCAS El Toro Site Figure 4.9 4 NCCP Vegetation Communities in the Federal Habitat Reserve Including

Gnatcatcher and Cactus Wren Locations Figure 4.9 5 NCCP Vegetation Communities and Special Interest Plant Species at JWA and
Vicinity Figure 4.9 6 Special Interest Wildlife Species at JWA and Vicinity
Figure 4.9 7 Noise Receptor Locations for Biological Resources Figure 4.9 8 1981 AICUZ Proposed Project Noise Exposure with Biological Resources 1998
Bum Area at MCAS El Toro
Table of Contents xxvi County of Orange EIR No 573 27
27 Page 28 29

Figure 4.9 9 1998 65 CNEL Noise Contour with Biological Resources at JWA
Figure 4.9 10 Proposed Project 65 CNEL Noise Exposure with Biological Resources at j wa Figure 4.10 l Existing Setting at MCAS El Toro Public Services

Figure 4.1 O 2 Irvine and Saddleback Valley Unified School Districts Figure 4.1 O 3 Existing Transit Routes Serving Project Zones
Figure 4.1 O 4 Transit Routes and Facilities Figure 4.10 5
Proposed Backbone Cable Television and Fiber Optic Facilities Figure 4.1 O 6 Proposed Backbone Communications Distribution Facilities

Figure 4.1 O 7 Proposed Backbone Electrical Distribution Facilities Figure 4.1 O 8 Proposed Fuel Supply System For o cx
Figure 4.10 g Potential Bulk Fuel Storage Facility With Fuel Supplied by Truck
Figure 4 IO 10 Proposed Backbone Natural Gas Facilities Figure 4.1 O 1 1 Proposed Backbone Domestic Water Facilities

Figure 4.10 12 Proposed Backbone Recycled Water Facilities Figure 4.1 O 13 Proposed Backbone Sanitary Sewers
Figure 4.12 1 Visual Character Areas Figure 4.12 2 Viewshed Vantage Points
Figure 4.12 3 Vantage Point 8 Visual Simulation MCAS El Toro Site Figure 4.12 4 Vantage Point 9 Visual Simulation MCAS El Toro Site
Figure 4.12 5 Vantage Point 10 Visual Simulation MCAS El Toro Site
Figure 4.12 6 Vantage Point 11 Visual Simulation MCAS El Toro Site Figure 4.14 1 Regional Recreational Facilities

Figure 4.14 2 County Bikeways and Regional Riding and Hiking Trails
Figure 4.14 3 City of Irvine Conservation and Open Space Map Figure 4.14 4 City of Irvine Trails Map

Figure 4.14 5 City of Lake Forest Planned Bikeways Map
Figure 4.14 6 City of Lake Forest Open Space Map Figure 4.14 7 Proposed On Site Regional Park MCAS El Toro Site

Figure 4.14 8 Proposed Golf Courses MCAS El Toro Site Figure 4.14 9 Project Aviation Noise Impacts on Recreational Facilities
Figure 4.14 l 0 Project Aviation Noise Impacts on County Bikeways and Regional Riding and
Hiking Trails
Figure 4.15 l Off Site Accident Locations at MCAS El Toro Figure 4.15 2 Aircraft Accident Rates at
MCAS El Toro from 1966 to 1998 Figure 4.15 3 Existing MCAS El Toro Accident Potential Zones

Figure 4.15 4 Commercial Aircraft Accident Rates for 1967 to 1998
Figure 4.15 5 General Aviation Accident Rates for 1977 to 1998 Figure 4.15 6 Proposed o cx Arrival and Departure Routes

Figure 4.15 7 Plot of Commercial Aircraft Landing Accidents Incidents Relative to Runway Figure 4.15 8 Percent of Landing Accidents Incidents by Distance From Runway Approach End
Figure 4.15 9 Plot of Commercial Aircraft Departure Accidents Incidents Relative to Runway Figure 4.15 10 Percent of Departure Accidents Incidents by Distance From Runway Approach
End Figure 4.15 l 1 Air Safety Zones Proposed for o cx
Figure 4.16 l Installation Restoration Program Sites at MCAS El Toro
County of Orange EIR No 573 xxull Table of Contents 28
28 Page 29 30
Figure 4.16 2 Proposed Project With Existing Hazardous Waste Sites MCAS El Toro Figure 4.17 l Project Sites Surrounding Area and Orange County
Figure 8 l Alternative A Figure 8 2 Alternative A Year 2020 CNEL 60 65 and 70 dB
Figure 8 3 Alternative C Figure 8 4 Alternative C Year 2020 CNEL 60,65 and 70 dB
Figure 8 5 Alternative F Figure 8 6 JWA Year 2020 Alternative F CNEL Contours 60 65 and 70 dB
Figure 8 7 Alternative G Figure 8 8 JWA Year 2020 Alternative G CNEL Contours 60 65 and 70 dB
Figure 8 9 Alternative J Figure 8 10 Alternative J Year 2020 CNEL 60,65 and 70 dB
Figure 8 1Ia Nonaviation Revenue Support Area Alternative 1 Figure 8 l1b Nonaviation Revenue Support Area Alternative 2
Figure 8 12 Wildlands Ranch Plan Alternative Presented April 7 1999 Figure 8 12a Wildlands Ranch Plan Alternative 1
Figure 8 12b Wildlands Ranch Plan Alternative 2 Figure 8 13 Nonaviation Alternative

Table of Contents xxvii County of Orange EIR No 573 29
29 Page 30 31

LIST OF ACRONYMS

AAM AB
ACMs
ACOE ADAP

ADDs ADG
ADPM
ADT AELUP

AFRC AHIP
AICUZ ALP
ALPA ALUC
AMP ANCA
ANG
AOC AOU

APSA APZ
AQMD AQMP
ARC
ARB ARFF

ASA
ASMP ASR

AST ASTM
ASV ATC
ATCT AVAP
AVGAS

Annual arithmetic mean
Assembly Bill
Asbestos containing building materials United States Army Corps of Engineers

Airport Development Aid Program
Average daily departure Aircraft design group

Average day of the peak month Average daily Traffic
Airport Environs Land Use Plan Armed Forces Reserve Center
Affordable Housing Implementation Plan Air Installation Compatible Use Zone
Airport Layout Plan
Airline Pilots Association Orange County or Local Airport Land Use Commission

Airport Master Plan Airport Noise and Capacity Act
California Air National Guard Areas of concern
American Ornithologists Union
Aboveground Petroleum Storage Act Accident potential zone

South Coast Air Quality Management District Air Quality Management Plan
Airport reference code
Air Resources Board Aircraft rescue and fire fighting

Air service area
Airport System Master Plan Airport surveillance radar

Aboveground storage tanks American Society of Testing Methods
Annual service volume
Airport Transportation Center Air traffic control tower

Airport Vicinity Air Pollutions model Aviation gasoline

County of Orange EIR No 573 List of Acronyms 30
30 Page 31 32
Basin
BCP BCT

BEQ BMPs
BOQ BRAC

CAA CAA
CAAQS
CAC CalEPA

Caltrans
CARB
CCAA ccfh

CCR CDF
CDFG CDMG

CEQ CEQA
CERCLA

CERFA cfh
CFR
CHP CMP
CNEL CNPS
c o
co2 COA

COPC CRP

c s s

South Coast Air Basin Base Cleanup Plan
Base Cleanup Team Bachelor Enlisted Quarters
Best Management Practices
Bachelor Officer Quarters Base Realignment and Closure

Community Analysis Area
Federal Clean Air Act California ambient air quality standards

El Toro Citizens Advisory Commission California Environmental Protection Agency
California Department of Transportation
California Air Resources Board California Clean Air Act

hundred cubic feet per hour California Code of Regulations
State of California Department of Finance also DOF California Department of Fish and Game
California Department of Mines and Geology Council on Environmental Quality
California Environmental Quality Act Comprehensive Environmental Response Compensation
and Liability Act Community Environmental Response Facilitation Act
Cubic feet per hour Code of the Federal Regulations
Cubic feet per second California Highway Patrol
Congestion Management Plan
Community Noise Equivalent Level California Native Plant Society

Carbon monoxide Carbon dioxide
Condition s of Approval Chemical s of potential concern
Community Reuse Plan Coastal sage scrub

List of Acronyms County of Orange EIR No 573 31
31 Page 32 33

DAMP dB
dBA DBCRA
DFG
DNL DOD

DOI DUN
DOT DRMO
DU
du ac

EBS
EDD EDMS

EIR EIS
EMA EMA
EO EOD
EPA ESA
ETC
ETRF'A ETSAM

FAA FAAEED
FAR FBOs
FCLP FEIR
FEMA FFA
FHWA FICON
FIRE FIRM
FS FTC

Drainage Area Management Plan
decibel A weighted decibel scale

Defense Base Closure and Realignment Act
California Department of Fish and Game
Day night average sound level United States Department of Defense

United States Department of Interior
United States Department of Navy United States Department of Transportation

Defense Reutilization Market Office
Dwelling unit Dwelling units per acre

Environmental Baseline Survey
State of California Economic Development Department Emission and Dispersion Modeling System

Environmental Impact Report Environmental Impact Statement
County of Orange Environmental Management Agency
Engine Manufacturers Association Environmental Officer

Explosive Ordnance Disposal United States Environmental Protection Agency
Endangered Species Act Eastern Transportation Corridor also referred to as Eastern Toll
Road and Eastern Tollway El Toro Reuse Planning Authority
El Toro Sub Area Model
Federal Aviation Administration FAA Engine Emission Database
Federal Aviation Regulations Fixed base operators
Field carrier landing practice
Final EIR Federal Emergency Management Agency

Federal Facilities Agreement Federal Highway Administration
Federal Interagency Committee on Noise Finance insurance and real estate
FEMA Flood Insurance Rate Map Feasibility study
Foothill Transportation Corridor

County of Orange EIR No 573 List of Acronyms 32
32 Page 33 34
GA
GANO GCAs

GIS GMP

gmp GMPP
GPA
gpd GSE

HBP HC
HCA HCM
HCP HNL
HOV
HRA HUD

HVAC HWSA
HZ
IASZ
IBC ICF

ICS IFR
INM
IRP
IRS IRWD

ISR ITC
IUSD I 5
I 405

JPA JP5
JWA

General Aviation
General Aviation Noise Ordinance
Ground controlled approaches Geographic Information System

Growth Management Plan Gallons per minute
Growth Management Phasing Plan
General Plan Amendment Gallons per day

Ground Support Equipment
County of Orange Harbors Beaches and Parks Department
Hydrocarbons Health Care Agency

Highway Capacity Manual Habitat Conservation Plan
Hourly Noise Level High occupancy vehicle
Historic Radiological Assessment United States Department of Housing and Urban Development
Heating ventilation and air conditioning Hazardous Waste Storage Area
Hertz
Inner Approach Safety Zone Irvine Business Complex
Interim care facility Incident Command System
Instrument flight Rules Integrated Noise Model
Installation Restoration Program Installation Restoration Sites
h vine Ranch Water District Indirect Source Rule
Irvine Transportation Center Irvine Unified School District
Interstate 5
Interstate 40 5

Joint Powers Agreement or Authority
Jet petroleum fuel or jet propellant John Wayne Airport

List of Acronyms County of Orange EIR No 573 33
33 Page 34 35

KV KW
LAFCU
LAX
LEMO

LEQ LI

Ln LOC

LOS LRA
LTO LUCP
LUFT
MAP MCAS
MCL MD
MDF MDP
MEA MGD

mpg MPAH
msf
MSL MWD

MWRP MWTP

NAS NAS
NASP NAVFACENGCOM
NCCP NEPA
NFPA NFPC

NOx
NO2 NOP

NPDES NPIAS

Kilovolt Kilowatt
Local Agency Formation Commission
Los Angeles International Airport
Local emergency management organization Equivalent noise level

Light industrial Percent noise level
Locations of concern Level of service
Local Redevelopment Authority
Landing Takeoff Operation
Land Use Compatibility Program Leaking underground fuel tank

Million annual passengers Marine Corps Air Station
Maximum contaminant levels McDonnell Douglass
Main distribution frame Master Development Program
Master Environmental Assessment
Million gallons per day Mitigation Monitoring Program

Miles per gallon Master Plan of Arterial Highways
Million square feet Mean sea level
Metropolitan Water District of Southern California
Michelson Water Reclamation Plant Michelson Wastewater Treatment Plant

National Audubon Society
Naval Air Station National Airport System Plan

Naval Facilities Engineering Command Natural Communities Conservation Plan
National Environmental Policy Act National Fire Protection Association
National Fire Protection Code Nitrogen oxides
Nitrogen dioxide
Notice of Preparation National Pollutant Discharge Elimination System

National Plan of Integrated Airport Systems

County of Orange EIR No 573 List of Acronyms 34
34 Page 35 36
NPL NRHP
NRPS NTSB

O2 O3
O M
OASZ OCFA

OCFCD
OCX OCP

OCPL
OCTA OCTAM

OCWD
OEA

OFZ
OPQ OSHA

OU

PA
PCB PCE

PGP PIL

PM10 POTW
ppB ppd
ppm PRC
psi PUC

R D RAB
RAC RCB
RCRA

National Priorities List
National Register of Historic Places National Resources Conservation Service

National Transportation Safety Board
Oxygen Ozone
Operations and management
Outer Approach Safety Zone Orange County Fire Authority

Orange County Flood Control District
Proposed Orange County International Airport Orange County Preferred demographic projections

Orange County Public Library
Orange County Transportation Authority Orange County Traffic Analysis Model

Orange County Water District United States Department of Defense Office of
Economic Adjustment Obstacle free zones
Other public quarters Occupational Safety and Health Administration
Operable units
Planning Area
Polychlorinated biphenyl Perchloroethylene

Planning Grant Program Policy Implementation Line
Particulate matter
Publicly owned treatment works Parts per billion

Pounds per day Parts per million
Public Resources Code Pounds per square inch
Public Utilities Commission
Research and development Restoration Advisory Board
Rent A Car Reinforced concrete box
Resource Conservation and Recovery Act

List of Acronyms County of Orange EIR No 573 35
35 Page 36 37
RECLAIM RFA
RI ROD
ROFA
RON RPZ

RSA RTP
RWQCB
SA SB
SCAG SCE
SCGC SCCRA
SCAQMD
SEL SEMS

SENEL
SAIC SHPO

SID
SIP SJHTC

SOx SPON
SR SRP

SVE SVP
SVUSD SWDIV
SWMU SWPPP
SWRCB
TA TAA
TAC TAZ
TCA TCE
TERPS TR

County of Orange EIR No 573

Regional Clean Air Incentives Market RCRA Facility Assessment
Remedial Investigation Record of Decision
Runway Obstacle Free Area
Aircraft remain overnight parking Runway Protection Zone

Regional Statistical Area Regional Transportation Plan
Regional Water Quality Control Board
Service Area Senate Bill
Southern California Association of Governments Southern California Edison
Southern California Gas Company Southern California Commuter Rail Authority
South Coast Air Quality Management District Single event noise level
Standard Emergency Management Plan Single event noise exposure level
Science Applications International Corporation
State Historic Preservation Officer Standard Instrument Departure

State Implementation Plan San Joaquin Hills Transportation Corridor
Sulfur oxides Stop Polluting Our Newport
State Route
Scientific Review Panel Soil vapor extraction

Society of Vertebrate Paleontologists Saddleback Valley Unified School District
Southwest Division of the United States Department of the Navy
Solid waste management use Storm Water Pollution Prevention Plan

State Water Resources Control Board
Time above Temporary accumulation areas
Toxic Air Contaminant Aircraft Analysis Zone
Transportation Corridor Agencies Trichloroethane
United States Standard for Terminal Instrument Procedures Technical Report

List of Acronyms
LOA 7 36
36 Page 37 38
TRACON
TRP TSP

UBC UC
UFC USAF
USDA USFWS
USGS USN
UST
V C VCP
VFR VMT
VOCS VPD
VPDPL
WAN WQMP

zc

List of Acronyms

Terminal Radar Control Taxpayers for Responsible Planning
Total suspended particulates
Uniform Building Code University of California
Uniform Fire Code United States Air Force
United States Department of Agriculture United States Fish and Wildlife Service
United States Geologic Survey U S Department of Navy also DON
Underground storage tanks
Volume to capacity ratio Vitrified clay pipes
Visual flight rules Vehicles miles traveled
Volatile organic compounds Vehicles per day
Vehicles per day per lane
Wide area network Water Quality Management Plan

Zone change

County of Orange EIR No 573
LM 8 37
37 Page 38 39
1.1.1
1 .0 SUMMARY AND INTRODUCTION
GENERAL INTRODUCTION
Proposed Project
This document is County of Orange Draft Environmental Impact Report No 573 EIR No 573 for various actions related to the approval adoption and implementation including construction
and operation of 1 an Airport System Master Plan for Orange County ASMP published separately as Draft Airport System Master Plan for John Wayne Airport and Proposed Orange
County International Airport December 1999 and 2 a Base Transition Plan BTP for former
Marine Corps Air Station MCAS El Toro El Toro or the base published separately as Draft Base Trnasition Plan November 9 1999 BTP

EIR No 573 has been prepared under and in compliance with the requirements of the California Environmental Quality Act CEQA and regulations of the State and County including the
CEQA Guidelines Guidelines and the County's adopted policies implementing CEQA
Specifically the Proposed Project consists of an ASMP which contemplates a two airport system in Orange County with commercial air carrier and general aviation support occurring
both at JWA and OCX The ASMP is a combined development and operations plan which has three principal components

an Airport Master Plan for the development and operation of an international commercial air carrier airport at the El Toro site OCX

i i a land use development plan for El Toro including various nonaviation activities that are airport compatible public uses or public or private uses which would provide revenue
support to the development and operation of aviation infrastructure and

iii an Airport Master Plan for John Wayne Airport Orange County JWA Orange County's current commercial air carrier airport

The principal purposes of the BTP are to define the caretaker activities anticipated by the County until it acquires title to the base property at El Toro and to plan for and make use of certain
existing buildings and facilities for civilian nonaviation interim uses until they are required for or demolished to accommodate construction and implementation of the ASMP The BTP would
be implemented by a master lease or comparable agreement between the County of Orange and the Department of Navy

Collectively the ASMP and the BTP are sometimes referred to in this EIR as the Project or the Proposed Project

County of Change EIR No 573 Summary and Introduction
l 1 38
38 Page 39 40
1.2 HISTORY AND BACKGROUND
1.2 1 MCAS El Toro
MCAS El Toro consists of approximately 4,700 acres in central Orange County adjacent to the convergence of Interstate 5 I 5 Interstate 405 I 40 5 and State Route 133 SR 133 Most of
the MCAS El Toro site is within the unincorporated territory of the County of Orange A small portion of the site approximately 342 acres is within the incorporated boundary of the City of
Irvine
Construction of MCAS El Toro began in July 1942 The facility was initially built as a wartime expedient air station for the purpose of aircraft squadron formation and unit training prior to
overseas combat deployment It was commissioned on March 17 1943 In 1950 MCAS El Toro was selected for development as a Master Jet Air Station and the permanent center of
Marine aviation on the west coast of the United States Its mission was to support the operations and combat readiness of Fleet Marine Forces In 1955 the Third Marine Aircraft Wing
Headquarters relocated to El Toro from Miami Florida to become the primary tenant Between 1971 and 1999 the Marine Air Reserve under the command of the 4th Marine Air Wing
conducted reserve training operations at El Toro Throughout the years the support and training capabilities of MCAS El Toro steadily increased peaking in its pre 1994 role as the largest
Marine air installation in the western United States
The closure of MCAS El Toro as a military facility is part of the federal 1993 Base Realignment and Closure BRAC process The County of Orange Board of Supervisors was designated on
April 5 1995 as the Local Redevelopment Authority LRA for the civilian reuse of former Marine Corps Air Station MCAS El Toro by the United States Department of Defense DOD
Office of Economic Adjustment OEA On December 11 1996 after certification of County of Orange EIR No 563 the Board of Supervisors approved a Community Reuse Plan CRP for
El Toro and forwarded it to the U S Department of Housing and Urban Development HUD and DOD for consideration and approval under the federal Base Realignment and Closure
BRAC statutes and regulations and for review under the National Environmental Policy Act NEPA When it approved the Community Reuse Plan the Board of Supervisors also directed
the initiation of second tier planning studies for the reuse of El Toro consistent with the reuse plan and the specific planning direction provided by the Board in Resolution LRA 96 02 EIR
No 573 has been prepared to provide available information regarding the environmental impacts and consequences of the County's reuse project as it has more specifically been defined by this
second tier planning
Operational closure of the base occurred on July 2 1999 The facility is still in federal ownership pending completion of an Environmental Impact Statement EIS and Record of
Decision pursuant to the requirements of NEPA for the disposal and reuse of MCAS El Toro Currently under the terms of a Cooperative Agreement between the United States Department of
Navy DON and the County of Orange the County of Orange is maintaining MCAS El Toro Additionally various recreational restaurant and office facilities are being operated by the
County under an interim Community Services Program lease between the County and DON

Summary and Introduction County of Orange EIR No 573 39
39 Page 40 41
1.2.2 John Wayne Airport
John Wayne Airport is owned and operated by the County of Orange and is currently the only commercial service airport in Orange County It is located approximately eight miles west of
MCAS El Toro immediately adjacent to and south of I 405 and east of State Route 55 SR 55 The property currently encompasses approximately 504 acres of land including the airfield

terminal various surface level and parking structures and a portion of the Newport Beach golf course

JWA originated as a private landing strip built in the 1920's by aviation pioneer Eddie Martin JWA became a publicly owned facility in 1939 After serving as a military base during World
War II it was returned by the federal government to the County with a stipulation that it remain open to all kinds of aviation uses In 1967 the 22,000 square foot Eddie Martin Terminal was
built Remodeling added two passenger holding areas in 1974 a new baggage claim area in 1980 and a terminal annex building in 1982 bringing the facility to 29,000 square feet In 1987
construction began on the JWA Improvement Project and on September 16 1990 the new 337,900 square foot Thomas F Riley Terminal opened to the public The terminal is served by a
two level circulating roadway system three parking structures and an off airport parking lot
In an effort to operate JWA in an environmentally sensitive manner the County of Orange has developed one of the most stringent access and noise abatement programs in the country The
Airport monitors all aircraft operations both commercial and private for compliance with the program During Phase 1 of the Access Plan February 26 1985 to September 30 1990 a
maximum of 4.75 million annual passengers MAP could be served and a maximum of 55 Class A and AA average daily departures ADDs were allowed The Phase 2 Access Plan
October 1 1990 to December 3 I 2005 allows 73 noise regulated ADDs and 8.4 MAP

1.3 RELATIONSHIP TO EIR NO 563

Environmental Impact Report No 563 was a first tier EIR prepared at a conceptual level of detail to provide environmental analysis for a proposed community reuse plan for El Toro A
Supplemental Analysis to EIR No 563 was also prepared and circulated with reference to the adopted Community Reuse Plan in response to a writ of mandate of the San Diego Superior
Court and was certified by the Board of Supervisors on November 9 1999 As supplemented EIR No 563 provides a complete and adequate assessment of the environmental impacts of the
adopted Community Reuse Plan as those impacts could be reasonably identified and analyzed at the first tier of reuse planning

EIR No 573 has been prepared for the second more specific tier of the County's reuse planning which has resulted in a Proposed Project defined by the ASMP and the BTP EIR No 573 has
been prepared as a program EIR pursuant to CEQA Guidelines Section 15168 The EIR text appears in three volumes identified as Volumes 1 2A and 2B All of the EIR graphics are
contained in a separate volume identified as Volume 3
As a result of its second tier reuse planning for El Toro and consistent with Planning guidance and direction provided by the Board of Supervisors in December 1996 the County is now

County of Orange EIR No 573 Summary and Introduction 1 4 40
40 Page 41 42
proposing the approval adoption and implementation including construction and operation of an ASMP for Orange County and a BTP for El Toro For purposes of its second tier planning
the County has divided the existing base area of MCAS El Toro into eight planning areas Those areas are shown on Figure l l The graphics for this EIR are in a separate volume Within each
planning area the general land uses proposed by the ASMP are shown by parcel number on Figure 3 2 of this EIR Table 3 8 in Chapter 3 presents a detailed list of all three components of
the ASMP Both the ASMP and the BTP have been made available for public review concurrently with this EIR and they contain additional detail regarding the circumstances related
to and the proposals constituting the Proposed Project
The ASMP is a substantially more detailed and specific level of project planning than the firsttier planning effort which resulted in the CRP The ASMP contemplates a significantly smaller
airport facility at El Toro sometimes referred to in the ASMP and in this EIR as OCX than was contemplated by the CRP A graphic representation of the portion of the ASMP that would
be implemented and operated at the site of former MCAS El Toro is provided in Figure 3 1 A graphic representation of the JWA portion of the ASMP is presented in Figure 3 3 Consistent
with planning guidance from the Board of Supervisors the ASMP proposes the continued use of JWA as a commercial airport and that OCX and JWA would together be used to meet Orange
County's forecasted air passenger and air cargo demand
In order to facilitate continuity in the planning and environmental review process each section of Chapter 4 of EIR No 573 provides a summary of the conclusions on each impact category topic
in EIR No 563 and where relevant the EIR No 563 Supplemental Analysis Although this is a second tier EIR for the reuse of El Toro the EIR generally presents a self contained analysis of
the proposed ASMP and BTP project with minimum reference to EIR No 563 for the following reasons

l The ASMP project reflects second tier planning that has had the effect of refining the project
in significant ways

The ASMP proposes the continued use of John Wayne Airport for commercial
Operations The Community Reuse Plan had assumed that all commercial service in Orange County would be accommodated at El Toro

Both as a result of the assumed continued commercial activity at JWA and as a result of refined and more detailed aviation forecasts prepared for the master plan level of
planning the forecast commercial passenger activity at El Toro under the ASMP is Substantially less than was forecast for OCX under the Community Reuse Plan The
Community Reuse Plan forecast and EIR No 563 analyzed a passenger service level at OCX in the year 2020 of 38.3 million annual passengers MAP The ASMP forecasts
that OCX would serve 28.8 MAP in the year 2020 and JWA would serve 5.4 MAP for a total of 34.2 MAP served at Orange County airports by year 2020

The proposed land uses at OCX not directly related to aviation activities nonaviation revenue support uses generally have been reduced substantially in intensity

Summary and Introduction County of Orange EIR No 573 41
41 Page 42 43
These refinements at the second tier of planning have had a substantial effect in reducing many of the previously identified or anticipated environmental impacts of the project
l Some of the base information relevant to the existing environmental setting and projected
future growth in the County and the region has been updated since EIR No 563 was finalized Demographic information and projections have been updated where relevant to the

analysis of the environmental consequences of the project
It is a goal of the County in preparing EIR No 573 to facilitate the ability of the public to review and understand the project ASMP and BTP as it is currently proposed and the environmental
consequences of the project Particularly in light of the scope of the project and the amount of relevant information regarding it the County believes that this is facilitated by presenting an
environmental analysis that is as self contained as reasonably practical Although this means that some information presented in detail in EIR No 563 and which is still relevant to the
project and its analysis is repeated in EIR No 573 repeating the information in EIR No 573 provides the reader of the EIR with helpful context and minimizes the need to refer back to EIR
No 563
EIR No 563 still provides significant information that has important value in allowing comparisons of the environmental impacts that are anticipated to result from adoption and
implementation of the ASMP and BTP second tier planning and those that EIR No 563 anticipated would result from the implementation of the adopted Community Reuse Plan
However EIR No 573 is intended to provide independently an adequate environmental analysis of the ASMP and BTP projects

AREAS OF CONTROVERSY
Substantial numbers of comments on the NOP for EIR No 573 were received the majority of which concerned issues such as the potential for noise air quality public health public safety

and traffic impacts under the Proposed Project These subjects are addressed later in Chapter 4.0 Environmental Setting Impacts and Mitigation Measures Additionally the NOP and
comments on the NOP are contained in Appendices A and B to this EIR The following is a brief synopsis of areas of controversy which have been identified for the Proposed Project

Areas of controversy related to the Proposed Project include the following
l The use of and need for MCAS El Toro as a commercial airport
l The level of aviation activity which should be served at El Toro
l Interim aviation passenger or cargo use at El Toro
l Aviation operation and safety at El Toro
l Effect on the quality of life around El Toro
l Use of JWA as the sole commercial airport in Orange County
l The level of aviation activity which should be served at JWA

County of Orange EIR No 573
l 5 Summary and Introduction 42
42 Page 43 44
The Board of Supervisors will consider the information contained in EIR No 573 the ASMP BTP and associated technical appendices and reports as well as comments received on the NOP
and Draft EIR when it ties action on the Proposed Project

1.5 ISSUES TO BE RESOLVED
Issues to be resolved for the Proposed Project include the following

l Method of delivering aviation fuel to El Toro for the project
l Adoption of noise mitigation for El Toro
l Final determinations to be made by the County of Orange as to whether benefits of the
project outweigh the unavoidable impacts of the Proposed Project identified in this EIR l Determination of the specific mitigation program necessary to offset to the degree feasible

impacts associated with implementing the project l Determination of whether any of the alternatives should be chosen over the Proposed Project
l Determination of method s to ensure long term retention of open space recreation and
agricultural uses

The Board of Supervisors will consider the information contained in EIR No 573 the ASMP BTP and associated technical appendices and reports as well as comments received on the NOP
and Draft EIR when it takes action on the Proposed Project

1 6 l ENVIRONMENTAL SETTING EXISTING
CONDITIONS

As required by CEQA this EIR presents a comparison of anticipated environmental impacts of the project against the environmental setting or existing conditions A comparison to the
No Project No Activity Alternative is also provided in or at the end of each impact category analysis in Chapter 4 of this EIR and the No Project No Activity Alternative is also analyzed in
the Alternatives Chapter of this EIR Chapter 8 Conclusions of the EIR regarding the significance of the project impacts are made with reference to the comparison of the Proposed
Project to the existing conditions case Where appropriate mitigation is analyzed both with respect to the identified existing conditions impacts and in the context of the No Project No
Activity Alternative
FEIR No 563 and the Final EIR No 563 Supplemental Analysis used 1994 95 conditions as the environmental setting the last full year for which relevant data were available at the time the
environmental analysis was commenced EIR No 573 updates the environmental setting for purposes of its second tier analysis of the environmental effects of the ASMP and BTP to the
physical conditions existing in 1998 the time when the notice of preparation for EIR No 573 was published The County has not elected to use the optional provisions of Section 2 1083.8.1
of CEQA or Section 15229 of the Guidelines to establish a baseline time period for determining significant impacts of the project by reference to the year in which the federal
decision to close El Toro became final

Summary and Introduction
l 6
County of Orange EIR No 573 43
43 Page 44 45
1.6.1 No Project Alternative
This EIR provides a comparison of the project impacts to a no project alternative as required by CEQA and the Guidelines CEQA requires that the definition of the no project alternative
include the existing conditions as well as what would be reasonably expected to occur in the
foreseeable future if the project were not approved Under the specific circumstances of the reuse of El Toro the EIR assumes that this equates to a no activity alternative In other words

the no project alternative assumes that the base will be closed for all military activity and that no military or civilian reuse activity would occur on the base in any future year if the project were
not approved For this reason the no project alternative is referred to in this EIR as the No Project No
Activity Alternative

1 7 ORGANIZATION OF THE EIR
A discussion of the general background of the Proposed Project and the County's reuse planning for El Toro as well as the purpose and need for the project and other related information is
provided in Chapter 2 of this EIR The Proposed Project for which this EIR has been prepared and other project related information required by CEQA is described in detail in Chapter 3
Chapter 4 presents the analysis and discussion of identified environmental impacts of the project organized by impact topic identifies mitigation and presents conclusions regarding the
significance of identified impacts after impIementation of proposed mitigation measures Chapter 5 presents the cumulative impacts of the project and
related mitigation The long term implications of the project are discussed in Chapter 6 Significant unavoidable impacts of the

project identified in Chapter 4 are listed together in Chapter 7 of the EIR Chapter 8 presents the analysis of alternatives to the project including an analysis of the No Project No Activity
Alternative A complete inventory of all mitigation measures proposed for incorporation into the project or made a condition of the project is provided in Chapter 9 Chapter 10 lists the
environmental effects of the project that were found not to be significant A list of the persons and organizations consulted during the EIR process is provided in Chapter 11 while Chapter 12
identifies the preparers of the EIR and persons contributing to its preparation
The text of the EIR is presented in three volumes Because of the extensive number of graphics used and presented as part of the environmental analysis the graphics referenced in the text of
the EIR are contained in a separate bound volume The Table of Contents identifies the contents of each of the text volumes of the EIR and it contains a List of Figures identifying by number
and title the figures contained in Volume 3
Various technical reports have been prepared for and are referred to and relied upon in the EIR They are bound separately as Appendices A through M to the EIR

County of Orange EIR No 573 l 7 Summary and Introduction 44
44 Page 45 46
The Airport System Master Plan ASMP and the Base Transition Plan BTP are bound separately though together they comprise the Proposed Project A number of technical reports
and working papers were prepared during the course of the second tier planning process in addition to those technical reports bound as Appendices A through M and these additional
reports and papers are separately printed and bound A list of those documents is contained in Table l l

The availability of these documents as well as studies and reports cited in this EIR is discussed below

1 8 REFERENCED DOCUMENTS AND AVAILABILITY OF STUDIES AND REPORTS
The ASMP is supported by a series of technical reports and working papers prepared both with respect to aviation and aviation compatible and revenue support uses proposed under the ASMP
Those reports are listed on Table l 1 BTP Technical Reports I 5 support the Base Transition Plan In addition the EIR references a number of other studies reports and other similar
documents
Copies of this Draft EIR and its appendices the ASMP and the BTP are available for review in all public libraries in Orange County Copies of all of the documents listed on Table 1 1 the
Draft EIR and its appendices the BTP and BTP Technical Reports 1 through 5 and relevant portions of studies and reports cited and summarized in the EIR see Chapter 13.0 of this EXR
are also available for review during normal business hours at both the following locations
El Toro Master Development Program Orange County Hall of Administration
10 Civic Center Plaza Second Floor
Santa Ana California 92701 Contact Person Bryan Speegle 714 834 3000

and
John Wayne Airport Administration Offices
3160 Airway Avenue Costa Mesa CA 92626
Contact Person Sue Tanner 949 252 5282

Summary and Introduction County of Change EIR No 573 45
45 Page 46 47
Table 1 1 Project Related Documents
5 Facility Requirements Revised November 5,1999 6 Alternatives Definition Report 2 volumes Revised October 15,1999
7 Central Orange County Traffic Model Version 2.8 October 22,1999 10 Airfield and Airspace Evaluation November 5,1999
12 Passenger Terminal Facility Requirements and Concepts Evaluation Revised November 5 1999 13 Ground Access Concepts Evaluation March 18,1999
14 Concepts Evaluation of Other Airport Facilities Revised November 5 1999 16 Economic Benefits Study November 5 1999
17 Airport System Master Plan for John Wayne and Proposed Orange County International Airport December 1999
19 Financial Analysis November 5 1999
Aviation Working Papers 1 Airport Systems Issues Revised January 20,1998

2 List of Preliminary Project Planning Issues Revised January 20 1998 3 JWA OCA Simulation Assumptions Revised January 20,1998
4 Financial Issues for a Two Airport System Revised November 5 1999 5 JWA OCA SIMMOD Model Calibration Revised January 20,1998
10 Traffic Mitigation Feasibility and Cost Estimates October 22 1999 Other Aviation Reports and Plans
Ground Access Traffic and Trip Generation April 15,1999 MCAS El Toro Flight Demonstration July 19 1999
instrument Flight Procedures Analysis May 1998 Jeppesen Analyses Part 1210 April 1998
Airport plans December 1999

In addition to the aviation technical reports several reports on Airport Compatible Revenue Supporting Uses are incorporated by reference as listed below

No 1 Airport System Mast e r Planning Report
Reports on Airport Compatible and Revenue Supporting Uses
Open Space Plan The Planning Center November 1999 Agricultural Lands Concept The Planning Center November 1999

Business Park Design Guidelines The Planning Center November 1999 Base Transition Plan CABACO Inc November 1999

County of Change EIR No 573 Summary and introduction 46
46 Page 47 48
19 SUMMARY OF SIGNIFICANT EFFECTS OF THE PROPOSED PROJECT AND MITIGATION MEASURES
AND ALTERNATIVES THAT WILL REDUCE OR AVOID THAT EFFECT

The EIR analysis determined that the Proposed Project would cause significant impacts in the following areas listed by section number in this EIR
1.9.1 Land Use
1.9.1 1 Impacts
On site agricultural uses may impact nearby developed uses particularly increased dust and
runoff Agricultural lands will be lost as a result of the Proposed Project as identified in Section 4 H

It was determined that the presence of a commercial airport at the El Toro site would not result in a proliferation of sexually oriented businesses because the Proposed Project would not affect the
implementation or enforcement of local regulations concerning permitted land uses A mitigation measure was included as a project betterment to
encourage local jurisdictions in the vicinity of the El Toro site to implement needed restrictions

1.9.1.2 Proposed Mitigation Measures
Mitigation Measure LU 5 includes requirements such as crop restriction low volume watering and runoff control prohibition of aerial spraying of pesticides and dust control to ensure
agricultural use compatibility with adjacent nearby users
Mitigation Measure LU 6 encourages adjacent jurisdictions to adopt or maintain existing restrictions on undesirable land uses or developments

The Proposed Project has no significant land use impacts at the MCAS El Toro and JWA sites that cannot be reduced to a level of insignificance if all mitigations are implemented

1.9.1.3 Alternatives That Would Reduce or Avoid the Effect
The No Project No Activity Alternative and the two Nonaviation Revenue Support Area Alternatives would result in less or no loss of agricultural land see Section 4.11 Natural
Resources and Energy Since the No Project No Activity Alternative and all alternatives that include aviation use assume that some agricultural uses would continue the potential for
compatibility impacts on non agricultural uses is not significantly reduced with any of the alternatives with the exception of the ETRPA Nonaviation Alternative

Summary and Introduction
1 10 County of Orange EIR No 573 47
47 Page 48 49
Implementation of an alternative to the Proposed Project would not affect the ability of local jurisdictions to regulate undesirable land uses
1.9.2 General Plan Consistency
1.9.2.1 Impacts
The County of Orange Land Use Element and City of Irvine and City of Orange Spheres of Influence plans show planned residential uses within the 65 dB CNEL contour of OCX

The Proposed Project will generate the need for an amendment To the AELUP to reflect revised noise contours safety zones and height restrictions for the proposed commercial airport at OCX

1.9.2.2 Proposed Mitigation Measures
Mitigation Measures LU 1 through LU 3 and GPC 2 and GPC 3 include proposed General Plan Amendments to local General Plans and land use compatibility review for areas within the 65 dB
CNEL contour
Mitigation Measures GPC 1 proposes adoption of necessary amendments to the AELUP
The potentially significant adverse General Plan Consistency impacts of the Proposed Project would be reduced to below a level of significance with impLementation of Mitigation Measures
LU 1 through LU 3 and GPC 1 through GPC 3

1.9.2.3 Alternatives That Would Reduce or Avoid the Effect The ETRPA Nonaviation Plan Alternative and Alternatives F and G would result in less or no
planned residential uses within the 65 dB CNEL contour of OCX
All alternatives would result in the need for an amendment to the AELUP

1.9.3 Transportation and Circulation
1.9.3.1 Impacts
The increase in daily trip generation at the MCAS El Toro site compared to existing conditions is potentially significant Specific intersection locations arterial roadways and freeway ramps
would be significantly impacted under existing plus Proposed Project conditions

1.9.3.2 Proposed Mitigation Measures
Mitigation Measure T 3 requires the preparation of a Transportation Demand Management TDM plan for the El Toro site prior to the issuance of building permits

CountyofOrange ERM 573 l 11 Summary and Introduction 48
48 Page 49 50
Mitigation Measures T 4 and T 9 promote inter jurisdictional coordination for highway improvements that are not under the sole control of the County
Mitigation Measures T 5 T 6 and T 8 require the preparation of a Comprehensive Phasing Plan prior to the issuance of building permits and Measure T 7 requires annual monitoring reports
Mitigation Measure T l 0 requires the County to enter into an agreement with affected agencies for project facilities connecting to or located within the right of way or property of Caltrans the
Transportation Corridor Agencies and or Iocal jurisdictions
Mitigation Measure T l 1 requires project conformance with the parking and loading facilities in the County zoning code

The potentially sign ant adverse impacts of the Proposed Project would be reduced to below a level of significance based on the implementation of the mitigation measures described above

1.9.3.3 Alternatives That Would Reduce or Avoid the Effect
The No Project No Activity Alternative would not result in local transportation and circulation impacts but would increase regional vehicle miIes traveled VMT The increase in VMT due to
this alternative would not be mitigatable except through expansion of airport facilities in the county

Only Alternative A would avoid or substantialty lessen project impacts The Nonaviation Revenue Support Area alternatives would reduce the extent and costs of required mitigation for
traffic impacts and would reduce traffic impacts in congested areas to the east and south of the project site

1.9.4 Noise
1.9.4.1 Impacts
The Proposed Project will create noise impacts due to increased aircraft operations and nighttime aircraft operations There is also a reIated impact on Recreation due to adverse noise impacts to
proposed on site recreational facilities and off site trails There is also the potential for shortterm construction noise impacts and two identified roadway noise impacts

1.9.4.2 Proposed Mitigation Measures
Mitigation Measure N 6 includes participation in a fair share program to construct or extend existing sound walls at relevant portions of Trabuco Road between Yale and Jeffrey Road and
along Jeffrey Road just south of Irvine Boulevard

Summary and Introduction
1 12 County of Orange EIR No 573 49
49 Page 50 51
Mitigation Measure N 7 applies to construction and includes adherence to the County Noise Ordinance and for off site improvements in any incorporated areas any existing applicable local
jurisdiction noise ordinances regulating construction noise
Mitigation Measure N 8 provides for a noise monitoring system at OCX including remote microphone stations In addition the County will implement a noise complaint and
administration program and staffing comparable to its existing program at JWA
Mitigation Measure N 9 is Prior to the initiation of scheduled commercial operations at El Toro the County will implement an 86 dB SENEL noise mitigation restriction for El Toro
during the hours of 11 OO p m and 7 00 am The noise level limit will be based upon quarterly energy average SENEL values for scheduled commercial operators by operator and aircraft type
and will be enforced at the remote microphone stations installed and monitored pursuant to mitigation measure N 8

1.9.4.3 Alternatives That Would Reduce or Avoid the Effect
Alternatives F and G would avoid the project noise impacts at the MCAS El Toro site and future off site trails At the same time Alternatives F and G would have greater adverse noise impacts
at JWA than existing operations Alternative G would result in impacts to over 1,750 additional homes exposed to noise in excess of 65 dB CNEL compared to the Proposed Project

The ETRPA Nonaviation Plan Alternative would avoid aircraft noise impacts at the El Toro site but would result in increases in aircraft noise impacts at regional airports where large numbers of
residential and other noise sensitive uses are located within the aircraft 65 dB CNEL contour
The No Project No Activity Alternative would avoid the effects of aviation noise that is any increases in CNEL contours increases in the total number of operations or the increase in
nighttime operations in the vicinity of El Toro but would result in increases in aircraft noise impacts at regional airports where large numbers of residential and noise sensitive land uses are
already located within the aircraft 65 CNEL contours

1.9.5 Air Quality
1.9.5.1 Impacts
Significant short term air quality impacts related to construction at OCX would occur during each phase of development when SCAQMD thresholds for NOx ROC CO and PM10 would be
exceeded Construction emissions impacts would therefore be significant and unavoidable in each phase of the Proposed Project

Regional air quality emissions for the Proposed Project plus existing conditions when compared to existing conditions would exceed the SCAQMD thresholds for operation at El Toro This
significant regional air quality impact can be mitigated to a level below the level of significance County

of Orange EIR No 573 Summary and Introduction 50
50 Page 51 52
There would be no significant local air quality CO hot spot impacts related to the Proposed Project's vehicular traffic There would be a local exceedance of the NO2 threshold related to
OCX aircraft operations at one location sometime after the year 2015 This significant local air quality impact can be mitigated to a level below the level of significance
There

would be significant toxic air contaminants emissions as a result of the Proposed Project These TAC impacts are significant and unavoidable

1.9.5.2 Proposed Mitigation Measures
Mitigation Measure AQ 11 includes construction measures to control suppress fugitive dust reduce vehicle and equipment exhaust and control architectural coating to reduce emissions

Mitigation Measures AQ 12 through AQ 20 and AQ 22 through AQ 3 include proposed implementation of a TDM program specific AQMP measures final design features at OCX to
minimize aircraft taxi in and out times jetway designs at OCX using electrical power and preconditioned air to reduce aircraft auxiliary power usage installation of electrical power
outlets at OCX for electric ramp vehicles and ground support equipment hydrant Fueling systems at OCX support for single or reduced engine taxiing at OCX and JWA and additional measures
to reduce emissions from energy use vehicular traffic and airport ground support equipment
Mitigation Measure AQ 21 identifies proposed achievement of greater than 50 percent of departures from Runway 34R to reduce NO2 values at the Irvine Transportation Center to a less
than significant value
Three mitigation measures TAC 1 TAG2 and TAC 3 are proposed to reduce the health risk impacts associated with the Proposed Project Mitigation Measure TAC 1 is designed to
maximize the fuel supplied to the airport by pipeline in order to minimize the number of Fuel tanker truck trips to the airport Mitigation Measure TAC 2 requires that a minimum of 90
percent of all commercial general service equipment be powered by alternatives to diesel fuel to reduce diesel emissions Mitigation Measure TAC 3 is designed to encourage airport aviation
operators to use the minimum number of engines for taxiing and electric tugs for commercial aircraft gate approach and push back operations

The potentially significant adverse impacts of the Proposed Project can be mitigated to below a level of significance based on the implementation of the mitigation measures proposed above

1.9.5.3 Alternatives That Would Reduce or Avoid the Effect
Total construction emissions would be less with Alternatives A F and G The two Nonaviation Revenue Support Area alternatives 1 and 2 would reduce the amount of construction emissions
The No Project No Activity Alternative would avoid the air quality impacts during construction
There are no alternatives that would minimize project direct and regional emissions impacts

Summary and Introduction County of Orange EIR No 573 51
51 Page 52 53
Local air quality impacts would be reduced with Alternative A the two Nonaviation Revenue Support Area Alternatives the No Project No Activity Alternative and the Wildlands Ranch
Alternative
Toxic air contaminant impacts would be reduced under Alternative A the No Project No Activity Alternative the Wildlands Ranch Alternative and the ETRPA Nonaviation Alternative

The ETRPA Nonaviation Plan Alternative or the No Project No Activity Alternative would avoid the toxic air contaminant impacts at and near the El Toro site However these alternatives
would result in increases in aircraft operations at regional airports where residential and other sensitive uses are located closer to the airports and approach departure areas compared to the
Project 1.9.6

Soils Geology and Seismicity

1.9.6.1 Impacts
The Proposed Project would result in impacts related to compressible soils and exposure to potential seismic activity at the MCAS El Toro site

1.9.6.2 Proposed Mitigation Measures
Mitigation Measure G l requires submittal of a geotechnical report prior to the issuance of a grading permit

Mitigation Measure G 3 includes structural design in accordance with the seismic provisions in the geotechnical report and the Uniform Building Code
The potentially significant adverse impacts of the Proposed Project related to soils geology and seismicity would be reduced to a level below significance based on the implementation of these
mitigation measures

1.9.6.3 Alternatives That Would Reduce or Avoid the Effect
The No Project No Activity Alternative would avoid the impacts at the MCAS El Toro site

1.9.7 Hydrology and Water Quality
1.9.7.1 Impacts
Significant impacts to water quality pollutant concentrations at El Toro are anticipated under the Proposed Project

County of Orange EIR NO 573 Summary and Introduction
1 15 52
52 Page 53 54
1.9.7.2 Proposed Mitigation Measures
Mitigation Measures WQ 5 and WQ 6 are designed to prevent any effects on the existing landfills existing long term monitoring facilities or Marine Corps cleanup projects at El Toro

Mitigation Measures WQ 4 WQ 7 and WQ 8 provide for the stormwater permit process and the use of pollutant control technology and management practices These will reduce or eliminate
stormwater pollution and protect water quality during construction and operation
Implementation of these mitigation measures would reduce the impact of the Proposed Project related to water quality to below a level of significance at both the El Toro and JWA sites

1.9.7.3 Alternatives That Would Reduce or Avoid the Effect
Alternatives F and G would avoid the effect at the MCAS El Toro site This conclusion does not account for separate development at MCAS El Toro

Alternatives F and G would increase the impacts at the JWA site
The No Project No Activity Alternative would avoid the water quality impacts but does not reduce existing flooding impacts

1.9.8 Public Services and Utilities
1.9.8.1 Impacts
The Proposed Project would generate the potential for accidental damage or temporary disruption of services or existing facilities during construction at MCAS El Toro

Improvements to the cable television off site distribution system at MCAS El Toro are anticipated under the Proposed Project

1.9.8.2 Proposed Mitigation Measures
Mitigation Measure PS 1 includes provision of an area within the OCX terminal for a County Sheriff facility

Mitigation Measure PS 2 involves complying with code requirements for any effects of birds on aircraft
Mitigation Measure PS 3 involves preparation of a waste reduction plan to comply with AB 939
Mitigation Measures U 1 through U 4 include specifications for construction protection and project connections for utilities and services

Summary and Introduction 1 16 County of Orange EIR No 573 53
53 Page 54 55
Mitigation Measure PS 4 involves transit facilities and the design of the proposed connection to ITC
Mitigation Measure PS 5 provides for the preparation of a Fiscal Impact Report for public facilities and services costs and revenues
The potentially significant adverse impacts of the Proposed Project related to public services and utilities would be reduced to a level below significance based on the implementation of the
above mitigation measures

1.9.8.3
Alternatives F El Toro site

1.9 9
1.9 9 1

Alternatives That Would Reduce or Avoid the Effect
and and the No Project No Activity Alternative would avoid the effects at the

Natural Resources and Energy
Impacts
Under the Proposed Project significant adverse impacts on agricultural resources are anticipated This level of impact significance is the same as that determined in Final EIR No 563

The project impacts on energy resources involve the use of large amounts of jet aircraft fuel consumed in the ASA

1.9.9.2 Proposed Mitigation Measures
Reduce the conversion of prime agricultural land by using the County's best efforts to secure the conveyance of 40 acres of existing prime agricultural land on MCAS El Toro for the benefit of
the Orange County Sheriff Coroner for permanent agricultural use NRE AG 1
Continue to make agricultural lands available for lease as an interim use NRE AG 2

Implementation of the above mitigation measures will not reduce the impact to agricultural resources to below a level of significance and the impact would remain significant and

unavoidable nor can the impact to energy resources regarding use of large amounts of jet aircraft fuel be mitigated

1 .9.9.3 Alternatives That Would Reduce or Avoid the Effect
Alternatives F and G would avoid the loss of agricultural soils at the MCAS El Toro site This conclusion does not account for separate development at MCAS El Toro

County of Orange e i r No 573 Summary and Introduction 54
54 Page 55 56
There are two Land Use Alternatives at Former MCAS El T o ro Nonaviation Revenue Support Area Alternative 1 and 2 These two alternatives would reduce the effect on agricultural soils
Alternative A would also reduce the effect on agricultural soils
The No Project No Activity Alternative would avoid the loss of agricultural soils

1.9.10 Recreation
1.9.10.1 Impacts
As noted above in Noise there is an adverse impact on recreational facilities FEIR No 563 concluded that a lack of recreational use connection between the project site and the parks to the
northeast was inconsistent with the Resources Element map and therefore represented a significant adverse impact The current project is therefore also inconsistent with the Resources
EIement Open Space Conservation Program Map because the connection to the regional parklands to the northeast is not included as part of the project As such this previously
identified significant adverse impact related to General Plan consistency remains

1.9.3 0.2 Proposed Mitigation Measures
Mitigation Measure LU I specifies the amendment of the County General Plan Elements as necessary so that the Proposed Project at MCAS El Toro is consistent with the General Plan

The Proposed Project will generate the significant adverse noise impacts to portions of existing Class II bikeways in the City of Lake Forest on Alton Parkway Portola Parkway Bake Parkway
Lake Forest Drive existing local park and open space areas in northern Lake Forest the planned Jeffrey Road Bikeway the planned Hicks Canyon Trail and proposed on site recreation
facilities
These noise impacts are considered unavoidable and will not be reduced to below a level of significance since there is no feasible mitigation to reduce the exterior noise levels from aircraft
overflights in the outdoor recreational setting

1.9.10.3 Alternatives That Would Reduce or Avoid the Effect
The following alternatives would reduce the aviation noise impacts on recreational facilities Alternatives A and C

The following alternatives would avoid the aviation noise impact on recreational facilities Alternatives F G ETRPA Nonaviation and the No Project No Activity

Summary and Introduction County of Orange EIR No 573 55
55 Page 56 57
1.9.11 Hazardous Wastes and Hazardous Materials Use
1.9.11 .1 Impacts
Under the Proposed Project there are anticipated adverse effects from existing hazardous waste sites significant effects from removal of asbestos and lead based paints and potential significant
adverse impacts from proposed hazardous materials use

1.9.11.2 Proposed Mitigation Measures Mitigation
Measures HM 1 through HM 6 and AQ 11 include actions to address the removal of asbestos containing materials and lead based paint

Mitigation Measure HM 8 provides for monitoring for the presence of combustible gases during
all underground work within 1,000 feet of the landfill refuse boundary for all landfills on the MCAS El Toro site

Mitigation Measures HM 9 through HM 18 HM 20 HM 2 1 HM 22 HM 23 HM 24 HM 26 HM 27 HM 29 and LU 5 provide specifications for construction operation and regulation of
facilities relative to hazardous waste and materials issues
Mitigation Measure HM 19 will ensure that any site runoff will be directed away from IRP landfill Sites 3 and 5

Mitigation Measure HM 25 will ensure that no development construction on IRP Sites 3,4,5,7 8 11 12 14 and 16 occurs until appropriate remedial action has been implemented Mitigation
Measure HM 30 will ensure the DON completes its obligation to remediate all IRP sites at the MCAS El Toro site

1 .9.11.3 Alternatives That Would Reduce or Avoid the Effect
The No Project No Activity Alternative would avoid the generation of new or additional hazardous materials and wastes and would avoid creating new or expanded land uses that would
be incompatible with existing or future remedial plans by the DON However under this alternative existing structures with asbestos containing building materials and lead based paints
would no longer be maintained or demolished and would over the long term represent a human health hazard This is a significant adverse impact

The ETRPA Nonaviation Alternative would result in land uses that are incompatible with IRP Site 3 and IRP Site 5 This is a significant adverse impact Therefore the ETRPA Nonaviation
Alternative would result in greater adverse impacts than the Proposed Project and would not avoid or lessen project impacts

County of Orange EIR No 573 Summary and Introduction 56
56 Page 57 58
1 .9 .1 2 Socioeconomics
1.9.12.1 Impacts
The Proposed Project will result in demand for housing inducing substantial growth or concentration of non resident employee population and reducing the supply of available housing

in the County
The employment and population generated on site under the Proposed Project would be inconsistent with the adopted regional forecasts This finding is consistent with the findings of
Final EIR No 563 and does not represent a new or increased impact beyond those identified in Final EIRNo 563

1.9.12.2 Proposed Mitigation Measures
Mitigation Measure SE l includes updating OCP 96 Modified and SCAG forecasts
Impacts of the Proposed Project regarding inconsistency with the adopted regional forecasts will be reduced to below a level of significance with implementation of Mitigation Measure SE l

Impacts of the Proposed Project related to inducing substantial growth or concentration of nonresident employee population cannot be mitigated below
a level of significance

Impacts of the Proposed Project related to increased resident population growth and the related demand for all types and
prices of housing in the surrounding area while not directly providing any new housing to meet this increased demand cannot be mitigated below a level of

significance
Impacts of the Proposed Project related to reducing the supply of available housing in the County cannot be mitigated
below a level of significance

1.9.12.3 Alternatives That Would Reduce or Avoid the Effect
The No Project No Activity Alternative would reduce the magnitude of impacts related to increased demand for housing and induced growth or concentration of population and
employment in the areas Alternative A would also reduce these effects The reduction in supply of available housing would still occur with these alternatives as the military housing
would not be used for housing

Summary and Introduction County of Orange EIR No 573 57
57 Page 58 59
1.9.13 Risk of Upset
1 .9 .1 3 .1 IMPACTS
Highway truck transport of jet fuel to the MCAS El Toro site would create one significant adverse impact to public health and safety under risk of upset conditions

1.9.13.2 Proposed Mitigation Measures
Mitigation Measure RU 1 requires the County to make every reasonable effort to lease or otherwise obtain appropriate agreement and or approval for the use of the Norwalk Pipeline and
Santa Fe Pacific Pipeline Line Section 126 LS 126 for the purpose of conveying all jet fuel to the MCAS El Toro site The objective of this measure is to obviate the need for and eliminate
the adverse impacts associated with highway truck transport of jet fuel
Implementation of Mitigation Measure RU 1 will reduce the potential for risk of upset associated with the Proposed Project to below a level of significance

1.9.13.3 Alternatives That Would Reduce or Avoid the Effect
Alternatives F and G would avoid the risk of upset potential at the MCAS El Toro site The risk of upset potential would be higher at JWA with Alternatives F and G

The ETRPA Nonaviation Plan and the No Project No Activity alternatives would avoid the effect of transporting
jet fuel to the MCAS El Toro site The impacts for these alternatives would be substantially less than the Proposed Project

1.9.14 Summary Of Cumulative Effects Of The Proposed
Project And Mitigation Measures That Would Lessen
Or Avoid That Effect

1.8 14.1 Cumulative Impacts

The Proposed Project will contribute to cumulative effects on the following roadways
l Moulton from Ridge Route to Glenwood
l Laguna Canyon Road from Bake Parkway to Santa Maria

County of Orange EIR No 573 Summary and Introduction 58
58 Page 59 60
Noise
The Proposed Project is anticipated to have a locally significant adverse aviation noise impact but a regionally beneficial cumulative aviation noise impact

Although the Proposed Project would result in additional air pollutant emissions in the project vicinity air pollutant emissions in the Basin in year 2020 are anticipated by SCAQMD to be
lower with the implementation of the Proposed Project However because the South Coast Air Basin is nonattainment in State and federal standards for ozone and PM 10 and nonattainment in
State CO standards cumulative operational emissions would remain significant and unavoidable

The Proposed Project till contribute to continued fragmentation of habitats and wildlife populations that the habitats support that is anticipated with the extension of Alton Parkway
Future extension and construction of Alton Parkway would impact coastal sage scrub southern willow scrub coast live oak woodland ephemeral drainages and washes and annual non native
grassland

Na turalalural Resources and Energy
The Proposed Project is anticipated to contribute to cumulatively significant adverse impacts due to the incremental loss of agricultural and farmland in the Orange County area and use of
additional amounts of water and energy

Socioeconomics
The types and amounts of specific land uses that may eventually be developed in currently unplanned and undeveloped areas surrounding the El Toro site could impact the distribution of
regional growth and thus cumulatively increase the magnitude of inconsistency with adopted regional growth forecasts

Inducement of substantial growth and concentration of both resident and non resident population cumulatively increasing the impact of the Proposed Project
Inducement of non residential development without provision of housing to accommodate potential new employees thereby causing a cumulative increase in demand for all types and
prices of housing while not directly supplying any new housing to meet this demand

1.9.14.2 Mitigation
Mitigation Measures T 12 and T 13 commit the County to fair share improvements to Moulton and Laguna Canyon Road and cooperative processing of MPAH amendments

Summary and Introduction County of Orange EIR No 573 59
59 Page 60 61
Mitigation Measure B l 7 commits the County to redesigning the Alton Parkway extension to
minimize biological impacts to one acre or less of waters of the U S and jurisdictional wetlands

Mitigation Measure SE l would reduce the cumulative impacts related to adopted growth forecasts

1.9.15 Level of Significance After Mitigation
A number of the impacts noted above are reduced to below a level of significance with standard conditions and the mitigation measures summarized

The Proposed Project is anticipated to result in the following significant adverse impacts that cannot be mitigated to below a level of significance after implementation of relevant existing
regulations and the identified mitigation measures

l
Noise impacts due to increased aircraft operations and nighttime aircraft operations in the vicinity of the El Toro site
Noise impacts on the use of I the proposed on site recreational facilities 2 existing local parks and open space areas in the northern part of the City of Lake Forest 3 future off site
trails including portions of the future Borrego Canyon Bikeway the future Jeffrey Road Bikeway and the future Hicks Canyon Trail and 4 portions of Class II on road bikeways on
Alton Parkway Portola Parkway Bake Parkway and Lake Forest Drive
Loss of agricultural soils
Encouragement of use of large amounts of jet fuel when compared to the existing conditions
Short term air quality impacts during construction
Public acute health impacts due to potential toxic air contaminant emissions during operation

Demand for all types and prices of housing including low and moderate income housing and impacts of inducing substantial growth or concentration of non resident employee
population and reducing the supply of available housing in the County

The Proposed Project will also contribute to potentially significant cumulative adverse impacts as listed above

County of Orange EIR No 573 Summary and Introduction 60
60 Page 61 62
2.0 PROJECT HISTORY AND SUMMARY OF THE PURPOSE OF THE PROJECT
2 1 PROJECT BACKGROUND
This chapter summarizes the relevant history and circumstances leading to the Airport System Master Plan ASMP and Base Transition Plan BTP for which this EIR has been
prepared This includes a summary of information presented in more detail in the ASMP and related technical reports that are relevant to the purpose of and need for the project

2.1 .1 History Of the El Toro Military Base Closure
Process

Marine Corps Air Station MCAS El Toro consists of approximately 4,700 acres in central Orange County adjacent to the convergence of Interstate Freeways 5 I 5 and 405 I 405
and the Eastern Transportation Corridor Most of the MCAS El Toro site is in unincorporated territory over which the County of Orange has direct land use planning and
development authority The southernmost portion of the MCAS El Toro site approximately 342 acres south of the existing Burlington Northern and Santa Fe railroad tracks which
border the base is within the incorporated boundary of the City of Irvine
The construction of MCAS El Toro began in July 1942 on a parcel of land purchased from The Irvine Company The facility was initially built as a wartime expedient air station for
the purpose of aircraft squadron formation and unit training prior to overseas combat deployment It was commissioned on March 17 1943 In 1950 MCAS El Toro was
selected for development as a Master Jet Air Station and the permanent center of Marine aviation on the west coast of the United States Its mission was to support the operations
and combat readiness of Fleet Marine Forces In 1955 the Third Marine Aircraft Wing Headquarters relocated to El Toro from Miami Florida to become the primary tenant After
1971 the Marine Air Reserve under the command of the 4th Marine Air Wing conducted reserve training operations at El Toro

Federal Decision To Close MCAS El Toro
The closure of MCAS El Toro as a military facility is a result of the federal 1993 Base Realignment and Closure BRAC process MCAS El Toro is one of 30 California military
bases placed on the closure list during or after 1988 Operational closure of MCAS El Toro was implemented in July 1994

The County of Orange was designated by the Department of Defense DOD Office of Economic Adjustment OEA as the Local Redevelopment Authority LRA for El Toro on
April 5 1995 The LRA is responsible for planning the reuse of MCAS El Toro

County of Orange EIR No 573 Introduction 61
61 Page 62 63
Under federal law and implementing regulations a three tiered series of screening processes was undertaken in 1994 95 to identify interest in obtaining buildings and property at closing
military installations First priority was given to the DOD and other federal agencies under the federal screening process Property not granted to the DOD and other federal agencies
was then made available to state local agencies and homeless service providers under the state and local screening process Under the screening process state and local entities apply
to a federal agency requesting sponsorship for a public benefit conveyance of property at no cost or a reduced cost

Under the federal screening process for MCAS El Toro units of the DOD and other federal agencies submitted applications to the Department of the Navy DON requesting transfer of
property and facilities at MCAS El Toro Requests from the Department of Interior and FAA and a later request from the FBI are expected to be granted by transfer of
approximately 970 acres of the base northeast of Irvine Boulevard from the DON directly to these federal agencies As discussed in Chapter 3.0 the County is not expected to request or
be involved in the conveyance of this area and it is not a part of the Proposed Project
evaluated in this EIR A federal screening request from the Air National Guard is proposed to be accommodated on the site through a no cost lease with the LRA

Further details on the state local homeless and federal agency requests included in the ASMP are identified in Chapter 3.0 Project Description

2.1.2 MCAS EL Toro Community Reuse Plan CRP And
Final EIR 563

The following discussion provides an overview of the reuse planning efforts for MCAS El Toro undertaken by the County since 1995

Phases I and II of Reuse Planning Process
Date Action
November 8,1994 Passage of Measure A a countywide voter approved initiative that designated land at the MCAS El Toro site for a commercial airport

1 9 9 5 Phase I of reuse planning process initiated by County three alternatives defined two aviation and one nonaviation for analysis
at a comparable level of detail for inclusion in County EIR No 563
April 1996 County issued a Notice of Preparation for draft Environmental Impact Report No 563 for the MCAS El Toro Community Reuse

Plan CRP which was prepared pursuant to federal military base
reuse laws and regulations The CRP proposed the conversion of MCAS El Toro from a military air station to a commercial aviation

passenger and air cargo airport following the military's closure of the base in July 1999

Introduction County of Orange EIR No 573
2 2 62
62 Page 63 64
Date Action

August 8,1996 County issued Draft EIR No 563 for public comment and review
December 11,1996 EIR No 563 was certified as adequate and complete LRA Resolution 96 01 Board of Supervisors adopted the MCAS El Toro
Community Reuse Plan and Homeless Assistance Submission LRA Resolution 96 02 Pursuant to federal law the CRP and
related Homeless Assistance Submission were submitted to the DON and the Department of Housing and Urban Development for
review and consideration In adopting the CRP Board of Supervisors provided guidance for Phase II of planning

December 11,1996

July 28 1997

April 21,1998
September 15 1998

Phase II of reuse planning initiated at the Board's direction El Toro Master Development Program created to 1 prepare an
Airport System Master Plan ASMP related land use plan and environmental documentation 2 negotiate conveyances for real

and personal property and 3 identify and implement opportunities for public participation

County initiated preparation of a Master Development Plan 43 preliminary screening scenarios were identified based on aviation
service roles four preliminary aviation alternatives A through D were selected for further evaluation and four community concepts
A through D were drafted for the nonaviation land use areas on the site

Key characteristics of the four preliminary airport community concepts and a comparison to the CRP are presented in the
Alternatives Definition Report ASMP Technical Report 6 UCAA October 1999 the Airport Community Concepts The Planning
Center April 17 1998 and an accompanying staff report These alternatives are summarized in Chapter 5.0 of the ASMP

Board of Supervisors selected Alternative C as the Proposed Project for analysis in this EIR Board of Supervisors directed
County staff to analyze Alternative B at an equal project level of detail

Board of Supervisors adopted refinements to nonaviation portions of the Proposed Project and Alternative B including replacement of
nonaviation high intensity employment development at MCAS El Toro with low intensity active and passive parklands and golf
courses habitat areas and public facilities

County of Orange EIR No 573 Introduction 63
63 Page 64 65
Date Action
October 16 1998 County issued the Notice of Preparation for EIR No 573 which
addresses the second phase plan for the MCAS El Toro Master Development Plan Airport System Master Plan and alternatives to

the plan
February 1999 County of Orange issued FEIR No 563 Draft Supplemental Analysis DSA as required by judicial decisions on lawsuits filed

in 1997 on FEIR No 563 Certain environmental topics were required to be reanalyzed see discussion in Section 2.1.3

March 30,1999 Board of Supervisors determines Alternative C is infeasible due to the high cost of the required rail connector component of the
project ASMP Technical Report 13 OCAA 1999 Alternative B is designated as the Proposed Project

November 9,1999 Board of Supervisors certified FEIR No 563 Final Supplemental Analysis which was circulated for public review in February 1999

A map reflecting the land uses proposed in the CRP is presented in Figure 2 1
2.1.3 Litigation Regarding Final EIR 563 and the Courts
Judgments

In January 1997 two lawsuits were filed by the El Toro Reuse Planning Authority ETRPA and Taxpayers for Responsible Planning TRP challenging the adequacy of Final
EIR No 563 In October 1997 the San Diego Superior Court the Honorable Judith M McConnell ruled on the lawsuits finding that certain specific portions of Final EIR No 563
were inadequate or incomplete under CEQA In brief the court found that Final EIR No 563 failed to assess the Traffic and air quality impacts of the CRP against existing
conditions improperly relying on unbuilt and unfunded infrastructure improperly relied on certain noise mitigation measures failed to identify impacts to certain listed species as
significant failed to adequately consider measures to mitigate the loss of agricultural lands failed to adequately consider a no project alternative and failed to adequately respond to
certain comments on the Draft EIR The Court denied the plaintiffs request to enjoin the County's planning process and did not direct the County to set aside the adoption of the
CRP
On January 6 1998 the trial court issued a Peremptory Writ of Mandate directing the County to take those actions necessary to correct the specified deficiencies ETRPA and
TRP then appealed the trial court's judgment and the County subsequently cross appealed on five specific issues

A supplemental analysis was prepared and circulated for public review and comment Final EIR No 563 DSA County of Orange MCAS El Toro Master Development Program

Introduction County of Orange EIR No 573 64
64 Page 65 66
February 1999 to address each of the issues that the trial court found deficient in Final EIR No 563
On June 17 1999 the Fourth District Court of Appeal Division One issued its ruling on ETRPA's appeal and the County's cross appeal from Judge McConnell's ruling on EIR
No 563 The Court of Appeal affirmed Judge McConnell's rulings in favor of the County on each of the issues raised by the ETRPA and TRP appeals In response to the County's
cross appeal the Court of Appeal agreed with the County and reversed Judge McConnell's rulings against the County on three issues finding that i the no project analysis of
FEIR No 563 was adequate ii the County's noise mitigation measures were adequate and iii that the County proceeded properly in its conclusions that there were no significant
impacts to the Swainson's Hawk or the Peregrine Falcon In October 1999 the California Supreme Court denied the ETRPA and TRP requests for further review

Much of the impacts analysis contained in this Draft EIR No 573 was prepared during the time when the DSA was available The FEIR No 563 Final Supplemental Analysis FSA
was certified by the Board of Supervisors on November 9,1999

2.1.4 Transition From CRP to ASMP and Open Space
Plan

Based upon continuing analysis and the ongoing development of information and public input to the second tier planning process on September 1 1998 County staff recommended

to the Board of Supervisors certain refinements to the preliminary Concepts presented to the Board in April 1998 The principal thrust of the Proposed Project refinements the
Airport and Open Space Plan was to reduce nonaviation related high intensity commercial and industrial development on the base and to increase the amount of active
recreational park uses passive open space uses and public facilities
This change in emphasis accomplishes a number of important objectives in the El Toro planning
process The anticipated benefits of these refinements as identified in the staff report to the Board of Supervisors include the following

The number of daily vehicle trips associated with the plan would be reduced substantially from that analyzed in the CRP EIR No 563 and the April 1998
second tier planning concepts with a proportional reduction in local air emissions and traffic noise

ii The balance between development and open space achieved by this approach is more representative of and more consistent with the type of master planned communities
in southern Orange County
iii The County would focus on developing and using the base property for uses that the County is best suited to develop and operate regional facilities serving important
public needs that are not traditionally the type of projects developed or operated by the private sector

County of Orange EIRNo 573 Introduction 65
65 Page 66 67
iv The development of high intensity commercial and industrial uses if any would be left largely to the private sector If there is market demand for these uses private
sector developers would be able to respond to that demand rather than competing with the County acting as a developer

Any commercial or other uses developed in response to the commercial airport would be planned in and under the land use regulatory control and authority of the
surrounding cities or other willing cities in the County Therefore City Councils and Planning Commissions could ensure that the airport area will be developed in a way
that enhances existing and planned land uses and the local quality of life
These refinements of Alternatives C and B were recommended for further study by the LRA on September 1 1998 The Airport and Open Space Plan is identical in terms of areas
devoted to each nonaviation land use for both Alternatives C and B
Alternative C assumed that the County would regulate the aviation market service roles of El Toro and JWA by imposing what are commonly referred to as perimeter rules In the
case of Alternative C these rules would require that all short haul departures less than 500 miles occur at JWA while all longer distance departures would be required to use El
Toro In order to allow passengers to connect effectively between the short haul flights at
JWA and the longer haul flights at El Toro Alternative C included a rail or other connector system between the two airports that would in effect allow the two facilities to

function as a single airport Without this connector the market segmentation between the two airports wouId not be feasible

Technical Report 13 Ground Access Concepts Evaluation OCAA March 18 1999 provides the detailed analysis of the El Toro JWA connector system The costs of the
connector were found to be infeasibly high and would have imposed unacceptable costs on the air traveling public and the airlines that serve them Therefore on March 30 1999 the
LRA designated Alternative B as the Proposed Project for purposes of preparing the Airport System Master Plan asmp EIR see Figures 3 2 and 3 3 for proposed land uses at
El Toro and JWA under the ASMP respectively

2.2 PROJECT PURPOSE AND NEED
A complete list of the project objectives is presented in Section 2.3 However the principal purpose of the ASMP is to provide enhanced commercial airport facilities in Orange County
to meet the demand for air service generated within Orange County

As part of the preparation of the ASMP up ted and refined aviation demand forecasts were prepared for the relevant Airport Service Area ASA The ASA is defined as the Southern
California Region including the counties of Los Angeles Orange Riverside San Bernardino San Diego and Ventura see Figure 2 2

Introduction
2 6 County of Orange EIR No 573 66
66 Page 67 68
2.2.1 Aviation Demand
As part of the ASMP planning process updated and refined demand forecasts were prepared using state of the art forecasting techniques and modeling Technical analyses prepared by
the County included analysis of potential aviation market opportunities that should be considered as part of the aviation system planning in Orange County see Figure 2 3
Distance of Domestic Markets from Orange County ASMP Technical Report 4 Aviation Demand Forecasts OCCA April 1998 and ASMP Technical Report 6 Alternatives
Definition Report OCAA revised October 15 1999 provide results of the market demand forecast
analysis for the ASA and the aviation concept alternatives that were considered by the County for fiuther planning respectively Technical Report 12 Passenger Terminal

Facility Requirements and Concepts Evaluation OCAA revised November 5 1999 provides an evaluation of alternative terminal facility concepts Information included herein
related to the need for the Proposed Project is in part from these reports
The boundaries of the ASA extend significantly beyond Orange County and while some demand for air service in Orange County would exist in these areas the relative contribution
of passengers and cargo to the Proposed Project diminishes as the distance from Orange County increases However the extent to which demand diminishes with distance will vary
with the type range and level of service provided both at Orange County airports and competing facilities The market area for general aviation will be limited to Orange County
because there are more competing airports providing similar levels of service near Orange County to serve general aviation than there are to serve passengers and cargo

The ASA is currently served by seven air carrier airports and three commuter airports Air carrier airports with scheduled passenger service include Burbank Glendale Pasadena
Airport BUR John Wayne Airport JWA Lindbergh Field SAN Los Angeles International Airport LAX Long Beach Airport LGB Ontario International Airport
ONT and Palm Springs Airport PSP Commuter airports include Oxnard Airport OXR McClellan Palomar Airport CRQ and PaImdale Airport PMD

With the closure and realignment of several military bases in the ASA air carrier passenger and cargo services could potentially be initiated at several other facilities These include in
addition to MCAS El Toro the following joint use of March Air Force Base MAR in Riverside County joint use of the Naval Air Weapons Station Point Mugu PMG in
Ventura County San Bernardino International SBI formerly Norton Air Force Base in San Bernardino County and Southern California Logistics Airport SCLA formerly George Air
Force Base in San Bernardino County

While the rate of future population employment and income growth in the ASA is anticipated to slow somewhat from historic levels the absolute increase is expected to be
substantial For example total population in the ASA is projected to increase by eight million persons between 1996 and 2020 when population is forecast to reach 26.1 million
Orange County is expected to capture almost eight percent of this growth increasing from 2.6 million persons in 1996 to 3.2 million in 2020 Similarly total employment in the ASA
is projected to increase by 4.4 million jobs between 1996 and 2020 when employment is

County of Orange EIR No 573 Introduction 2 7 67
67 Page 68 69
forecast to reach 12 million Grange County is expected to capture 18 percent of this growth increasing from 1.3 million jobs in 1996 to 2.1 million in 2020 Source OCAA
ASMP Technical Report 4
Total air passengers in the ASA are expected to increase from 91.8 MAP in 1996 to 178.6 MAP in 2020 an average increase of 2.8 percent per year This rate is lower than the
historic rate of increase between 1970 and 1996 which averaged 4.7 percent per year Domestic passengers are expected to increase from 77.6 MAP in 1996 to 128.1 MAP in
2020 International passengers are forecast to increase from 14.2 MAP in 1996 to 50.5 MAP in 2020 see Figure 2 4 Air Passenger Demand Forecasts in ASA 1970 2020

Domestic air cargo demand in the ASA is expected to increase from 1.8 million tons in 1996 to 5.3 million tons in 2020 International air cargo is forecast to increase from 0.8 million
tons in 1996 to 3.6 million tons in 2020 Asia Pacific traffic represents the largest share of international air cargo demand in 2020 with a potential 2.7 million tons or 74 percent of

international air cargo volume see Figure 2 5 Air Cargo Demand Forecasts in ASA 1975 2020

Express air cargo both domestic and international is projected to grow from 0.9 million tons in 1996 36 percent of total air cargo to 4.4 million tons in 2020 49 percent of total air
cargo General airfreight is projected to grow from 1.4 million tons in 1996 56 percent of total air cargo to 4.1 million tons in 2020 46 percent of total air cargo Air mail is
projected to grow from 0.2 million tons in 1996 9 percent of total air cargo to 0.4 million tons in 2020 5 percent of total air cargo see Figure 2 5

General aviation is defined by the FAA as all aviation activity that is not by certified air carriers and air taxi commuter carriers or by the military General aviation typically
consists of single engine and twin engine piston aircraft operations for flight training personal and business uses as well as turboprop and turbojet operations by corporate users
General aviation activity also includes helicopter operations by city and county law enforcement units air ambulance operators and the media The general aviation aircraft
forecast for Orange County is projected to remain about the same in 2020 refer to ASMP Technical Report 4 Table ES 3 OCAA 1999

SCAG's 1998 RegionaI Transportation Plan RTP contains adopted aviation passenger forecasts for JWA and El Toro in 2020 The 2020 medium recommended forecast at El
Toro is 22.2 MAP and 7.0 MAP at JWA RTP Table 1 1
Because of its geographical operational and other limitations JWA has only limited capacity to serve the air transportation demand generated by a County with the existing and
forecast population and economy of Orange County particularly commercial air passenger
and air cargo demand Until 1995 JWA served no dedicated all cargo operators and since then has served only two cargo flights per day under a special and interim expansion of the

1985 Settlement Agreement operational limits This EIR and the ASMP planning process have both analyzed alternatives that would develop the maximum feasible capacity at JWA
within its existing geographical boundaries Alternative F and that would expand the

Introduction County of Orange EIR No 573 68
68 Page 69 70
geographical area and facilities at JWA to meet the forecast domestic and limited long haul
Canada and Mexico demand generated in Orange County Alternative G A comparison of the Proposed Project to Alternatives F and G is provided in Chapter 8 of this EIR

However the ASMP analysis and the EIR demonstrate that both alternatives would have substantial adverse environmental impacts would result in the displacement of all or
substantially all of the General Aviation activity currently occurring at JWA would particularly in the case of Alternative F fail nevertheless to serve Orange County's forecast
demand for commercial air transportation services in the case of Alternative F by more than 50 percent and would otherwise appear to be infeasible or highly undesirable
alternatives to the ASMP There do not appear to be any feasible off site alternatives in Orange County for the location of a commercial service airport that would meet the forecast
Orange County generated air service demand
Based both upon the ASMP and EIR analyses the use of El Toro for commercial aviation facilities and activities appears to be the only realistic opportunity Orange County will have
in the foreseeable future to serve locally its own generated demand for air service and the only likely scenario under which the County could avoid continuing to export a substantial
portion of its air service demand to other airports and communities in the Southern California region

On July 2,1999 the FAA approved the County's demand forecasts as a reasonable basis for continued planning for the ASMP See Appendix E to the ASMP

2.2.2 Other Purpose and Need Factors
The following factors are also important considerations when assessing the purpose and need for the Proposed Project

Convenient Access to Air Travel and Air Cargo is Vital for Economic
Success in the Future

0 i Trade technology and tourism are the major elements supporting Orange County's economy and creating jobs and these increasingly depend on convenient and costeffective
transportation of passengers and cargo to and from world markets

ii SCAG estimates that the rush hour commute from Irvine to LAX will take twice as long in 2020 as it does today and the freeway to Ontario International Airport
ONT will be severely congested by 2020 Congestion on the roads to distant airports is inconvenient and costly for businesses and tourists and has the potential
to affect the County's economy and the region's traffic and air quality negatively

County of Orange EIR No 573 Introduction 69
69 Page 70 71
iii Economic competition is fierce on the West Coast Orange County requires a regional airport with international access to remain economically competitive with
Los Angeles San Diego the Bay Area and Silicon Valley
iv Without air transportation freight must be carried in trucks and people in buses trains and cars with significant impacts on cost convenience lost time traffic
congestion and air quality

Revenue and Jobs Generation
The economic benefits of a two airport system in Orange County JWA and proposed OCX are evaluated in ASMP Technical Report 16 Economic Benefits OCAA November 5
1999 The study provides estimates of the measures of economic benefit of the Proposed
Project including employment personal income and output the dollar value of the industry's total production The total combined annual benefits expected to be realized by

the year 2020 to Orange County's economy from the Proposed Project are 9.7 billion in
output 4.0 billion in personal income and 146,000 jobs Of this total visitor expenditures represent the single highest component of economic benefit generated by the Proposed

Project with 5.4 billion in total output to the County's economy which would in turn support more than 97,000 jobs and 2.2 billion in personal income

Orange County Should Accommodate Locally as Much of its own
Generated Demand for Air Service as Possible

0 i Existing SCAG policies encourage local counties and communities to accommodate as much of their locally generated demand for air service with local airport facilities
and to accommodate increasing shares of international air service demand rather than relying exclusively on LAX to serve the regional need for such service see

Appendix K SCAG policies 4.18 and 4.20

i i Communities around other existing air carrier airports in the region are already burdened by environmental impacts from the operation of those facilities For
example all of the existing passenger air carrier airports in the Air Service Region have incompatible land uses inside of their 65 dBA CNEL contours and require noise

variances for their continued operation under noise regulations adopted and administered by Caltrans Continuing to require those facilities to increase the
number and share of Orange County passengers and shippers required to use those facilities because of the lack of airport capacity in Orange County unfairly burdens
those communities This is particularly true when El Toro operating together with JWA can be developed to accommodate Orange County's forecast demand without
impacting existing residential uses at a level of 65 CNEL and without requiring a state noise variance for its operation

Introduction County of Orange EIR No 573 70
70 Page 71 72
No Other Suitable Airport Sites Are Available in Orange County
Numerous studies over the past approximately 30 years have addressed the inadequacy of JWA to handle the long term commercial aviation needs of Orange County In most of
these studies MCAS El Toro was identified as a potential civilian airport facility However each of these studies concluded that since El Toro would continue to be maintained as an
active military base and because of the historic and consistent opposition by the Marine Corps to joint use of El Toro it would not be available for any civilian aviation uses Those
studies also generally concluded that JWA could never be developed to a level adequate to serve all of the Orange County generated air transportation demand and that no feasible
alternative airport site to serve Orange County could be identified and successfully implemented

2 .3 PROJECT OBJECTIVES
The objectives of the Proposed Project are identified below The project objectives are an important benchmark against which the project alternatives are measured for environmental
and other purposes One of the standard issues considered as part of the CEQA process is the extent to which identified alternatives could realize most or all of the project objectives
with less environmental impact than would be caused by the Proposed Project The information in the EIR together with the other related reuse planning studies and
documents permits the County to balance competing environmental economic social and other public policy considerations in the selection of a final Master Development Plan

The project objectives can generally be separated into two categories First some of the objectives are common to both the Proposed Project and all of the project alternatives
Second some of the objectives are specific to the proposed aviation component of the Master Development Plan although the extent to which these objectives would be realized
varies between the Proposed Project and its alternatives

2.3.1 General Project Objectives
The general project objectives of the Proposed Project and its alternatives are to adopt a redevelopment plan that encompasses the following

0 i Generally to provide the greatest long term potential economic benefit to the Orange County community and its citizens in order to offset to the extent feasible the
adverse local economic impacts of the federal closure of MCAS El Toro

I Job creation and economic development are given the highest priority in the reuse of closed
military bases in accordance with the President's objectives for disposal of federal property

County of Orange EIR No 573 Introduction 71
71 Page 72 73
ii To encourage and foster a redevelopment of MCAS El Toro that will act as a continuing economic stimulus for the creation and continuation of diverse local job
opportunities

iii To encourage and foster opportunities for continued sustained growth of existing County business sectors and

iv To implement the plan in a manner that avoids or minimizes local taxpayer responsibility or financial exposure to significant redevelopment costs and
effectively to finance the plan in a manner allowing recovery of development costs from users directly benefited by the redevelopment

Special Planning opportunities To take advantage of the unique opportunities created by
the location size existing infrastructure and other unique or special characteristics of MCAS El Toro to comply with the County of Orange General Plan as amended by

Measure A
Homeless Needs To provide opportunities to efficiently meet local homeless needs
Timely Implementation To be reasonably capable of timely and effective implementation
Environmental Sensitivity To be sensitive to local environmental concerns and
considerations

Development Compatibility To focus on opportunities for the development of projects that
complement local private sector development

Surrounding Land Use To be sensitive to existing and planned patterns of development particularly in areas in the immediate vicinity of MCAS El Toro

2.3.2 Aviation Related Planning Objectives
The aviation related planning objectives of the Proposed Project are to adopt a Master Development Plan that in addition to meeting the general project objectives would
accomplish the following
Passenger and Cargo Demand To allow Orange County to serve a greater portion of its locally generated air transportation demand passenger and cargo at Orange County
facilities than would be reasonably practicable with existing Orange County an port facilities

Service Opportunities To encourage the growth of air service opportunities for the Orange County community that otherwise might not be available at Orange County facilities such
as air cargo and international and extensive domestic long haul passenger service

Introduction County of Orange EIR No 573 72
72 Page 73 74
General Aviation To preserve and enhance general aviation opportunities for Orange County residents and other general aviation users
Industry Competition To provide aviation facilities in Orange County that encourage and allow County residents and businesses to take advantage of the cost savings of a fully
competitive airline industry
Economic Growth To provide aviation facilities in Change County that could provide enhanced support to major segments of the Orange County economy such as tourism that
depend heavily on the ready availability of air transportation services
Business Activities To provide aviation facilities that encourage the location or relocation of business headquarters or activities to Orange County by assuring local air transportation
facilities that can provide ready access to the national and international air transportation systems

Existing Land Use Restrictions To take maximum advantage of the historical compatible land use regulation that has existed around MCAS El Toro
General Plan Implementation To implement an aviation facility at MCAS El Toro as contemplated in the Orange County General Plan as amended by Measure A

2.3.3 Ability Of The Proposed Project And Alternatives
To Satisfy The Project Objectives

The ability of the Proposed Project and the project alternatives to meet the project objectives is considered and analyzed in Chapter 8.0 of this EIR The CEQA Guidelines SS
15000 I 53 87 California Code of Regulations Title 14 Chapter 3 amended as of October 26 1998 provide guidance regarding consideration and discussion of alternatives to the
Proposed Project Section 15126.6 of the Guidelines states a An EIR shall describe a
range of reasonable alternatives to the project or to the location of the project which would feasibly attain most of the basic objectives of the project but would avoid or substantially

lessen any of the significant effects of the project and evaluate the comparative merits of the alternatives In terms of selecting a range of reasonable alternatives to evaluate CEQA
Guidelines 15126.6 says c Among the factors that may be used to eliminate
alternatives from detailed consideration in the EIR are i failure to meet most of the basic project objectives ii infeasibility or iii inability to avoid significant environmental

impacts Therefore the project objectives are an important basis upon which the reasonableness of the selected alternatives to the Proposed Project is determined

County of Change EIR No 573 Introduction 73
73 Page 74 75
2.4 PUBLIC COORDINATION AND PARTICIPATION
2.4.1 Notice of Preparation
The LRA issued a Notice of Preparation NOP for this EIR on October 16,1998 requesting responsible public agencies other interested public agencies and members of the general
public to provide input on the proposed Draft EIR No 573 for the Airport System Master Plan a Base Transition Plan and related land use plans regulations and actions for the
civilian development and operation of a commercial airport and use of the site of MCAS El Toro The NOP invited comments from public agencies and the interested public prior to
December 18 1998 The NOP and NOP Distribution List are included in Appendix A and the comments received on the NOP are in Appendix B In addition the LRA conducted a
public workshop to explain the environmental process for the project describe the Proposed Project and project alternatives and answer questions from the public The workshop was
held on December 2,1998 at the Orange County Board of Supervisors Hearing Room Hall of Administration

The County received a substantial number of comments in response to the NOP Appendix B contains the full text of the letters and cards received The following list identifies the
general subjects that were most frequently raised in the comments
Aesthetics Light and Glare Air Quality
Airport Operations Alternatives
Biological Resources Bird Strikes
Connector between JWA and OCX Construction Impacts
Cumulative Impacts Demographics
Discretionary Actions Economics
Equestrian Environmental Baseline
Financing Funding Fuel
General Plan Growth Inducement
Hazardous Materials Housing Balance Effects on Homeless
Hydrology and Water Quality Interim Uses
John Wayne Airport

Jail Facilities Land Use
Landfill On site Market Implications
Mitigation Measures Millennium Plan
Noise other Airports
Phasing Project Description
Project Objectives Public Services and Utilities
Property Values Quality of Life Economic Impact
Recreation Regulatory Setting
Safety and Public Health Socioeconomics
Tiering of EIR Thresholds of Significance
Traffic and Circulation Unbuilt Infrastructure

Introduction County of Orange EIR No 573 74
74 Page 75 76
LRA staff and the planning and environmental consultants have reviewed and considered all of the comments received on the NOP as part of the preparation of the EIR and technical
studies The comments received on the NOP are included as Appendix B to the Draft EIR and therefore will be available to the Board of Supervisors in connection with its
consideration of and any decisions regarding the Proposed Project and EIR

2.4.2 Public Scoping Meeting
As described above the County of Orange held a public workshop for the NOP to prepare this EIR The meeting was held on December 2 1998 in the County of Orange Hall of
Administration 10 Civic Center Plaza Santa Ana California The purpose of the meeting was to receive public comments regarding the environmental topics issues and
considerations to be analyzed in the EIR The County has considered the comments from the public meeting in combination with the written comments submitted by the public and
several public agencies in response to the NOP and the conclusions of the Initial Study review of potential environmental issues Appendix A to identify the environmental issues
to be addressed in this EIR The public comments made at the scoping meeting are included in Appendix A

2.4.3 Distribution of the Draft EIR
In accordance with CEQA Guidelines Sections 15086 and 15087 this Draft EIR is distributed to all State federal and local agencies including Responsible and Trustee

Agencies that are responsible for discretionary actions related to the Proposed Project any cities that border the project boundaries at both JWA and MCAS El Toro and
transportation planning agencies that have transportation facilities within their jurisdictions that could be affected by the Proposed Project The DEIR includes Volumes 1,2A 2B and
3 and Appendices A through M The text and tables of the EIR sections are contained in Volumes 1 2A and 2B and the figures are contained in Volume 3 These and related
documents are available for public review as described in Chapter 1.0 of this EIR Members of the public may also purchase copies of the Draft EIR and any or all of the EIR
Appendices the ASMP the reports listed in Table l 1 and the Base Transition Plan by foIlowing the instructions contained in the Preface to this EIR

2.5 RELATIONSHIP TO FEDERAL ENVIRONMENTAL PROCESSES
While CRP FEIR No 563 was being prepared the DON initiated preparation of its base disposal Environmental Impact Statement EIS consistent with the requirements of the
National Environmental Policy Act NEPA The DON disposal EIS will analyze at least two aviation based alternatives and at least two nonaviation alternatives in addition to a No
Action Alternative These alternatives were formulated in response to comments received during the federal scoping process for the EIS The DON EIS is anticipated to address
impacts associated with federal disposal and conveyance of the MCAS El Toro facility

County of Change EIR No 573 Introduction
2 15 75
75 Page 76 77
FAA also intends to prepare additional NEPA analysis addressing the County's proposed Master Plan and ALP The FAA NEPA analysis will be used in connection with FAA's
consideration review and acceptance or approval of the ASMP ALP funding requests under federal grant or other statutes and related actions The FAA will also address the
project's conformity with the Clean Air Act
The DON has also been working toward compliance with the Resources Conservation and Recovery Act RCRA and the Comprehensive Environmental Response Compensation and
Liability Act CERCLA The BRAC Cleanup Plan for MCAS El Toro is updated annually to keep the community informed of the status of identification and remediation of hazardous
materials and hazardous wastes located on the premises Further discussion of this process is provided in Section 4.16 of this EIR

Introduct ion County of Orange EIR No 573 76
76 Page 77 78
3.0 DESCRIPTION OF THE PROPOSED PROJECT
3 1 INTRODUCTION AND PROJECT SUMMARY
The Proposed Project consists of various actions related to the approval adoption and implementation including construction and operation of 1 an Airport System Master Plan
for Orange County ASMP published separately as Draft Airport System Master Plan for John
Wayne Airport and Proposed Orange County International Airport December 1999 and 2 a Base Transition Plan BTP for former Marine Corps Air Station MCAS El Toro

El Toro or the base published separately as Draft Base Transition Plan November 5 1999 BTP

The ASMP contemplates a two airport system in Orange County with commercial air carrier and general aviation supported and occurring both at JWA and OCX The ASMP is a
combined development and operations plan which has three principal components
an Airport Master Plan for the development and operation of an international commercial air carrier airport at the El Toro site OCX

ii a land use development plan for El Toro including various nonaviation activities that are airport compatible public uses or public or private uses which would provide
revenue support to the development and operation of aviation infrastructure and
iii an Airport Master Plan for John Wayne Airport Orange County JWA Orange
County's current commercial air carrier airport

Collectively the ASMP and the BTP are sometimes referred to in this EIR as the Project or the Proposed Project Table 3 9 presents a detailed list of all three components of the
ASMP Both the ASMP and the BTP have been circulated and made available for public review concurrently with this EIR and they contain additional detail regarding the
circumstances related to and the proposals constituting the Proposed Project
A graphic representation of the portion of the ASMP that would be implemented and operated at the site of former MCAS El Toro is provided in Figure 3 l A parcel map of the
Proposed Project at El Toro 3,722 acres keyed to the list of project components and activities contained in Table 3 9 is presented in Figure 3 2 A graphic representation of the
JWA portion 504 acres of the ASMP is presented in Figure 3 3
The BTP proposes various interim nonaviation uses of certain existing buildings facilities and land at El Toro until those facilities are required for implementation of the ASMP The
BTP contemplates a continuation of the existing Community Service Program by which the County under a lease agreement with the United States Department of Navy DON is
operating eight existing facilities on the base including the Local Redevelopment Authority LRA office the golf course the existing stables child development centers a recreational
vehicle storage area the former Officer's Club and a pool see BTP Exhibits C and D In addition the BTP proposes the continuation of certain existing agricultural leases on base

County of Orange ER No 573 Description of the Proposed Project 77
77 Page 78 79
property and the commercial or public use leasing of a total of 46 existing buildings or
activity areas see BTP Exhibits E and F under a master lease with DON

The Proposed Project is anticipated to be built out over a 20 year period commencing upon adoption of the ASMP and BTP and certification of final EIR No 573 with build out
anticipated to occur by 2020 In compliance with CEQA this EIR compares the impacts of the Proposed Project and determines the significance of those impacts against the conditions
existing during the year when the Notice of Preparation NOP for this EIR was issued 1998 In addition the project impacts are compared against a no project no activity
alternative The no project comparison appears at the end of each impact category analysis in Chapter 4.0 of this EIR and that comparison is summarized in Chapter 8.0
Alternatives of this EIR
Consistent with traditional airport master planning practice the Proposed Project is also defined and analyzed as occurring in incremental five year phases which in this EIR and
the relevant and related project planning documents are defined as follows
Phase 1 EIR Certification 2000 to 2005
Phase 2 2006 to 2010
Phase3 -2011 to2015
Phase 4 20 16 to 2020
The specific project components are identified in this chapter with reference to the specific phase of the project when implementation of the project component is anticipated A
graphic representation of the El Toro portion of the Proposed Project showing the anticipated phasing of project implementation is presented in Figure 3 4 Where reIevant to
the impacts analysis each impact category discussed in Chapter 4.0 of this EIR identifies all project impacts i e the build out 2020 project as well as those impacts anticipated to
occur in each phase of the Proposed Project One of the specific purposes of providing this
phasing analysis is to afford maximum flexibility to the Board of Supervisors in the scope of project approval

Implementation of the Proposed Project would occur as soon as this EIR has been certified under CEQA the Board of Supervisors has approved the relevant plans and planning
actions and at least with respect to the El Toro portions of the project the County has received legal authority from the DON to proceed with the reuse of the base
Implementation of the JWA components of the project could begin immediately after certification and Board of Supervisors approvals The federal authorization to commence
implementation of the El Toro components of the project could occur in the form of a deed transfer or
as some form of lease to the County pending completion of the deed transfer process The DON is currently completing the necessary NEPA processes required to allow

County implementation of its base reuse plans for El Toro

Description of the Proposed Project County of Orange EIR No 573 78
78 Page 79 80
Interim civilian aviation uses of the base could be implemented immediately after e ir certification and completion of the DON disposal Record of Decision ROD as requests to
initiate civil aviation services or activities are received During Phase 1 of the Proposed Project and prior to completion of the first phase of the new terminal building anticipated
to occur in July 2005 existing facilities at the base would be used or converted on an interim basis to accommodate commercial passenger air cargo and general aviation activities
None of those activities are anticipated to result in air activities commercial or general aviation exceeding the level of activity forecast for the end of Phase 1 of the project the
2005 forecasts The Phase 1 environmental impacts analysis therefore is assumed in this EIR to account for any such interim aviation activity

Interim civilian nonaviation uses at the base are the subject of the BTP
3.1 .1 Airport System Master Plan
The Airport System Master Plan consists of an Airport Master Plan for a civilian commercial airport at El Toro El Toro Airport Master Plan a land use development plan
for El Toro including various nonaviation activities that are airport compatible or would provide revenue support and an Airport Master Plan for John Wayne Airport JWA JWA
Master Plan A detailed list of the anticipated project improvements both at El Toro and JWA is contained in Table 3 9

The JWA Master Plan updates the County's 1985 Airport Master Plan for JWA Under the Proposed Project the 2020 forecast level of commercial passenger activity at JWA is 5.4
million annual passengers MAP which is less than is currently served at JWA Therefore the Master Plan Update for JWA does not contemplate any expansion of existing
commercial aviation facilities at JWA Rather the Master Plan Update projects are intended to expand the general aviation facilities and capacity at the airport All of the JWA reIated
project components are assumed to be completed by the end of Phase 2 of the Proposed Project 2010

The El Toro Airport Master Plan consists of a large number of phased project components described in more detail in the following portions of this chapter of the EIR The general
categories of the various project components land uses and improvements contemplated under the El Toro Airport Master Plan are summarized in Table 3 1 and listed in Table 3 9
in alphabetically designated categories A through Y The passenger related facilities contemplated by the Project including a new terminal building parking facilities access
roadways airfield improvements including aprons and the lengthening of alI four runways at El Toro and the relocation of two of the four runways as well as numerous airport support
facilities are designed to serve a forecast commercial passenger activity level of 28.8 MAP by 2020 Implementation and operation of the El Toro portion of the Proposed Project could
begin in the year 2000 and would continue through all four phases of the project as reflected in Figure 3 4 and Table 3 9

County of Orange EIR No 573 Description of the Proposed Project 79
79 Page 80 81
Table 3 1 Proposed Project Uses Acreages By Planning Area
Land Use PA PARCEL acrew Agriculture 5 la
37.17 Agriculture 3 lb 27.01

Agriculture 3 lc 13.03 Agriculture 3 ld 0.37

Agriculture 7 le 61.35
A Total qgw

Park uses 2 2a 191.79 Park Uses 2 2b 73.34

eFwJ fs
Golf Course North 3 3a 135.26 Golf Course North 3 3b 51.25

Golf Course South 7 3c 43.18 Golf course South 7 3d 28.44
Golf Course South 7 3e 8.80 Golf Course South 7 3f 17.24
Giqmitd qp
open spa 3 4a 0.78 open SPW 3 4b 0.53
Qps ak g E I
County Habitat Reserve 3 5b 20.64 qq q
aw

Restricted open space 8 t 12.98 Restricted Open Space 8 6b 4.64

Restricted Open Space 8 6c 68.83 Restricted Open Space 8 6d 32.45
Restricted 0pen Space 8 6e Il 42 Restricted 0pen Space 8 6f 16.29
Restricted Open Space 7 6g 38.02 Restricted Upen Space 7 6h 9.14

ppwiQ by gum
Marshbum Retarding Basin 5 7 38.87 l ke ad g Tptd
w

Airfield Total 8 8 1,120.49 AiWT I
w

Parking 5 9a 63.65 Terminal and Parking l 9b 481.10

T inrt I ig T bpt J
Airport Shuttle Bus Yard 4 10a 12.53 Airport Transportation Center 4 1Ob 9.34

Tkmtqpm ti Tad gcs7
Note Code reference is to Land Use Plan figure Original Source The Planning Center

4 lla 3 l lb 137.59 56.08
lf uy
In flight Catering 2 12a AviationlIndustrial Related 2 12b

Control Tower 2 12c FBO Corporat e Aviation 2 12d

t Zt Maintenance 2 12e 3 12f Airline Maintenance 342g
Ground Services Equipment 4 12h Fuel Storage 4 12i
Aviation Support 4 12j ^ x ~ I I ~Aq li ll sp ti Totit

17.07 99.49
4.00 54.28
4.00 25.71
46.4 1 13.54

14.30 5.45

w
Vehicle Maintenance Yard 5 13a 53.84 Food Distribution Warehouse 5 13b 11.75

lRWD Reservoir and Pumping 3 13c 5.73 Fire Station 3 13d 1.20
California Air National Guard 3 13e 24.05 Homeless Sewice Providers 4 13f 28.29
IRWTI Facility 7 13g 9.00 Fire Station 4 13h 1.00

mWFfiw Tw t 6
Business Park 7 14a
Business Park 7 14b Business Park 7 14c

Business Park 7 14d rnsh hdc TGtal
i lI

Wildlife Habitat Area 3 15a Wildlife Habitat Area 3 15b

Wildlife Habitat Area 3 15c Wildlife Habitat Area 3 15d
Wildlife Habitat Area 7 15e Wildlife Habitat Area 7 15f
Wildlife Habitat Area 7 15g W ll bi t Area T l

6.24 1 3 .4 1
34.07 33.05
ML77
13.09 29.09

42 18.57
14.15 20.22
5.56 lr13.64

Cultural Institutional 2 16 81.53
Q wm m 8133

Description of the Proposed Project County of Orange EIR No 573 80
80 Page 81 82
Portions of the base are planned for various nonaviation uses which have been selected because in addition to providing economic social and recreational benefits and
opportunities to Orange County they are compatible with the planned commercial aviation use and would in some cases provide revenue support to the civilian redevelopment of the
base and the development and operation of a commercial airport at El Toro

3.1.2 Base Transition Plan
The BTP applies only to the El Toro site and would be implemented by a master lease or comparable agreement between the County and DON anticipated to be approved by July
2000 The principal purposes of the BTP are to define the caretaker activities anticipated by the County until it acquires title to the base property at El Toro and to plan for and make
use of certain existing buildings and facilities at El Toro for civilian nonaviation interim uses until those buildings or facilities are required for or demolished to accommodate
construction and implementation of the ASMP at El Toro The BTP would continue at least through Phase 3 of the Proposed Project 2015 and possibly into Phase 4

3.2 PROJECT LOCATION
The Proposed Project area encompasses approximately 3,722 acres of the lands and facilities of MCAS El Toro an area generally bounded by Interstate 5 I 5 Alton Parkway the
Eastern Transportation Corridor ETC and the Foothill Transportation Corridor FTC Approximately 970 acres of the existing MCAS El Toro property is expected to be
transferred to another federal agency The project area also includes County owned lands and properties comprising JWA generally bounded by Interstate 405 I 405 State Route 55
SR 55 SR 73 MacArthur Boulevard Campus Drive Main Street Bristol Street and Red Hill Avenue in the City of Newport Beach California Figure 3 S In addition to these
major highway facilities local street access is shown on Figure 3 6

3.3 PROJECT OVERVIEW
The Proposed Project is an Airport System Master Plan for Orange County The Orange County airport system would include two publicly owned airports the existing JWA and the
proposed OCX airport at the MCAS El Toro site The major components of the Proposed El Toro Project are the aviation component the nonaviation revenue support component and
the BTP Table 3 1 identifies all of the proposed on site land uses Commercial aviation activity at JWA is forecast to be reduced under the Proposed Project JWA will continue to
serve the bulk of the general aviation demand in the County OCX is proposed as a full service international passenger and cargo facility with an estimated passenger level of 28.8
MAP The Proposed Project improvements at UCX consist of 1 the facilities necessary to accommodate projected aviation demand and 2 additional improvements that will provide
revenues to support the aviation activities as well as provide airport compatible uses including needed parklands public facilities and other recreational activities The second

County of Orange EIR No 573 3 5 Description of the Proposed Project 81
81 Page 82 83
category of uses is referred to in this report as airport compatible and revenue supporting uses
3.3.1 OCX Proposed Aviation Facility Improvements
The OCX aviation component includes four runways a passenger terminal complex and supporting facilities for domestic and international passenger service air cargo general
aviation and aviation related uses The passenger terminal complex will be located in Planning Area PA 1 refer to Figure l l the northeast quadrant of the airport site with
the primary entry at Sand Canyon Avenue and Trabuco Road Figure 3 6 In addition to the multi level terminal this planning area will include a parking structure hotel and other
passenger serving facilities such as car rental facilities
The Master Plan improvements at OCX include the following
Aviation Facilities and Infrastructure
Runway Protection Zone RPZ Easements Backbone utility systems
Airfield Lighting and navigational aids
Terminal apron and remain overnight RON aircraft parking Terminal building area
Terminal vehicle parking and support areas Terminal access and roadways
Non terminal roadways West cargo area
East cargo area General aviation area
In flight catering area Air traffic control tower ATCT
Airport rescue and fire fighting ARFF facility Aviation industrial and related area
Airport maintenance facilities Aircraft maintenance area
Airport transportation center Airport shuttle bus maintenance facility
Fuel delivery storage and distribution facility Ground support equipment GS E
Environmental facilities Support systems facilities and equipment

The proposed Master Plan improvements are listed in Table 3 9 giving the Planning Area location phase of development and the entity responsible for the development A detailed
description of the Proposed Project facility improvements is contained in the Airport Svstem Master Plan for John Wayne Airport and Proposed Orange County International Airport

Description of the Proposed Project County of Orange EIR No 573 82
82 Page 83 84
SAMP OCAA December 1999 That document also illustrates the locations and proposed configurations of the facility improvements
Proposed Master Plan improvements to OCX are illustrated in the ASMP on a set of largescale plans called the Airport Layout Plan Sheets ALPS The ALPS are graphic
presentations drawn to scale of existing and planned airport facilities their location on the airport site and the pertinent clearance and dimensional information required to show
relationships with applicable standards
The airport operator must have a set of FAA approved ALPs in order to receive federal financial assistance under the terms of the Airport Improvement Program ALP of the
Airport and Airway Improvement Act of 1982 The maintenance of an up to date plan and conformity to the plan are obligations of an airport on which federal funds have been
expended under the ALP and previous federally funded airport development programs
The ALP serves as a public document which is a record of aeronautical requirements both present and Future and as a reference for community actions on land use proposals and
budget and resource planning As a record of aeronautical requirements it is referred to by the FAA in its review and findings on proposals involving the development of other nearby
airports and objects that may affect the navigable airspace
The set of OCX ALPS which are submitted to the FAA for their review and approval consists of 18 sheets Reduced ALPS for OCX are contained in Appendix C of the ASMP

The Proposed Project improvements for OCX are summarized below
3.3.1 .1 Runway Protection Zone RPZ Easements
FAA standards strongly encourage airport owners to obtain a controlling interest in the airport's RPZs either through fee acquisition or avigation easement Avigation easements
will be obtained for the portions of the RPZs not currently on Base property RPZs for Runways 16L and 7R see Figure 3 l and Appendix C of ASMP Technical Report 17 The
avigation easements will give the airport owner the right to conduct flights over the property carrying the easement and prohibit the property owner from construction and uses on the
property that would be in violation of FAA standards

3.3.1.2 Backbone Utility Systems
Backbone utility systems provide the primary utility infrastructure to serve the airport Backbone systems include electrical power natural gas domestic potable water
reclaimed non potable water sanitary sewer storm drain cable television and communications see ASMP Technical Report 14 and Appendix C of ASMP Technical
Report 17

County of Orange EIRNo 573
3 7 Description of the Proposed Project 83
83 Page 84 85
3.3.1.3 Airfield
Implementation of the Proposed Project will entail the reuse of two existing MCAS El Toro runways 16R 34L and 7R 25L and the construction of two new runways 16L 34R and
7L 25R each of which will parallel its existing counterpart Construction of new runways is required because the centerline separation between both pairs of existing parallel runways is
500 feet which is 200 feet less than the FAA standard for conducting simultaneous visual operations by large aircraft FAA 1989 Because the separation distance between the existing
MCAS El Toro parallel runway pairs does not meet current civilian airport standards for independent simultaneous aircraft operations in clear weather conditions each new runway
will be constructed at an offset distance from its parallel twin sufficient to meet FAA requirements for operation under these conditions The proposed airfield improvements at
OCX would include the following
l The north end of existing Runway 16R 34L will be extended by approximately 1,500
feet and the south end of the runway by approximately 900 feet to an overall length of approximately 12,400 feet

l New Runway 16L 34R will be constructed at a centerline separation of 800 feet from
existing Runway 16R 34L The overall length of the new runway will be approximately 12,100 feet

l To meet FAA criteria for new runway longitudinal gradient slope the central portion
of existing Runway 7R 25L will be overlain with a new surface its eastern end will be lowered and its western end raised In addition the western end of 7R 25L will be

extended by approximately 1 150 feet to a total length of 9,150 feet
l A new Runway 7L 25R 9,150 feet in length will be constructed at a centerline
separation of 700 feet from existing Runway 7R 25L with a gradient similar to that of reconstructed Runway 7R 25L

l For each runway new parallel taxiways and associated exit taxiways will be constructed
3.3.1.4 Lighting and Navigational Aids
Airfield lighting improvements include runway and taxiway edge lights approach light systems runway centerline lighting airfield signage and an airport rotating beacon Navaid
improvements for OCX include precision instrument landing systems for Runways 34L and 34R installation of Airport Surveillance Radar ASR and relocation of a VHF Omnirange
Distance Measuring Equipment VOR DME facility Additional supporting facilities include the airport segmented circle Automated Weather Observation Station Runway
Visual Range RVR equipment and wind cones

Description of the Proposed Project County of Orange EIR No 573 84
84 Page 85 86
3.3.1.5 Terminal Apron and Remain Overnight RON Aircraft Parking
The proposed terminal apron shown on Figure 3 7 is designed to accommodate all current commercial aircraft and potential future aircraft larger than B777 or B747 called new large
airplanes NLA Between concourses dual taxilanes will be provided to minimize aircraft congestion in the gate areas Sixteen RON aircraft parking positions will be provided on the
north side of the terminal apron and allow for only a portion of the overnight aircraft parking requirements Additional RON parking positions will be located in Planning Area 2

3.3.1.6 Terminal Building Area
The proposed terminal development will consist of a three level main terminal building with six two level pier concourses The terminal will be served by a three level road and curb
system and a multi level parking garage connected by pedestrian bridges and underpasses to the terminal

Figure 3 7 illustrates the proposed terminaI development A conceptual rendering of the terminal area is shown in Figure 3 8 A conceptual cross section shown on
Figure 3 9 illustrates the three level terminal building and road system The pedestrian bridge and underpass connection between the terminal and multi level parking garage are
also shown

3.3.1.7 Terminal Vehicle Parking and Support Areas
A number of areas are allocated in the Proposed Project to provide vehicular parking for terminal related traffic including public parking areas rental car facilities and employee
parking Public parking will be provided in a parking structure adjacent to the Terminal building inside the Terminal Loop Road in a long term parking lot west of the Terminal
Loop Road in Planning Area 1 and eventually in a remote parking lot in the Northern Panhandle area Planning Area 5 An employee parking lot will be developed south of the
terminal complex and eventually in the remote lot in PA 5 A consolidated Rent A Car RAC facility will be developed north of the long term parking lot in PA 1 to accommodate
approximately six on site rental car operators

3.3.1.8 Terminal Access and Roadways
The proposed terminal access roadway improvements are identified on Figure 3 10 and in the ASMP

The major components of terminal access and circulation are as follows
1 Primary Terminal Access Primary access to the OCX terminal facility will be provided by elevated three lane direct connectors between State Route 133 SR 1 33
along the westerly boundary of the OCX property and the Terminal Loop Road The

County of Orange EIR No 573 Description of the Proposed Project 85
85 Page 86 87
SR 133 connectors will accommodate traffic from I 5 I 405 and south SR 133 At the south end of the Terminal Loop Road separate access ramps will direct traffic to
the three level terminal curbside roadways upper level for departure middle level for arrivals and lower level at grade for commercial vehicles Separate access
ramps will also be provided for the parking structure and the terminal hotel both of which are located inside the Terminal Loop Road At the north end of the Terminal
Loop egress ramps from the terminal curbside roadways direct traffic to the outbound SR 133 connector Recirculation traffic from the three levels could use the
recirculation ramps which merge into the six lane Recirculation Roadway Egress and recirculation ramps will also be provided for the parking structure The on site
terminal hotel is also provided with a recirculation ramp

0 ii Secondary Terminal Access from the North Terminal traffic coming from north SR133 north Sand Canyon Avenue and Irvine Boulevard could use the four lane
Terminal Way Inbound traffic will proceed southbound along the Terminal Way through a ramp that merges with the inbound SR 133 connector before reaching the
Terminal Loop Road Two diverge ramps are provided prior to the outbound SR133 connector to accommodate outbound traffic on the Irvine Boulevard Access
Road A loop ramp diverges to the right and connects to the intersection of Terminal Way and RAC LT Perimeter Road on the east leg This ramp is expected to be used
primarily by traffic coming from the upper level Departure and middle level Arrivals roadways exiting at Irvine Boulevard The other ramp diverges to the left
and also connects to the same intersection on the south leg This ramp is expected to be used primarily by traffic coming from the lower level Commercial roadway and
the parking structure

111 Secondary Terminal Access from the South Terminal traffic coming from south Sand Canyon Avenue could use Trabuco Road to access the OCX terminal facility
Inbound terminal traffic on Trabuco Road will turn left on the RAC LT Perimeter Road and turn right on the RAC LT Spine Road An access ramp from the RAC LT

Spine Road merges with the inbound SR 133 connector before reaching the Terminal Loop Road Outbound terminal traffic exiting at Trabuco Road could use either of
the two diverge ramps prior to reaching the outbound SR 133 connector Upon reaching the intersection of Terminal Way and RAC LT Perimeter Road outbound
traffic will use the RAC LT Perimeter Road in order to exit at Trabuco Road
iv Rental Car Long Term Parking Access Inbound SR 133 connector traffic bound for the RAC facilities or the long term parking lot will use a diverge ramp that connects
to the RAC LT Spine Road Inbound traffic using the Irvine Boulevard Access Road or Trabuco Road could use the RAC LT Perimeter Road to reach these areas From
the RAC or long term parking lot passengers could then take a shuttle to the terminal Vehicles exiting on the SR 133 connector will use the RAC LT Perimeter
Road northbound and past the Terminal Way intersection to a loop ramp that merges with the outbound SR 13 3 connector

Description of the Proposed Project County of Orange EIR No 573 86
86 Page 87 88


0 V Ernplovee Parking Access Employee parking will be provided south of the OCX terminal complex Employee parking access will be via Air Cargo Way and the
employee parking road From the parking lot employees could either walk to the terminal complex or take the employee shuttle Employee shuttles will use the south

Terminal Service Road which connects to the lower level Commercial roadway
vi Remote Public employee Parking Lot Access Access to the remote public and employee lots to be developed in PA 5 will be provided by Irvine Boulevard via a
northward extension of the Terminal Way
An El Toro access option considered during the later part of the planning process proposes to construct an ETC SR 133 interchange at Trabuco Road in addition to the direct
connectors that are proposed between the ETC and the OCX air terminal complex This optional concept shown in Figure 3 11 would provide ramp access to Trabuco Road from all
directions on SR 133 Due to the short distance between Trabuco Road and the existing I5
R 1 33 transition ramps the ramps to and from SR 133 south of Trabuco Road would need to be grade separated braided with the existing I 5 connector ramps in order to

provide access from Trabuco Road to the I 5 Freeway both north and south of SR 133 as well as to SR 133 south of the I 5 Freeway

For the Trabuco Road RTC interchange concept it is also assumed that Air Cargo Way would not connect with Sand Canyon Avenue in place of the existing Marine Way but rather
would extend north to Trabuco Road potentially along an alignment that is outside of the MCAS El Toro property boundary In such a case the Trabuco Road interchange would
serve as the direct fink between the proposed air cargo facilities and the regional
freeway tollway system i e instead of the Sand Canyon AvenueA 5 interchange The southbound ETC ramps would connect to Trabuco Road at a three way intersection with

ramp traffic utilizing the south leg of the intersection whereas the northbound ETC ramps would connect to Trabuco Road at a four way intersection the north leg of which would be
the Rental Car Long Term Parking Perimeter Road the south leg of which would be utilized by ETC ramp traffic and the east leg of which would connect to Air Cargo Way

3.3 1 .9 Non Terminal and Other Roadways
Non terminal roadways provide access to other aviation and revenue supporting uses in the El Toro site The non terminal roadway improvements are described in the ASMP and in
Technical Report 13 Ground Access Concepts Evaluation OCAA 1999 and include improvements to Air Cargo Way Marine Way East and West Access Roads in Planning
Area 2 and access roadways to other Planning Areas Other transportation improvements that are part of the Proposed Project at MCAS El Toro include Figure 3 10

l Connector ramps from ETC to the airport terminal area
l Widening of Trabuco Road from Sand Canyon Avenue to Terminal Way and
l Widening of Marine Way off site from Sand Canyon Avenue to Terminal Way

County of Orange EIR No 573 Description of the Proposed Project 87
87 Page 88 89
3.3 1 10 Cargo Facilities
Two sites at OCX one in Planning Area 3 and one in Planning Area 4 totaling 180 acres have been identified for air cargo use Together the sites will accommodate 42 aircraft
parking positions 2 040 000 square feet of cargo buildings 290 truck docks 190 truck staging spaces and 1,900 automobile parking spaces in 2020 The proposed cargo facility
arrangement offers extreme flexibility The planned design features a contiguous assembly of cargo buildings in the west cargo area and two smaller buildings in the east cargo area
The modularized buildings will accommodate the great diversity of space needs of express general cargo and freight forwarding activity The space will also accommodate United
States Customs and the United States Postal Service offices The building structures may be one or two story designs dependent on specific tenant needs for processing and storage
areas

3.3.1 .1 1 General Aviation Area
General aviation facilities will be located in Planning Area 2 refer to Figure 3 l Proposed general aviation improvements will include the following

i Fixed base operator FBO facilities including hangars offices and aircraft parking aprons FBOs provide services such as fueling and maintenance for airplanes based
at the airport and transient airplanes
ii Transient aircraft parking aprons
iii Sites for government and corporate users
iv General aviation fuel storage area
Helicopter takeoff and landing area s
Pavements and setbacks for aircraft parking in the corporate general aviation area will be designed to accommodate fixed wing aircraft as large as the Boeing Business Jet as well as
a variety of helicopters used in law enforcement medical transport media services and other uses

3.3 l 12 In Flight Catering Area
The site identified for in flight catering at OCX refer to Figure 3 l is located at the northern comer of Planning Area 2 This site will be served by the East Access Road which
will intersect Irvine Boulevard near the site It will also have a short and direct access route to the terminal area on the service road for catering trucks The in flight catering site will
accommodate three catering firms with relatively large scale operations typical of an international airport Each site will be approximately 4.7 acres and can accommodate new

Description of the Proposed Project County of Orange EIR No 573 88
88 Page 89 90
flight kitchens as large as 100,000 square feet in two levels Catering facilities will be developed by each of the tenants
3.3.1.13 Air Traffic Control Tower ATCT
The existing military ATCT in Planning Area 2 will be used for air traffic control at OCX until a new FAA tower is built The new tower site must be determined through a

comprehensive siting study by the FAA and the Local Redevelopment Authority LRA The FAA has stated that a tower siting study is normally done after the master plan is
completed and the FAA establishes the appropriate level of tower to be built
In this stage of planning it is assumed that the FAA will construct a new ATCT at OCX in Phase 1 A site in the Aviation Industrial and Related area in Planning Area 2 is suitable for
phase 1 construction This site meets all tower siting criteria and could accommodate the tallest tower anticipated to be needed at OCX To meet the security requirements a security
wall would be constructed 100 feet from the tower and base buildings This design will require an area of approximately four acres at this site ATCT construction in Phase 1 will
include a 5,0000 square foot base building a control tower and 40 vehicle parking spaces

3.3.1.14 Airport Rescue and Fire Fighting ARFF Facility
The facility formerly housing the crash fire rescue operations at MCAS El Toro is located in Planning Area 4 near the intersection of the runways The building encompasses 11,440
square feet has six bays and was built in 1957 The building is in good condition and could serve as the OCX ARFF station through Phase 2 In Phase 3 a new ARFF facility will be
constructed in Planning Area 2 on a four acre site at the intersection of the runways refer to Figure 3 1 This new facility will have vehicle access from Irvine Boulevard by way of the
future East Access Road and secondary access streets The ARFF station will be adjacent to the airport service road and will have direct access to all airfield areas the passenger
terminal and other airport quadrants via two fire access roads and the taxiway system The new ARFF facilities will include a 15,700 square foot building

3.3.1 .1 5 Aviation Industrial and Related Area
The site identified for aviation industrial and related facilities at OCX is located south of the in flight catering area in Planning Area 2 The 102 acre area will accommodate RON needs
through 2020 16 acres a ten acre aircraft maintenance site the ATCT site four acres and a variety of aviation industrial uses 72 acres

3.3.1.16 Airport Maintenance Facilities
The long term site for airport maintenance and facilities management will be at the east end
of Planning Area 3 Existing office buildings and shops in Planning Area 2 will be used for airport maintenance during Phases 1 and 2

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3.3.1 .17 Aircraft Maintenance Area
The primary site identified for aircraft maintenance facilities at OCX 45 acres is located west of the airport maintenance area in Planning Area 3 A second smaller site 10 acres is
located in the aviation industrial and related area at the north end of Planning Area 2 The proposed primary aircraft maintenance site will accommodate three maintenance facilities
and the smaller site will accommodate one facility

3.3.1.18 Airport Transportation Center
The Airport Transportation Center ATC will be constructed on seven acres in the southeast comer of Planning Area 4 This site is adjacent to the Santa Fe Railroad tracks diagonally

across from the Irvine Transportation Center ITC The ITC is a multi modal transit facility providing an interface between rail and bus patrons Air passengers arriving at the ITC via
public bus Amtrak Metrolink or the CenterLine a new urban rail system proposed by the OCTA will cross the railroad tracks by means of a pedestrian overcrossing Shuttle buses
operating approximately every five minutes will transport passengers between the ATC and the terminal complex

3.3 1 .19 Airport Shuttle Bus Facilities
The airport shuttle bus system will provide transit service to the terminal complex and other airport activity centers There will be separate shuttle routes to the long term parking lots
the RAC area employee parking and the ATC The shuttle bus maintenance facility is proposed to be located in Planning Area 4 on an 1 l acre site A 30,000 square foot
maintenance building will have two levels The facility will include administration offices storage for parts and fluids bus wash fully equipped machine shop and lockers restrooms
and break areas for personnel There will be a 25,500 square foot outdoor storage and parking area next to the maintenance building This space could accommodate 25 vehicles
with the other five vehicles in the shop and allow for maneuvering This area will also include a bus wash and a separate area for employee parking A natural gas fueling facility
will also be located in the outdoor storage and parking area and will provide sufficient capacity to supply a fleet of 30 vehicles for three days service

3.3 1 .20 Fuel Delivery Storage and Distribution Facility
A bulk fuel storage facility will be located on an 1 l acre site in Planning Area 4 The site will have a truck unloading area with 11 unloading positions plus additional space for truck
staging and spare positions as needed This fuel storage site would also include three pumps to distribute fuel from the truck unloading positions to the bulk storage tanks an
operations pump control building and a building for spill response and supplies An additional pump and appurtenant pipelines would also be provided for spare pumping
capacity as needed Since fuel delivery by truck would operate on a daily basis a four to five day fuel supply will be needed Six 100 foot diameter 30 foot high aboveground
storage tanks will be provided for a five day supply of fuel in 2020

Description of the Proposed Project County of Orange EIR No 573 90
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3.3.1.21 Ground Support Equipment GSE
3.3.1 .23 Support Systems Facilities and Equipment
The 14 acre site identified for ground handling facilities is at the western end of Planning Area 4 adjacent to the parallel taxiway serving Runway 16L 34R The site will
accommodate three ground support equipment GSE facilities West of this site is a proposed location for an electrical substation to serve the GSE To enhance air quality GSE
operators will be provided with facilities that accommodate vehicles powered by alternative fuels such as electricity or natural gas

3.3.1.22 Environmental Facilities
Many environmental control facilities and construction procedures are included in the Proposed Project such as noise attenuation construction hydrant fueling systems blast
shields and erosion control Specific environmental control facilities and equipment that are not a part of other items described in this section but are included in the Proposed Project
are as follows
Oil water separators Oil water separators are designed to remove petroleum products from the storm water discharge of the airport Oil bearing wastewater can
result from relatively small but recurring discharges resulting from routine operations such as aircraft maintenance or cleaning It could also occur from a
catastrophic event such as a fuel oil spill due to human error or equipment failure The oil water separator is a stationary underground wastewater treatment vessel
filled with water internal baffles and coalescers that accelerate the oil water separation process Oil water separators will be installed at five strategic locations
along the storm drain system treating the storm water runoff from each of the aircraft parking aprons

ii Noise monitoring equipment As part of the noise mitigation program permanent noise monitoring equipment will be installed at OCX to measure aircraft noise and
provide a means to regulate noise consistent with the mitigation program The airport noise monitoring system will consist of multiple fixed noise monitoring
stations located off site in the vicinity of the airport linked to central processing equipment for computing and tabulating noise data

Support systems to be installed under the Proposed Project include a central security and communications system access gates and control systems and security fencing around the
entire airport These systems will consist of the following components

i Baggage handling security screening
ii i i Gate management system CUTE
iii Closed circuit and cable television CCTV and CATV

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iv
v
vi vii

viii
ix
0 X
xi
xii

Uninterruptible power supply UPS
Mechanical and electrical security and control systems SCADA
Master clock systems
Public address visual paging systems
Radio systems
Universal information exchange network UIEN
Central communications command and control facility
Computer assisted passenger screening CAPS system
Access control systems in compliance with FAR Part 107.14 including badging identification system and security fencing

3.3.2 Nonaviation Revenue Support Uses
Portions of the base are planned for various nonaviation uses that have been selected because in addition to providing economic social and recreational benefits and
opportunities to Orange County they are compatible with the planned commercial aviation use and would in some cases provide revenue support to the civilian redevelopment of the
base and the development and operation of a commercial airport at El Toro Throughout this EIR these aviation compatible and revenue supporting uses are sometimes collectively
referred to as Nonaviation Revenue Support Uses
The nonaviation revenue support component of the plan includes approximately 1,000 acres
on the airport site to be used primarily for a variety of open space recreation and agricultural uses as shown on Figure 3 12 Various public use facilities and a small business

park are also included All of these uses are described below by Planning Area refer to Figure 1 l and
by parcel number within each Planning Area refer to Figure 3 2 A specific listing of the land uses and acreages associated with these uses is included in Table

3 l
The Proposed Project also includes various uses requested through the Base Realignment and Closure Act BILK federal and state local homeless provider screening processes
conducted in 1995 The various agencies and organizations that were recommended to be accommodated in the adopted Community Reuse Plan CRP are identified in the
description of uses for each Planning Area where applicable

Description of the Proposed Project County of Orange EIR No 573 92
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3.3.2.1 Planning Area 1
The terminal complex will be located in Planning Area PA 1 a triangular area southeast of Irvine Boulevard and the ETC The proposed terminal facilities include passenger serving
uses such as parking hotel and the commercial airline terminal There are no nonaviation revenue support uses in Planning Area 1

3.3.2.2 Planning Area 2
PA 2 is located in the northeast quadrant of the site on either side of Irvine Boulevard Proposed on site nonaviation revenue support uses include a regional park Veterans
Regional Park along both sides of Irvine Boulevard and cultural educational and other institutional uses in the northern portion of PA 2

Regional Park
The Proposed Project includes Veterans Regional Park Parcels 2 2a and 2 2b which will encompass approximately 265 acres of the northeastern portion of Planning Area 2 Both
passive and active recreational facilities are proposed to incorporate the theme of the County's military history Development of the regional park amenities is anticipated to
begin during the final phase Phase 4 of project construction Completion of the park is likely to occur subsequent to the year 2020 depending on funding availability The primary
components of the proposed park are described below and shown on Figure 3 13

1

2
3

4
5

6

Events Center 40,3 13 square feet to be located in existing Building No 415 west of Irvine Boulevard This center would have rotating exhibits and animal shows and a
large grass area adjacent to the building for outdoor events Community Center 5,000 square feet Existing Building No 834 would be reused as
a Community Center with concessions meeting facilities reception hall and offices
Regional Park Headquarters 12,000 square feet Existing Building No 722 would be reused as the Park Headquarters This building is located just inside the park entrance

and will be used for park offices concessions bike skate rentals and meeting facilities
In Line Skating Facility The in line skating facility will offer two commercial skating rinks grandstands and a concessions administration building 2,000 square feet
Airplane Museum An indoor exhibit hall 5,000 square feet would be located just outside the main entrance to the Park and will house historical exhibits offices and
restrooms The outdoor exhibit space would show historical aircraft and associated equipment in an interactive environment Walking trails would meander through the
outdoor exhibit space and an amphitheater would be available for lectures and meetings
Equestrian Center The existing equestrian center will remain as is until Phase 2 of the Proposed Project years 2006 2010 During Phase 2 the southwest portion of the
existing equestrian site would be relocated to the northwest portion adjacent to Irvine Boulevard to accommodate realignment of an internal airport operations road The
amount of area for the equestrian center will remain the same as the existing facility

County of Orange EIR No 573 Description of the Proposed Project 93
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after project construction is complete The stables will continue to operate during the phased construction of the Proposed Project
Sports Fields Baseball softball and soccer fields are proposed to be located throughout the park site and many will be lighted for nighttime play The two existing
softball fields previously used by the military personnel will be incorporated into the park plan
Sports Courts Four tennis and four basketball courts are proposed to be provided in the park site
Trails Over 12 miles of new on site multiuse riding and hiking trails and Class I bikeways are proposed to be provided as part of the park plan Project proposed
improvements to the Irvine Boulevard streetscape adjacent to the Open Space Habitat Reserve area in the northeast provide for a 16 foot wide easement for a riding and
hiking trail on both the west and east sides of the street A separate 16 foot wide easement for a Class I bikeway is proposed on the east side of the street connecting
the Borrego Canyon Bikeway to the proposed Veterans Regional Park Landscape buffers 18 feet wide are planned to be located between the roadway and the separate
trails on both sides of the street A Class I bikeway is also planned along the eastern side of the proposed Airport Loop Road along the segment adjacent to the North
Championship Golf Course For that streetscape 30 to 35 foot landscape buffers are planned for each side of the road adjacent to the outer travel lanes On the east side of
the road a 30 foot landscape buffer separates the travel lanes and the bikeway Shelters Three group shelters and five family shelters are proposed to be provided
throughout the park These will be open air sheIters with picnic tables and barbecues and will accommodate up to 250 and 50 people respectively
Putting Course An 18 hole putting golf course is proposed with real grass water and sand traps A clubhouse with supplies snacks and clothing would be located adjacent
to the putting course Passive Play Areas Most of the regional park would consist of passive play areas for
day camping Most of the existing trees are proposed to be maintained throughout the site
Circulation and Parking A loop roadway is proposed to provide access to the park uses east of Irvine Boulevard A parallel roadway would provide access to commercial
recreation facilities west of Irvine Boulevard A total of 2,325 parking spaces is proposed throughout the park site

The MCAS El Toro Open Space Plan A Celebration of Orange County's History ASMP Appendix F The Planning Center 1999 provides several detailed graphics of the proposed
regional park and its components
One of the organizations accommodated in the adopted CRP through the BRAC screening processes is the American Riding Club for the Handicapped ARCH It is expected that the
ARCH would continue to provide its existing riding therapy program at the equestrian center within the proposed regional park subject to a lease agreement with the County of Orange

c

.0

Description of the Proposed Project County of Change EIR No 573 94
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cultural institutional Area
Cultural and educational institution uses are proposed in Parcel 2 l 6 in the northern portion of PA 2 The Cultural Institutional Center is an 82 acre site north of h vine Boulevard A
university is a potential lessee for the site to be used for a branch campus serving approximately 5,000 students It is estimated that approximately 545,000 gross square feet
of campus facilities would be needed to accommodate the student population as well as ancillary campus space for training child care and other services that may be provided by
other lessees These other ancillary uses have been included in the Proposed Project as a
result of the BRAC federal and state local homeless provider screening processes conducted in 1995 and were included in the adopted CRP The agencies or organizations and uses

proposed to be located in Parcel 2 16 are as follows
California State University Fullerton Saddleback Community College District for an 81 acre educational complex which would be accommodated in this Parcel subject to a
lease agreement with the County of Orange
California Baptist College for a satellite campus which would be incorporated into the
81 acre educational campus A lease agreement between the County of Orange and the educational campus lessee would contain language to ensure accommodation of this use

County of Orange Sheriff Coroner for a Classroom Training Center which would be incorporated into classroom space on the educational campus A lease agreement
between the County of Orange and the educational campus lessee would contain language to ensure accommodation of this use

Families Forward Inc for use of 25 no cost or low cost slots in a child care center if such a facility is developed as part of the educational campus A lease agreement
between the County of Orange and the educational campus lessee would contain language to ensure accommodation of this use

American Riding Club for the Handicapped for job training and warehouse space which would be incorporated into space on the educational campus A lease agreement between
the County of Orange and the educational campus lessee would contain language to ensure accommodation of this use

County of Orange Probation Department for a Family Resources Center to be included in a portion of Parcel 2 16
County of Orange Social Services Agency for a Children's Emergency Shelter Children's and Family Resource Center Transitional Shelter and Closed Files and
Support facility This facility would be similar in nature to the existing Orangewood Children's facility in Orange County and would be included in a portion of Parcel 2 16

County of Orange EIR No 573 Description of the Proposed Project 95
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3.3.2.3 Planning Area 3
PA 3 is located in the southeast quadrant of MCAS El Toro generally bounded by Borrego Wash on the east two runways on the west and north and a portion of Irvine
Boulevard Trabuco Road on the north with an additional triangle of land adjacent to the proposed federal Habitat Reserve Proposed Project nonaviation revenue support uses within
PA 3 include a County NCCP Habitat Reserve area a Wildlife Habitat Area along Borrego Wash africulture a championship length golf course a California Air National Guard
communications facility and a water reservoir tank and pumping station

Natural Habitat Open Space Areas
PA 3 includes a portion approximately 104 acres of the Proposed Project's Wildlife Habitat Area to be located in a linear design in Parcels 3 1 5 a b c and d and which will

continue into PA 7 Parcels 7 15e f and g This Wildlife Habitat Area will establish a core habitat area for sensitive species throughout the length of the site As a result the Wildlife
Habitat Area will provide valuable habitat for sensitive species and opportunities for animal movement in this area There is no existing substantial wildlife movement on the MCAS El
Toro site The Wildlife Habitat Area provides a buffer between natural areas and existing and planned land uses on the MCAS El Toro site and enhances the biological productivity
of the natural areas on and in the vicinity of the site
The development of the habitat area would be consistent with the FAA standards for minimizing wildlife contact
with aircraft To ensure that the habitat area is compatible with aviation operations a Resource Management Plan RMP will be adopted before

development of the habitat area The RMP will ensure among other things that adequate fencing will
be provided and artificial marshes and wetlands will not be created

The Wildlife Habitat Area originates at the boundary of the 970 acre federal Habitat Reserve
to the north and is aligned through the MCAS El Toro site along its eastern boundary in PA 3 and then terminates to the south in PA 7 at the I 5 Freeway The total Wildlife Habitat

Area is approximately 144 acres is 15,000 feet long averages 400 feet in width and is a component of Phase 4 of the Proposed Project The Wildlife Habitat Area has been
identified to provide wildlife habitat and to support coastal sage scrub species such as the coastal California gnatcatcher Coastal
sage scrub plant species that comprise the native indigenous plant communities that typically occur in local coastal sage scrub would be

established

At the northeasterly edge of PA 3 is the proposed 21 acre County of Orange NCCP Habitat Area Parcel 3 5b which was requested through the BRAC screening processes and
included in the adopted CRP A discussion of the NCCP program is provided in Section 4.9 Biological Resources

Description of the Proposed Project County of Orange EIRNo 573 96
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Agriculture
Approximately 41 acres in Parcels 3 lb c and d of PA 3 are proposed for agricultural use These proposed agricultural areas were requested by the County of Orange Sheriff Coroner
through the BRAC screening processes and included in the adopted CRP The land would be used for agricultural production to supply produce to the adjacent County of Orange
Musick Branch Jail facility

Golf Course
The Proposed Project includes an 18 hole golf course the North Championship Course Figure 3 12 in PA 3 located on approximately 187 acres The course is planned to be
operational within Phase 1 by the year 2005 The North Championship Course will be a Par 72 course located in Parcels 3 3a and 3 3b along the eastern boundary of the property
adjacent to the proposed Wildlife Habitat Area This course is designed to be 6,950 yards which would be the longest public course in Orange County Course facilities would
include an 8,000 square foot clubhouse and pro shop driving range practice putting greens maintenance buildings and 275 parking spaces The buildings fountains and porticos are
proposed to be of a Mission era design with brick and adobe walls and clay tile roofs The front nine at the east end of Runway 7125 will be a links style course using minimal
landscape materials The back nine will incorporate the existing trees from the existing Marine Memorial Golf Course

Public Facilities
PA 3 also includes a fire station a California Air National Guard communications facility a water storage tank and pumping station and right of way for a proposed roadway extension
Parcel 3 13d one acre is designated for a fire station to be operated by the Orange County Fire Authority This station is located adjacent to Irvine Boulevard near the future extension
of Alton Parkway
The agencies and organizations accommodated in the adopted CRP through the BRAC screening processes and included in the Proposed Project in PA 3 are as follows

l California Air National Guard for an approximately 53,500 square foot communications
and training facility in existing buildings in Parcel 3 13e approximately 24 acres subject to a lease agreement with the County of Orange

l Irvine Ranch Water District IRWD for an existing 11,000 square foot reservoir and
1,000 square foot pumping station on approximately six acres in Parcel 3 l 3c subject to a lease agreement with the County of Orange

l County of Orange Public Facilities and Resources Department for road right of way for
the proposed future extension of Alton Parkway between the federal Habitat Reserve and Parcels 3 lc 3 5b and 3 13C

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3.3.2.4 Planning Area 4
PA 4 is the southwest quadrant of the El Toro site and is bounded by two runways on the north and is adjacent to the City of Irvine PA 4 lies just northeast of the existing railroad
tracks and Barranca Parkway Proposed nonaviation revenue support uses in PA 4 include a fire station a rail maintenance yard long term and food distribution warehouse storage
and office uses operated by homeless service providers in the short term

Public Facilities
l Parcel 4 13h is designated for another fire station to be operated by the Orange County
Fire Authority subject to a lease agreement with the County of Orange

l Parcel 4 13f in PA 4 is planned for a 28 acre rail maintenance yard in the long term
expected to be constructed in Phase 4 of the Proposed Project The proposed raiI maintenance yard was requested by the Orange County Transportation Authority

OCTA and is included in the Proposed Project subject to a lease agreement with the County of Orange

At a typical rail maintenance and storage facility rail vehicles are regularly serviced and stored in the off peak morning and afternoon hours and during non operating hours
usually between 12 00 a m and 5 OO a m The maintenance and storage facility is typically located either in the middle or end of the system immediately adjacent to the
service tracks to allow trains quick entry and exit to and from the facility The southwest boundary of Parcel 4 13f is immediately adjacent to the existing railroad
tracks Maintenance activities include routine scheduled inspections preventive maintenance general service repairs major repairs and regular cleaning and washing of
the rail cars OCTA estimates that 40 rail cars would be serviced at this location FaciIities would include storage tracks a maintenance building a paint shop a car wash
employee locker rooms a control and dispatch center and employee parking

Homeless Service Provider Uses
The short term use of the 28 acre Parcel 4 l 3f in PA 4 is for food distribution warehouse storage and office uses by homeless service providers The homeless service provider

organizations accommodated in the adopted CRP through the BRAC screening processes and included subject to future lease agreements in the Proposed Project in Parcel 4 13f are
as follows
l Families Forward Inc for use of a portion 1 0,000 square feet of existing Building 360
for office and food storage warehouse space

l Orange County Community Development Council for use of a portion 70,000 square
feet of existing Building 360 for the Orange County Food Bank food warehouse and distribution center

Description of the Proposed Project County of Orange EIR No 573 98
98 Page 99 100
l Salvation Army for use of a potion 45,000 square feet of existing Building 360 for
food storage warehouse space

l Society of St Vincent de Paul for use of existing Building 319 125,000 square feet for
a food warehouse distribution center and food preparation kitchen

3.3.2.5 Planning Area 5
Planning Area 5 is a panhandle extending from Irvine Boulevard to Portola Parkway at the northern comer of the MCAS El Toro site Proposed nonaviation revenue support uses
described below include retaining a portion of existing agricultural uses continuing use of the Marshburn Retarding Basin new public facilities for maintenance yards and facilities
and a food distribution warehouse

Agriculture
The Proposed Project includes approximately 37 acres of agricultural use in Parcel 5 la of PA 5 and is adjacent to a proposed aviation related parking facility the Marshburn
Retarding Basin and a proposed vehicle maintenance and storage facility
Public Facilities
Approximately 54 acres designated for Public Facilities in PA 5 are to be used for a vehicle maintenance yard These proposed Public Facilities areas were requested by the three
agencies identified below They are included in the Proposed Project as follows
l OCTA for a vehicle bus maintenance and storage yard subject to a lease agreement with
the County of Orange The vehicle maintenance yard site located in Parcel 5 l 3a may also be used by other agencies including the County of Orange and City of Irvine The

new bus maintenance facility would replace bus storage dispatch and maintenance operations at the Irvine bus base currently located at 14736 Sand Canyon Avenue and
create additional space for bus operations The associated facilities could include operations building s maintenance buildings service buildings cleaning station
buildings and surface parking The new facility would service diesel liquefied natural gas LNG and hybrid electric vehicles and could accommodate a fleet of 420 buses
with a mix of vehicle sizes that could include articulated buses 60 feet in length large buses 40 feet in length access buses 25 to 27 feet in length support vehicles and
company equipment assigned CEA automobiles The proposed bus maintenance use will include bus cleaning and maintenance activity occurring primarily at night during
off peak transit use periods Night activities will require lighting subject to FAA approval of the bus yards and parking lots

l County of Orange Public Facilities and Resources Department for a field operations and
vehicle maintenance yard This facility would share the OCTA maintenance site in Parcel 5 l 3a and was requested through the BRAC screening processes and included in

the adopted CRP
County of Orange EIR No 573 Description of the Proposed Project 99
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l City of Irvine Community Services Department for a facilities maintenance building
This facility was requested through the BRAC screening processes and included in the adopted CRP It would be incorporated into the shared OCTA maintenance site in

Parcel 6 13a subject to a lease agreement with the County of Orange
l County of Orange Public Facilities and Resources Department for the existing 30 arce
Marshbum Retarding Basin and 9 acre Marshburn Channel The Marshbum Retarding Basin and Channel were requested through the BRAC screening processes and included

in the adopted CRP They are included in the Proposed Project in Parcel 5 7

Homeless Service Provider Uses
A food distribution warehouse is proposed for Parcel 5 13b 11 acres adjacent to the proposed on site vehicle maintenance yards agriculture and the Marshburn Retarding
Basin and the existing off site University of California agricultural research facility The food distribution warehouse was requested by the California Department of Education
through the BRAC screening processes and was included in the adopted CRP It is included in the Proposed Project in Parcel 5 13b subject to a future lease agreement with the County
of Orange

3.3.2.6 Planning Area 6
PA 6 is the easternmost portion of the existing MCAS El Toro site While historically part of the base it is not part of the Proposed Project but is discussed where relevant for
Informational purposes A federal to federal agency property transfer is currently being evaluated for the purposes of preserving the habitat resource value of the site in conjunction
with the NCCP program described in Section 4.9 and it is not anticipated that the County will take ownership of PA 6 PA 6 is a restricted access area under military jurisdiction
with a pistol range munitions magazines an explosive ordnance disposal site and an archery area There are also two municipal landfills to be remediated by the DON Future
use will include a federal Habitat Reserve with controlled access for the continuation of the pistol range and Explosive Ordnance Disposal E OD uses A description of the Reserve's
biological resources is provided in Section 4.9 The County's role in the continuation of the area as a habitat reserve which expressly included recognition of the future use of MCAS El
Toro as a civilian commercial airport was to negotiate and be a party to the NCCP agreement which contemplates preservation of the area as a habitat reserve to the extent not
already devoted to other uses

3.3.2.7 Planning Area 7
PA 7 is the southern extension of the El Toro site located within the City of Irvine city limits south of the railroad tracks The Proposed Project nonaviation revenue support and aviation
compatible uses include a Wildlife Habitat Area restricted open space agriculture golf Business Park and public use facilities as described below

Description of the Proposed Project County of Orange EIR No 573 100
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Natural Habitat Open Space Areas
This planning area includes a portion approximately 40 acres of the Wildlife Habitat Area to be located in a linear design in Parcels 7 l 5e f and g and in Parcels 3 15b and c in

Planning Area 3 The Wildlife Habitat Area in PA 7 is the same as that described earlier in PA 3 PA 7 also includes approximately 47 acres of restricted open space area in Parcels 7
6g and h at the south end of Runways 16134

Agricuhm
PA 7 includes approximately 6 I acres of agricultural use in Parcel 7 1 e

Golf Course
The South Executive Course Figure 3 12 is proposed to be located in PA 7 in Parcels 7 15f and 7 15g on approximately 97 acres This will be an 18 hole par 6 1 public course with a
length of 4,275 yards Other on site facilities will include a driving range putting green clubhouse pro shop and maintenance buildings Parking accommodations will include 219
spaces at the South Executive Course plus an additional 34 spaces at the north end of the driving range Similar to the North Championship Course in PA 3 this course will be
designed with a Ranchb era theme with low pitched clay tile or shake roofs wood beamed porches and adobe style walls Landscaping will consist of natural low lying trees and
shrubs compatible with the proposed natural vegetation of the Wildlife Habitat Area which would be located in the center of the south course

Business Park
The Business Park is situated in PA 7 adjacent to the proposed South Executive Golf Course the off site Irvine Spectrum and Interstate 5 The Business Park design will
complement the office research and development and light industrial uses in the adjacent Irvine Spectrum as well as provide for high amenity and highly visible travel aviation and
trade oriented commerce
The proposed Business Park is composed of Parcels 7 14a b c and d Parcel 7 14a is proposed for approximately 6 acres of office use and Parcel 7 14b for 13 acres of a
combination of of e research and development R D and light industrial uses Approximately 34 acres in Parcel 7 N are proposed for a combination of office
commercial R D and light industrial uses Parcel 7 14d includes approximately 33 acres of offke commercial R D light industrial including auto related uses and parking

Design guidelines have been developed for the proposed Business Park The Planning Center Business Park Design Guidelines 1999 included as Appendix H to the ASMP and
are intended to be used by developers and builders to ensure quality of development and consistency with surrounding commtities They contain specific guidelines for site
planning landscape architecture signage lighting and sound attenuation Floor area ratios

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FAR are included in the design guidelines and defined as the total building area of all
floors divided by the total gross lot area The average FAR shall be at 35 percent 0.35 of the total gross lot area for light industrial and research and development uses and 30 percent

0.30 for commercial and office uses The maximum FAR for any parcel is 50 percent 0.50

Public Facilities
PA 7 includes a nine acre site for a water reclamation plant aqueous waste recycling plant The proposed water reclamation recycling plant was requested by the IRWD through the
BRAC screening processes and was included in the adopted CRP It is included in the Proposed Project subject to a future lease agreement with the County of Change in Parcel
7 13g An approximately 10,000 square foot facility would be constructed by IRWD

3.3.2.8 Planning Area 8
PA 8 consists primarily of the airfield Parcel 8 8 with restricted open space in Parcels 8
6a through f

Additional information about nonaviation revenue support uses can be found in Chapter 6.0 of the ASMP

3.3.3 Base Transition Plan
The BTP allows for some interim reuse of existing buildings and facilities at El Toro until implementation of the ASMP reaches a phase that requires the demolition of a specific
facility or its conversion to the permanent reuse contemplated by the ASMP The buildings that will be reused are within PAs I through 4 primarily for interim business park or
warehouse use In PAs 3 5 and 7 586 acres of agriculture will also continues as interim uses The BTP does not provide for interim leasing of buildings for residential uses

Specifically the BTP proposes the following
Planning Area 1 Business Park and Warehouse uses Planning Area 2 Warehouse uses
Planning Area 3 Warehouse and agriculture uses Planning Area 4 Warehouse and Business Park uses
Planning Area 5 Agriculture Planning Area 7 Agriculture

Description of the Proposed Project County of Orange EIR No 573 102
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Table 3 2 lists the nonaviation buildings facilities that the BTP has identified as suitable for
interim nonaviation reuse and indicates the planning phase in which each facility would continue as an interim use The majority of these facilities is located in Planning Area 1 and

would be discontinued during Phase 1 of the ASMP A small number of facilities would continue as interim uses into later phases of the Project until required for ASMP
implementation

3.3.4 interim Aviation Uses
Existing buildings that are suitable for civilian aviation use are listed in Table 3 3 While some are available only for the short term period before Phase 1 construction is completed
many could be used throughout much of the 20 year planning period
The initiation of commercial passenger service air cargo service and or general aviation could occur during Phase 1 but before the Phase 1 improvements are fully completed
During this interim period existing facilities would be used perhaps with installation of some temporary facilities

3.3.5 JWA Facility Improvements for the Proposed
Project

JWA is located approximately eight air miles west of the OCX site immediately adjacent to and south of I 405 and east of SR 55 The existing JWA terminal is located immediately

west of MacArthur Boulevard which has an interchange with I 405 at the northeast comer of the airport Figure 3 4

The JWA terminal building was completed in 1990 The current passenger limit is 8.4 MAP as a result of a settlement agreement Future terminal expansion or development without
additional property acquisition would be limited to expansion of the existing terminal envelope to the southwest due to the limited size of the site and its configuration with
parallel runways aligned in a northeast southwest alignment
The JWA requirements for the aviation functions are shown in Table 3 4 With the estimated reduction in the number of passengers served at JWA from 7.5 million in 1998 to
5.4 million in 2020 no terminal area expansion will be necessary A significant reduction in the amount of RON aircraft parking area and the relocation of cargo flights to OCX will
provide the County the opportunity to add needed general aviation facilities There is currently a deficiency in general aviation space at JWA and this deficiency would grow due
to the projected increase in the average size of general aviation aircraft served at the airport
General aviation requirements are identified in Table 3 5 and shown in Figures 3 l 4 and 3 1 5 General aviation improvements identified in the JWA Master Plan are listed in Table
3 9 and summan zed as follows

County of Orange EIR No 573 Description of the Proposed Project 103
103 Page 104 105
Table 3 2 Facilities at MCAS El Toro Proposed for Interim Nonaviation Reuse
Description

of the Proposed Project County of Orange EIR No 573 104
104 Page 105 106
Table 3 2 Facilities at MCAS El Toro Proposed for Interim Nonaviation Reuse
County of Orange EIR No 573 Description of the Proposed Project 105
105 Page 106 107
TABLE 3 3
MAJOR BUILDINGS AT MCAS EL TORO CONSIDERED FOR POTENTIAL AVIATION REUSE

El Toro Year Area Height Condi Available Potential for Temporary Civilian Use
Bldg No I q Civilian Aviation Use Military Name Built sq F t Ft t i o n Ia of Area 2020

Planning Area 1 98 Fire Station

q 4 I n I I 1943 6,732 40 s 1 1 1 Stuctural Fire Station 1 Passenger Terminal Area 288 Offices I r Terminal Area
289 Hangar 376 Fire Alarm Facility

624 Air Passenger Termir

I Y44 4 lbU 10 s 1 Corporate GA Offkes Passenger
1944 10,370 NA NA 1 Corporate GA Hangars Passenger 1 erminal
1954 1,649 20 S 1 Fire Alarm Facility Passenger Terminal 1967 11,470 12 AS 1 Passenger Terminal Passenger Terminal

114 Aircraft Maint Hangar 1966 25,232 40 AS 1 GA or Passenger Terminal Corporate GA 11s Aircraft Maim Hangar 1966 25,414 40 AS 1 GA or Passenger Terminal Corporate GA

372 378 Airfield Oper ATCT 1954 21,619 57 AS 1 ATCT ARFF 605 Maintenance Hangar r w a lYb3 1 LWYS 1 4U I AS I l 2 I tiA or Passenger l'ermmai 1 Aviat tnaustrial
rs r a A I A I I II 606 Maintenance Hangar lYO3 LJ SYX 4u AS 1 I L tiA or Passenger I ermrnai LorporarelcJA
634 Engine Shop Hangar 1969 48,135 32 AS 1 l 4 hviat Indus Shops Aviat Industrial 716 Engine Test Yr'T Z X IYIX I K KXO 7X I -1 I l 7 A R F F I I L Omorate liA

74s Warehouse 1983 23,693 ii AS I 4 Facilities Maintenance Aviat Industrial 746 Operational Training 1984 22,516 SO AS l 4 Aviat Industrial Aviat Industrial
rr

I I

371 374
442
IMA Hangar Utility Bldg
Missile Test

rranning Area 3
1954 87,061 59 AS l 3 Cargo Warehouse Sort Cargo Aircraft Maintenance 1954 5,586 18 AS 1 3 Cargo Utility Cargo Aircraft Maintenance

r T
II 453 1 Maint Squad 1 I 454 455

461 462
463

1Y3Y b U 1 5 AS 1 Cargo L argo
HClqts I 1960 5,040 1 1 AS l 3 Cargo Offices Cargo 1 I
Maim Squad haqts I 188 3 u4v II NA 1 J Cargo Offices L argo

Squadron Headqts 1960 5,040 1 1 AS 1 3 Cargo Offices Aircraft Maintenance Squadron Hangar 1960 31,812 36 AS 1 3 Cargo Warehouse Sort Cargo

Squadron Hangar
Squadron Hangar

Crew Facility 1947 960 8 1 S 1 l 2 1 ARFF I
NA Not available a Ratings by MCAS El Tore A adequate AS adequatc to substandard S substandard
b Phases available for temporary use c Located at future Concourse B or between it and future Taxiway A
Sources Callrop Engineering Corp Feasibility of Clvm AvIVS I mro InvetQfJ1 Pf
l s October 1994 MCAS El Toro Building Guide

I I I I 106
106 Page 107 108

Table 3 4 Summary of Facility Requirements for Proposed Project at JWA 2020
Million hual Passengers 7 .5 Air Cargo Thousand U S Tons 17.7
Based General Aviation Aircraft 569
Selected Facility Requirements Terminal Area

Jet Aircraft Gates Commuter Aircraft Gates
Terminal Building Square Feet Remain Overnight RON Parking
Spaces
Vehicle Parking Spaces a Short Term
Long term Employee
Rental Car
Air Cargo Area
General Aviation Area Acres 61 80
Support Facilities Area Acres Ground Handling
In flight Catering Airport Maintenance
Admin ARFF Control Tower Main Fuel Farm
Airport Vehicle and General Aviation Fueling
Subtotal Support Facilities

1 4 5
337,900
15

7,505 3,800
2,663 1,600 739 540

PI 410
I C

Cdl I e
4 2
2
11

14
2
337,900
4

0
WI I I e
2
2

11
a Includes spaces in the parking structures under comtruction and due to be completed in May 1999 b Included in short term 583 spaces
c Day use of 3 acres of RON parking and 0.45 acres leased for offices and vehicle parking d Included in terminal area
e Off airport

County of Orange EIR No 573 Description of the Proposed Project 107
107 Page 108 109
Table 3 5 Requirements for General Aviation at JWA 2005 to 2020 a
Transient Parking Ramp 5.4 8 9 10 11 Aircraft Hangars 9.1 14 14 14 14
Tiedowns 18.1 17 17 Total 61.3 74 76 17 I 2 78 80

a Source Estimated by P D Aviation as described in Technical Report 5 Facilitv Requirements November 5 1999

0
f i Site improvements for approximately 8.0 acres of FBO space Approximately 5.0 acres of transient aircraft parking iii Approximately 3.1 acres for based aircraft tiedowns

iv The relocation of Mantz Way approximately 750 linear feet
v Construction of about 36 hangar units

The existing JWA Capital Improvement Program contains a number of near term projects to repair upgrade or reconstruct various facilities at the airport which are not a part of the

Master Plan

3.3.6 Proposed Aviation Activity for the Two Airport
System

Civilian aviation services in Orange County would primarily compete for passengers and cargo with other commercial airports in the Southern California Air Service Area ASA
Therefore potential demand for services must be viewed in the context of a system of airports in the ASA The ASA is currently served by seven air carrier airports Further there
is potential for service at four additional facilities including MCAS El Toro which will become available with the realignment and closure of military bases in the ASA

The forecast of demand for air passenger and air cargo services at airports in Orange County considered not only the anticipated roles and services provided by airports in the County but
also the roles and services of other airports in the ASA and the distribution of demand in the ASA

Description of the Proposed Project County of Orange EIRNo 573 108
108 Page 109 110
3.3.6.1 Orange County Airports Air Passenger Demand
Projected air passenger demand under the Proposed Project is shown in Table 3 6 Air passenger service in the County is projected to increase from 7.5 MAP in 1998 to 34.2 MAP
in 2020 Twenty four percent or 8.2 MAP of this demand is for international air travel
Passengers served at OCX will reach 28.8 MAP by 2020 Passengers served at JWA will total 5.4 MAP by 2020 The passenger total at JWA in 2020 is lower than the 7.5 MAP
served in 1998 and reflects the increased attractiveness to air passengers of the full range of passenger services provided at OCX Asia Pacific traffic represents the largest international
market served from OCX with 5.5 MAP in 2020 followed by Latin America 1.3 MAP Atlantic 1.3 MAP and Canada 0.2 MAP see ASMP Technical Report 6 Volume 2
Appendix B

3.3.6.2 Orange County Airports Air Cargo Demand
Projected air cargo demand under the Proposed Project is shown in Table 3 6 Air cargo demand served at Orange County airports increases to just over 2.0 million tons in 2020
Cargo served at OCX reaches 2.0 million tons by 2020 Air cargo served at JWA totals 24,000 tons by 2020

Forty one percent or 0.8 million tons of demand by 2020 is for international air cargo Asia Pacific traffic represents the largest international market served from OCX with 0.6
million tons in 2020 followed by Atlantic 0.17 million tons Latin America 30,000 tons and Canada 20,000 tons see ASMP Technical Report 6 Volume 2 Appendix B

3.3.6.3 Orange County Airports General Aviation Based Aircraft
Demand

The general aviation based aircraft forecast for Orange County was allocated among the airports in the County OCX JWA and Fullerton on a percentage basis by type of aircraft
The results for JWA and OCX are shown in Table 3 6
The following considerations influenced the allocations
i Airport role JWA would continue to serve a wide variety of users and general aviation aircraft types from single engine piston to business jets OCX would serve
primarily multi engine piston and turbine powered transient non based aircraft operated by corporations These larger aircraft would be compatible with

commercial aircraft operations at a busy ful l international airport such as envisioned for OCX Training flights would continue to be conducted at JWA and Fullerton
Airport

County of Orange EIR No 573 Description of the Proposed Project 109
109 Page 110 111

6661 HH HH H pU8 3U Ia s uoy odsum paXWApV S tIOS
punoJ luapuadapu 01 anp pp8 IOU AEu I SI8JOL alON

OOC'LZL OOL'9ZP 009'OOE 008'LL9 OOC'L TP oos'o9z 0087X9 OOP'8OP OOP'PZZ OOP'8 S OOL'PZP OOL'EI 1 001'1 ooz 006 000'1 ooz 008 006 002 OOL 00s 002 OOE
000'18E 000'65E 000'22 OOO'LLE 000'8SE 000'61 OOO'PL E OOO'LS E OOO'L 1 OOO'L9E 000'6SE 000'8 009'92
009'92 ooz'zz ooz'zz OOP'LI OOP'L 1 OOL'8 OOL'8 009'8 1 C OOS'L9
001'1s2 009'LLZ 001'65 OOS'8TZ OOS'OPZ OOZ'K OOE'681 002'29 1 oos's9 OOL'96

PSS OLS Pl 08s 695 11 PLS 99s 8 SLS OLS 5
0'2 20'0 10'2 19'1 20'0 6S'I 02 1 20'0 81'1 K'O 20'0 05'0
28'0 00'0 28'0 19'0 00'0 19'0 IV0 00'0 IV'0 00'0 00'0 00'0 12'1 20'0 61'1
00 I 20'0 86'0 6L'O ZO'O LL'O TSO 20'0 OS'0

yE P'S 8'82 0'82 93 P'EZ L 22 6'E 8'81 E'PI S'S 8'8
2'8 2'8 9'S 9'S 9'E 9'E I

SZL'Lltr
E6 PZ9'LZE

800'1 000'68 110
110 Page 111 112

1 i i
1 111

Facilities existing and planned and FBOs at the airports to service the categories of general aviation users Fullerton Airport would continue to accommodate
predominantly piston aircraft and helicopters due to its limited runway length There are plans for the construction of additional hangars at Fullerton Airport It is
assumed that facilities at OCX would be made available to accommodate government and corporate general aviation aircraft

Airport location It is estimated that some corporate users with aircraft based at JWA would choose to base their aircraft at OCX if that were an option due to its location
Consistency with forecast of general aviation onerations The total number of aircrafi allocated to QCX is consistent with the forecast of operations

3.3.6.4 Aircraft Operations Forecast
The number of aircraft operations take offs and landings were estimated for OCX and JWA from the number of air passengers air cargo tonnage and general aviation based
aircraft forecasts Estimates of military aircraft operations are also provided Projected aircraft operations at OCX and JWA under the Proposed Project are summarized in
Table 3 6

3.4 SUMMARY OF CRP PROJECT ADDRESSED IN EIR
NO 563

The CRP project addressed in EIR No 563 was the first tier of CEQA review for the proposed civilian reuse of MCAS El Toro The project description in the approved CRP has
been modified particularly with regard to the nonaviation uses Another difference between the CRP and the Proposed Project is the reduction in anticipated commercial passenger
service levels from 38.3 to 28.8 MAP

3.4.1 Comparison of Proposed Project with the
Community Reuse Plan

Table 3 7 compares key features of the 1996 CRP with the Proposed Project developed in the ASMP and described in this report

County of Change EIR No 573 Description of the Proposed Project 111
111 Page 112 113
Table 3 7 Comparison of the Community Reuse Plan and the Airport System Master Plan
cargo Aviation Related Uses
ASR FAA 2 0 -2 Subtotal 2,074 2,237 163 8
lvw ti ti A I Am s ACi S Residential 97 0 -97
CommerciaMXTice 157 0 -157 Habitat Reserve Federal and County 998 991 -7
R D Light Industrial Business Park 615 186 -429 Educational Institutional 163 81 -82
Office and Conference Center Meeting Center 22 0 -22 Marshbum Basin 39 39 0
Transportation Center 16 22 6 Open Space Habitat Areas 68 145 77
Recreation I74 265 91 Recreation Golf Course 271 284 13
InstitutionaVPubIic Facilities 21 111 90 California Air National Guard 23 24 1
Agriculture 0 139 139 Roads Easements N A I67 I67
Subtotal 2,664 2,455 -210 8 Total Acres 4,738 4,692 -46 1

Sources CRP Acreages Table S l Final EIR No 563 ASMP Acreages Table 3 1 Draft EIR No 573

Notes
l Acreages are approximate according to broad land use categories for large land areas

l Acreages and subtotals may differ due to rounding
l CRP and ASMP acres differ due to Caltrans acquisition of portions of the site and
refined surveys since the CRP l
The ASMP includes runway extensions not in the CRP which increase the acreage of the airfield and restricted use areas

l The ASR has been relocated by FAA outside the project boundary
l The ASMP passenger terminal parking area includes rental car facilities and similar
uses The CRP includes rental car facilities and similar uses under airport support uses l
The CRP acreages include roads and major easements within the land use categories The ASMP acreages exclude roads and fnajor easements

Description

of the Proposed Project County of Orange EIR No 573 112
112 Page 113 114

The CRP recommended that MCAS El Toro be converted to a commercial service airport that could accommodate by the year 2020 up to 38.3 MAP and 1.64 million tons of air
cargo annually Other aviation uses at MCAS El Toro included airline maintenance and general aviation primarily corporate and government flying CRP nonaviation uses
included a 998 acre habitat preserve research and development and light industrial uses potential campus or other educational uses expansion of the existing golf course and
various opportunities for institutional uses The CRP included one existing north south runway and one existing east west runway to be used initially In later phases of
development a new parallel lO OOO foot north south runway and a new parallel 8,000 foot east west runway would be constructed providing increased separation from the existing
runways to comply with FAA standards for simultaneous operations under visual conditions Under the proposed CRP commercial passenger and cargo activity would cease at JWA
once El Toro was opened for commercial service
In December 1996 the County of Orange Board of Supervisors acting in its capacity as the MCAS El Toro LRA adopted LRA Resolution 96 02 which provided that the County
consider a two airport system comprised of a commercial aviation facility at MCAS El Toro and John Wayne Airport which is the commercial operational pattern for Orange
County airports presently preferred by the Board of Supervisors
The Proposed Project developed in the ASMP is a two commercial airport system with JWA serving in its present role of accommodating general aviation and primarily short and
medium haul passenger service and a commercial service airport at El Toro now referred to as OCX providing general aviation and cargo and passenger service horn short haul to full
international By 2020 JWA would serve 5.4 MAP and OCX would handle 28.8 MAP and 2.01 annual tons of cargo The Proposed Project envisions the same runway alignments as
the CRP but the runways would be extended to approximately 12,400 feet and 12,100 feet in the north south direction and 9,150 feet in the east west direction Further the east west
runways would be constructed to reduce the slope of the runways in conformance with FAA standards The Proposed Project would include other aviation uses at OCX such as general
aviation aircraft maintenance and aviation industrial uses It would also have a variety of aviation compatible and nonaviation revenue supporting uses including recreational and
open space uses such as a pa golf courses a Wildlife Habitat Area and agriculture and other uses such as business parks institutional and public facilities

The specific changes between the CRP and ASMP as reflected in Table 3 8 are compared in terms of aviation uses and nonaviation uses The more detailed level of planning for the
ASMP has identified the use of approximately 2,237 acres for aviation use compared with the 2,074 acres previously identified in the CRP The majority of the increase in aviation
acreage is due primarily to the provision of 209 additional acres of airfield restricted use and airport support area The overall increase in aviation use is 163 acres or approximately
eight percent of the land area compared with the CRP

County of Orange EIR No 573 Description of the Proposed Project 113
113 Page 114 115
Table 3 8 Comparison of Proposed Project and the 1996 Community Reuse Plan
tl3wiiim Rertse mn gRpn
M Bem 2arts a Zozo l b

Airport Roles JWA General aviation GA General aviation primarily shortand

medium haul passenger service
OCX General aviation passenger General aviation passenger and and cargo service from cargo service from short haul to
short haul to full full international international
Aviation Activity JWA
Mil An Passengers 0 5.4 Annual Cargo Tons 0 0.02
Annual Operations 375,000 426,700 Based GA Aircraft 568 570

ocx Mil An Passengers 38.3 28.8
Annual Cargo Tons 1.64 2.01 Annual Operations 447,000 300,600
Based GA Airc 36 14 Runways
JWA Existing 2 parallel runways Existing 2 parallel runways OCX 1 existing 10,000 and 1 new I lengthened 12,400 and 1 new
10,000 north south runway 12,100 north south runway and 1 and 1 existing 8,000 and 1 reconstructed 9,150 and 1 new
new 8,000 east west 9,150 east west runway runway

al
rbl

Source MCAS Local Redevelopment Authority MCAS El Toro Community Reuse Plan Final Report
December 1996 prepared by The P D Consultants Team Source Orange County Aviation Associates and The Planning Center

Description

of the Proposed Project County of Change EIR No 573 114
114 Page 115 116

Nonaviation uses in the CRP included over 1,000 acres of residential commercial office research and development light industrial business park and educational iistitutional uses
The ASMP proposes to reduce many of these higher intensity uses to lower intensity open
space recreation and agricultural uses and to airfield restricted use airport support area

The overall change between the CRP and ASMP nonaviation use area is a reduction of approximately 2 10 acres or eight percent

The total existing MCAS El Turo site acreage has also changed since the CRP was adopted
as a result of Caltrans acquisition of a portion of the site near the I 5 I 405 interchange and refined property boundary surveys The total MCAS El Toro site acreage reflected in the

Proposed Project is now approximately 3,722 acres
The Community Reuse Plan included the proposal to retain 541 of the existing residential uses at MCAS El Toro These units were all located in the northerly portion of the base just
outside of the noise impact 65 dEJ CNEL area Of the 541 units 300 were recommended to be utilized for transitional housing managed by homeless service providers 87 for
market rate units 94 as housing for the educational campus and 60 were located within the 30 acre site proposed for the Children's Center

After fbrther consideration of the location of these units and in response to concern over potential noise levels the Proposed Project was revised to remove proposed residential uses
from an area in such close proximity to the 65 CNEL contour of the Proposed Project Therefore these 541 housing units will no longer be retained

Although 300 residential units were recommended for transitional housing a total of only 165 units had been recommended for lease to five homeless service providers in the CRP
These homeless service providers were to enter into a Legally Binding Agreement with the Local Redevelopment Authority LRA regarding the use of these units The agreement and
federal base closure law allows the LR4 to provide appropriate off site alternative accommodation if the residential units are not available for use on the redeveloped base
property If the Proposed Project is adopted as the redevelopment plan for MCAS El Tore the LRA will work toward providing appropriate off site alternative accommodation to the
affected homeless service providers
The elimination of the proposed 87 market rate units is not expected to significantly affect the housing market in the community The current educational complex proposal no longer
includes on campus housing Therefore the elimination of the 94 housing units will not preclude the successful development of an educational complex Finally the 60 units that
were to be located with the proposed 30 acre Children's Center were scheduled to be destroyed to allow new construction of a children's emergency shelter family services
center transitional care shelter and closed files and support facility
County

of Orange EIR No 573 Description of the Proposed Project
115
115 Page 116 117
3.5 PHASING
Table 3 9 summarizes the proposed OCX aviation improvements by phase Background
information for some of these improvements is provided below Figure 3 4 Proposed Development Phases for OCX illustrates the phasing of aviation improvements

Runway identifying designations are based on the earth's magnetic headings The magnetic
declineators have changed over time therefore the runway identifying numbers at MCAS El Toro will be required to change in accordance with FAA rules and standard international

aviation practices The old identifiers associated with MCAS EI Toro are used in this
document Later documents may reflect the following changes

Runway 7 25 will become 8 26 Runway 16 34 will become 17 3 5

Detailed information about the Proposed Project aviation improvements can be found in the ASMP and in Technical Report 14 Concepts Evaluation of Other Airport Facilities OCAA
1999 The ASMP provides descriptions of proposed aviation facilities including lighting and navigational aids and ancillary facility improvements A summary of the improvements
contemplated by the Proposed Project for each development phase appears after Table 3 10

Certain areas are allocated in the Proposed Project to provide vehicular parking for terminal related traffic including public parking areas rental car facilities and employee parking
Public parking will be provided in a parking structure to be constructed in front of the Terminal complex inside the Terminal Loop Road in a long term parking lot west of the
Terminal Loop Road and eventually in a remote parking lot in the Northern Panhandle area PA 5 An employee parking lot will be developed south of the terminal complex and
eventually in a remote lot in PA 5 A consolidated Rent A Car R4C facility will be developed north of the long term parking lot to accommodate approximately six on site
RAC operators The phasing of these improvements as well as access roadway construction is identified in Table 3 9 Access is also provided to the non terminal areas of
the site Other project areas and facilities described in Table 3 9 include the following
Two sites for air cargo and associated buildings
Parking Truck docks

Truck staging areas
Aircraft parking for corporate government and other general aviation uses A 14 acre area for three in flight catering firms

Air Traffic Control Tower in accordance with FAA criteria Short term and long term locations for Airport Rescue and Fire Fighting
Aviation industrial RON parking for aircraft airport maintenance and aircraft maintenance facilities

Description of the Proposed Project County of Orange EIR No 573 116
116 Page 117 118
Removal of Existing Facilities
Demolition and removal of materials will occur in all four phases as identified in Table 3 10

Table 3 10 Demolition Construction Schedule at OCX

Aviation Areas Demolition
Demolition Pavement Demolition Buildings
construction Utilities Piping
Grading Paving
Walls Curbs Gutters
Buildings Miscellaneous Items
Landscaping

Tons 1,009 944 416 257 2,626 Tons 362 90 68 45 565

LF 475 255 110 80 920 CY 5,900 10,100 3,600 3,900 23,500
SY 1,755 3,110 870 745 6,480 SF 210 425 2 34 671
LF 11 3 7 8 29 SF 1,730 2,760 1,230 1,560 7,280
EA 0.8 0.5 0.1 0.1 1.5 SF 1,140 600 730 60 2,530

Airport Compatible and Revenue Supporting Areas
Demolition Demolition Pavement
Demolition Buildings construction
Grading Paving
Walls Curbs Gutters
Buildings Landscaping

Tons 34 46 0 57 137 Tons 27 37 0 46 110
CY 0 3,700 SY 309 0
SF 1 0 LF 4 0
SF 963 5 SF 12,646 0

0 3,700 145 454
0 1 24 28
9 977 8,899 21,545

The above quantities were obtained from the Rough Order of Magnitude Construction Cost Estimate that was developed as a part of the Master Plan and do not include the Nonaviation
Areas

County
of Orange EIR No 573 Description of the Proposed Project 117
117 Page 118 119
Nunaviation Revenue Support Uses
Table 3 l 1 lists the nonaviation revenue support uses contemplated for the MCAS El Toro site and the phase in which each is anticipated to be implemented These uses are also

described within the following summary of improvements for each phase

3.5.1 Phase 1 2000 2005
3.5.1 I Aviation and Infrastructure UCX

Commercial aviation activities could be initiated at MCAS El Toro immediately following Local Redevelopment Agency Board of Supervisors approval of the Proposed Project
In Phase I the existing 10,000 foot Runway 16W34L will be reconstructed and readied for commercial use A lOGfoot wide parallel taxiway Taxiway A will be constructed on the
west side of the runway The proposed development in Phase 1 also includes construction of the north terminal and parking structure the northern two piers Concourses A and B and
development of most of the roadway system The terminal apron supporting Concourses A and B will be constructed

Initial air cargo and general aviation area development will occur along with access and other supporting improvements In this stage of planning it is assumed that the FAA will
construct a new Air Traffic Control Tower at OCX in Phase 1 The Airport Transportation Center ATC will be constructed Other site improvements include backbone utility
systems airport lighting and navigation aids aircraft fuel facilities environmental control facilities and access and security facilities

3.5.1.2 Nonaviation Revenue Support Facilities Site Improvements OCX
Agricultural Lands
The agricultural parcels proposed in the plan for Phase 1 are currently in agricultural production with the exception of 13 acres south of the federal Habitat Reserve The

proposed Phase 1 uses are described in Table 3 12

Description of the Proposed Project County of Orange EIR No 573 118
118 Page 119 120
Table 3 11 Proposed Nonaviation Revenue Support Uses and Locations
Plmtik Area Phase TQt i
Name mf Agency mpQf U E Par ML Xmplemtnted AC e California Air National Communications and training 3 13e 1 24.05 acres

Guard facility
American Riding Club for Job training and warehouse space 2 16 2 N A the Handicapped incorporated into educational

complex American Riding Club for Continued operation of riding 2 2b 1 N A
the Handicapped therapy program at stables Families Forward Inc Office and warehouse uses in 4 13f 1 28.29 acres

formerly Irvine portion of Bldg 360 10,000 sq total for Temporary Housing ft parcel
Families Forward Inc Provision of 25 slots at no or 2 16 2 N A formerly Irvine low cost in child care center
Temporary Housing located in educational complex if developed
O C Community O C Food Bank food warehouse 4 13f 1 28.29 acres Development Council and distribution center in portion total for
of Bldg 360 70,000 sq ft P l O C Social Services Children's Emergency Shelter 2 16 2 N A
Agency Children's Family Resource Center Transitional Shelter
Closed Files Support Facility located in educational complex
Salvation Army Warehouse space in portion of 4 I f 1 28.29 acres Bldg 360 45,000 sq ft total for
Pa a Society of St Vincent de Second Harvest Food Bank food 4 13f 1 28.29 acres
Paul warehouse distribution center total for food preparation kitchen located parcel
in Bldg 3 19 City of Irvine Facilities maintenance building 5 13a 1 53.84 acres
Community Services located in maintenance yard total for Department shared with OCTA and County P a
of Orange To Be Determined Two golf courses 3 3a b 1 284.16
18 hole regulation 7 3c d e f acres 18 hole executive
To Be Determined Equestrian stables located in 2 2b 1 22 acres regional park
To Be Determined Regional park 2 2a b 4 265.13 3 15a b c acres
d 7 He f g

County of Orange EIR No 573 Description of the Proposed Project 119
119 Page 120 121
Table 3 11 Proposed Nonaviation Revenue Support Uses and Locations
I I ~ I
I

Nqeof

County of Orange NCCP

County of Orange Probation Department
County of Orange Public Facilities
Resources Department County of Orange
Public Facilities Resources Department
County of Orange Public Facilities
Resources Department County of Orange
Sheriff Coroner County of Orange
Sheriff Coroner California Department of
Education Child Nutritior Food Distribution
California State University Fullerton
Saddleback Community College District
Irvine Ranch Water District
Irvine Ranch Water District
California Baptist College

O C Transportation Authority
Orange County Fire Authority
O C Transportation Authority

conservation
Family resource center located in educational complex

Field operations and vehicle maintenance yard shared with
UCTA Marshbum retarding basin
channel

2 16 2
5 13a 1

5 7 1

N A
53.84 acres total for
parcel 38.87 acres

Alton Parkway right of way road extension 3 1 17.6 acres
Musick expansion agricultural 3 lb c d 1 40.04 acres use
Classroom training uses located 2 16 2 N A in educational complex
Food distribution warehouse I 5 13b I 1 I 11.75 acres

Educational complex 2 16 2 8 1.53 acres

Reservoir pumping station I 3 13c 1 5.73 acres i
Water reclamation plant aqueous waste recycling plant
Satellite campus uses classroom and offrce space located in
educational complex Bus maintenance yard shared
with County of Orange
Two fire station facilities
Rail maintenance and storage facility
Relocation of homeless service providers may be necessary

7 13g
2 16

5 13a
3 13d 4 13h
4 13f

9 acres
N A

53.84 acres total for
Parcel 2.12 acres

28.29 acres total for
parcel

Description of the Proposed Project County of Orange EIR No 573 120
120 Page 121 122
Table 3 12
Proposed Agricultural Use Parcels at OCX Phase 1

administrative offices 0

Source ASMP P D Aviation and The Planning Center
Regionat Park

In Phases 1 2 and 3 existing recreational facilities such as equestrian facilities in the Uure Regional Park area till be used No additional park development is planned during
these phases

Golf Courses
Both the North Championship Golf Course and South Executive Golf Course will be constructed during Phase 1

Landscaping Entries and Edge Treatments
Important components of the Proposed Project are the landscaping entry points and streetscapes throughout the project Plant materials and monumentation will begin in Phase
1 and be implemented throughout the project
Restricted Open Space
Restricted open space areas will be located at both ends of each set of runways These areas include portions of the Runway Protection Zones and Obstacle Free Zone at the ends of the
runways that the FAA recommends are clear of any objects except necessary air navigation equipment These restricted open space areas will be established in Phase 1

Habitat Reserve
The 970 acre federal Habitat Reserve in PA 6 Figure 3 12 is expected to be conveyed in Phase 1 to another federal agency

County of Change EIR No 573 Description of the Proposed Project 121
121 Page 122 123
Marshburn Retarding Basin
Marshbum Retarding Basin is an existing element of the Flood Control Master Plan for San Diego Creek and is located in Parcel 5 7 No tier development of the Marshburn

Retarding Basin is planned in the Proposed Project
Cutturalllnstitutional Center
To comply with the Part 77 Horizontal Surface associated with OCX this site must be graded to lower it an average of 35 feet During Phase 1 this site will be improved through
the completion of this grading Excess earth excavated from the site will be used for runway and terminal construction during Phase 2

Public Facilities
The Public Facilities uses are all planned to be implemented in Phase 1 These include the California Air National Guard communications facility a fire station and the existing IRWD
water reservoir and pump station in PA 3 a second fire station and the homeless services provider uses in PA 4 and the vehicle maintenance yard and California Department of
Education food distribution warehouse in PA 5

Business Park
The Business Park is proposed to be developed in Phase 1

3.5.1.3 Base Transition Plan
The County is currently leasing the golf course stibles recreational vehicle storage yard child development centers pool LRA of es and the former Officers Club renamed the

O'Club under an interim lease with the DON In addition to these facilities the County intends to Iease the majority of the base from the DON under a Master Lease or comparable
agreement The Master Lease is expected to begin in July 2000 The County would sublease many of these facilities to private entities largely for business park and warehouse
uses in order to offset base caretaker and maintenance costs
During Phase 1 the recreational vehicle storage yard child development centers pool and LRA offices would be discontinued as interim uses for ASMP construction The existing
golf course and stables would be discontinued as interim uses and transition into the reconfigured golf course and stables included in the Proposed Project The majority of the
facilities being subleased to private entities including v ally all of PAS 1 and 2 would be discontinued by the end of Phase 1 2005 refer to Table 3 2

Description of the Proposed Project County of Orange EIR No 573 122
122 Page 123 124
3.5.1.4 Facilities Site Improvements JWA

The planned general aviation improvements at JWA cannot be made until Phase 1 passenger service begins at OCX and the south RON area at JWA is no longer needed for that purpose
The JWA Master Plan improvements are estimated to be completed in Phase 2
After Phase 1 construction is completed at OCX and passenger service begins there an area south of the JWA terminal currently being used for RON parking will be available for
general aviation use Some adjacent areas used for construction staging and temporary employee parking will be available sooner but cannot efficiently be converted to general
aviation use until the RON apron becomes available Table 3 9

3 .5 .2 P h a s e 2 2 0 0 6 -2 0 1 0
3.5.2.1 Aviation and Infrastructure OCX

Phase 2 airfield improvements involve construction of the parahel north south runways to their ultimate configuration and development of Runway 7R 25L Additional
improvements will be made to lighting and navigational aids the parking structure the iongterm parking lot and the rental car area The terminal apron supporting Concourses C and
D and a portion of the west cargo area will be constructed in Phase 2

3.5.2.2 Nonaviation Revenue Support OCX
Facilities Site lmpruvemen ts
No changes to agricultural uses or existing recreational facilities are planned for Phase 2 Landscaping entries and edge treatments would continue to be implemented in Phase 2

Culturalllnstitutional Center
The 82 acre site north of Irvine Boulevard and the proposed Regional Park identified as the cultural institutional center is proposed for development in Phase 2 California State

University Fullerton has expressed an interest in locating a branch campus on this site to eventually accommodate 5,000 students

An estimated 545,000 gross square feet of campus facilities would be needed to accommodate the projected student population Buildings will consist of one two and three
stories Campus facilities developed in Phase 2 in the Cultural Institutional area may include the following

l Traditional classroom buildings
l Interactive group learning facilities

County of Orange EIR No 573 Description of the Proposed Project 123
123 Page 124 125
l
l
l
l
0
0
l
l
l
l

Information technology center Television n studios
Distance learning facility Library
Bookstore Student center
Administrative o es Plant operations maintenance facilities public safety
Grounds and open space Circulation and parking

Several public agencies have requested office or classroom space for training child care and other services These agencies needs wiil be accommodated within the facilities listed
above

Facilitks Site lmprovemen ts J WA
There will be approximately an additional 16.1 acres south of the southern RON area available in Phase 2 for general aviation use This additional space will result fkom the
reduction in the amount of RON space required at JWA and the release of the temporary use areas RON spaces would be reduced from 15 today to 4 spaces under the Proposed Project
The existing four RON spaces north of the terminal complex would accommodate all the RON requirements The additional general aviation space would reduce the 2020 Proposed
Project general aviation deficiency from 18.7 acres to approximately 2.6 acres
The proposed general aviation improvements will consist of the following

0 i Site improvements for approximately 8.0 acres of FBO space I i i Approximately 5.0 acres of transient aircr parking
iii The relocation of Mantz Way approximately 750 linear feet iv New aircraft hangars and reconfiguration of west side tiedowns A net of

approximately 1.8 acres of existing tiedowns will be connected to hangar use
With these improvements the 2020 deficiencies in FBO transient parking and based aircraft tiedowns will be relatively small 2.6 acres These improvements are listed as
Items Z 1 through Z 5 in Table 3 7
Three buildings approximately 108,000 square feet containing about 36 new hangar units and central restrooms will be constructed in Phase 2 on 4.9 acres on the west side of the
airport The fiture hangar area is currently occupied by County tiedowns approximately 50 of which will be displaced by the hangar project The tiedown space in the RON area will
replace some of these tiedowns The additional hangar space will satisfy all the hangar deficiency at JWA to 2020

Description of the Proposed Project County of Orange EIR No 573 124
124 Page 125 126

The O'Club would be discontinued as an interim reuse during Phase 2 Six other facilities Building Nos 304 307 3 18 456 800 and 802 would continue as interim uses refer to
Table 3 2

3 .5 .3 Phase 3 2011 2015
3.5.3.1 Aviation and Infrastructure f
aciliries Site fmpfuvemen ts OCX
Phase 3 airfield development involves construction of a 75 foot wide firll parallel taxiway on the south side of Runway 7R 25L The runway centerline to taxiway centerline separation is
400 feet The taxiway will enhance aircraR ground operations to and from the expanded West Cargo Area and airline maintenance facilities in the southeast quadrant of the airfield
Additional improvements will also be made to lighting and navigational aids terminal aprons parking structures circulation general aviation and support uses

3.5.3.2 Nonaviation Revenue Support Fadities
Site mprovemen ts
There are no new nonaviation revenue support improvements anticipated in Phase 3 of the

Proposed Project
Faditks
Site lmpru vemen ts J WA

No further improvements are planned at JWA in Phases 3 and 4

Base Transition Plan
It is expected that six facilities EMding Nos 304 307 318 456 800 and 802 would continue in interim use in Phase 3 refer to Table 3 2

3 .5 .4 Phase 4 2016 2020
3.5.4.1 Aviation and Infrastructure
Facr'lities site improvements OGX chart and figures
The final development phase of the master plan program calls for the construction of new Runway 7L 25R Other navigation parking and circulation improvements will also be
included
County of Change EIR No 573 Description of the Proposed Project 125
125 Page 126 127
3.5.4.2 Nonaviation Revenue Support
Faciliries Site lmpru vemen ts
Regional Park
The 265 acre Regional Park in PA 2 is to be developed in Phase 4 Regional Park facilities were listed earlier in this section and are shown on Figure 3 l 3

Wildlife Habitat Area
The Proposed Project Wildlife Habitat Area of approximately 144 acres along the east side of the EI Tore site is proposed for implementation in Phase 4 As discussed earlier in this
section this Wildlife Habitat Area will establish a core habitat area for sensitive species throughout the length of the El Tore site and wil1 provide valuable habitat for sensitive
species and opportunities for animal movement in this area

Facilities Site lmptu vemen ts J WA
No f ther improvements are planned at JWA in Phase 4

Base Tfansitiun Plan
During Phase 4 all of the remaining interim uses would be discontinued for implementation of the project

3.6 SUMMARY OF PROPOSED ACTIONS
3.6.1 County Implementing Actions and Discretionary
Approvals

3.6.1 I Discretionary Approvals
For the Proposed Project to proceed the County of Orange will need to undertake several discretionary approvak Discretionary action will be taken by the Orange County Board of
Supervisors acting as the Local Redevelopment Agency MU or commissions of the County such as the Planning Commission the Airport Commission and the CAC

Dkcre tionary Apptuvals UCX
Possible discretionary actions of the Board of Supervisors in respect of project elements related to the development of the El Toro site include the following

Description of the Proposed Project County of Change EIR No 573 126
126 Page 127 128

General Plan Amendments Land Use Noise Safety and Public Facilities
Zone changes or Zoning Exemption
Community Reuse Plan Actions amend CRP
Amend Community Profile with HUD
Amend Homeless Assistance Submission
Adopt Airport System Master Plan
Approve Base Transition PIan
Approve Leases and Subleases
Adopt Airport Master Plan for OCX and related ALP
Approve submission of a request to FAA for issuance of a Part 139 Certifkate for OCX
Approve submission of a request for a State Airport Permit
Submit request to amend AELUP

Discre tiumwy Appru v s J WA
Adopt Master Plan or Master Plan Update Amend
Land Use Element of the General Plan

Submit request to amend AELUP
3.7 INTENDED USES OF THE EIR
The intended uses of the EIR include providing the CEQA compliance required for certain discretionary actious and approvah by the County as the Lead Agency under CEQA and the
LRA or commissions of the County as described above A sumnwy of federal state or local agencies other than the County that are expected to use the EIR in connection with
discretionary decisions that they are required to implement or that are otherwise related to the Proposed Project is also provided below

3.7.1 Approvals For Which The EIR Will Be Used
Federal state and local agencies other than the County that may use the EIR in connection with discretionary decisions they are authorized to implement or are otherwise related to any

County of Change EIR No 573 Description of the Proposed Project 127
127 Page 128 129
aviation or land use development plan for El Toro may include but are not necessarily limited to the following
Orange County Airport Land Use Commission ALUC
Southern California Association of Governments SCAG
Transportation Corridor Agencies
VW South Coast Air Quality Management

District SCAQMD
Regional Water Quality Control Board
WWQCW Army Corps of Engineers Corps

California Department of Transportation Caltrans
Southern California Regional Rail
Authority SCRRA
Orange County Transportation
Authority OCTA
State Lands Commission
California Air Resources Board
WY Federal Transit Administration FTA

l
l
l

a

Federal Highway Administration
IFHWN United States Department of Housing

and Urban Development HUD
United States Environmental Protection Agency EPA

Federal Aviation Administration
FAA Air National Guard the United States

Department of Interior DOI
United States Fish and Wildlife Service UWFS

United States Department of Defense Department of the Navy
DOD DON
United States Marine Corps
California Department of Fish and Game DFG and

Public Utilities Commission for fuel pipeline transfer

The types of actions that these agencies may take in connection with the EIR and the current Tier 2 stage of planning the Proposed Project include but are not limited to the following
9 Adopt approve or amend applicable plans zoning and policies including but not limited to the Airport Environs Land Use Plan AELUP and the potential
establishment of a redevelopment area ii Making findings of consistency

iii Issue permits
iv Approve agreements and

0 V Provide authorization and approval of funding

Description of the Proposed Project County of Orange EIR No 573 128
128 Page 129 130
4.0 ENVIRONMENTAL SETTING IMPACTS AND
MITIGATION MEASURES

Introduction Organization and Content
This chapter provides the detailed analyses of the potential environmental impacts of the Proposed Project In those instances in which the impact analysis of the Proposed Project is
materially affected by the phasing of the project i e in those instances in which the impacts of the Proposed Project during the phasing years are materially different from those impacts
at year 2020 build out an analysis of the Proposed Project's impacts for the applicable phasing year is also provided The text discussions are supported with appropriate graphics
and tables For each environmental topic the following information will be provided

Summary of Conclusions in Final EIR No 563
This section provides a summary of the conclusions of the first tier EIR Final EIR No 563 December 1996 which analyzed the Community Reuse Plan CRP Project This section
includes the findings for each environmental topic regarding significant effects that cannot be mitigated to a level below significance and effects determined to be mitigated to below a
level of significance

Final EIR No 563 Supplemental Analysis
This section summarizes the analysis contained in the Final EIR No 563 Supplemental Analysis November 1999 The Supplemental Analysis addressed limited environmental
topics in response to a legal challenge of FEIR No 563 Where the Supplemental Analysis was not required to address a certain topic that is stated in this section

EIR No 573
Environmental Setting Existing Conditions This section describes the environmental setting and existing conditions relevant to each individual environmental topic for the

MCAS El Toro site JWA and the relevant surrounding local subregional and regional areas Based in part on the findings in the Initial Study contained in the Notice of
Preparation for this EIR Appendix A the discussion of environmental setting and existing
conditions will be focused on those features and components relevant to the potentially significant adverse impacts of the Proposed Project The environmental settings existing

conditions are the physical environmental conditions at approximately the time the NOP was circulated i e 1998 except where 1 forecasting techniques models require longer
different periods of time for validation e g 1997 validation of the transportation model or 25 years of meteorological data for air quality models and or 2 the NOP period included
major improvements changes that would result in understating project impacts e g opening the Eastern Toll
Road adjacent to the site Wherever the environmental settings existing conditions differ from the conditions at the time of the NOP e g 1998 the reasons for the

County of Change EIR No 573
4 1 Environmental Setting Impacts and Mitigation Measures 129
129 Page 130 131
differences are summarized in the environmental settings existing conditions subsection and or described in the relevant technical reports
Methodology This section describes the specific methodology used to identify and assess the potentially significant adverse impacts of the Proposed Project related to the
individual environmental topics The appropriate scientific analyses and methods are described

Thresholds of Significance The thresholds for assessing the potential significance of environmental impacts of the project and project alternatives are identified based on the
CEQA Guidelines the thresholds used in Final EIR No 563 or other thresholds from the County other local jurisdictions or other agencies
relevant to the Proposed Project as appropriate

Project Features Certain topical sections of Chapter 4.0 include descriptions of the Proposed Project features or components that are relevant to that topic For example
Recreation Section 4.14 includes descriptions of the proposed recreational and open space amenities proposed as part of the project at the MCAS El Toro site

Impacts Analysis Potentially significant short term and long term adverse impacts and
beneficial effects of the Proposed Project are identified As appropriate impacts are described for MCAS El Toro JWA and adjacent areas For those impacts that may vary

depending on the phasing of the project components the impacts for each of the phases will be identified to the degree feasible based on the current level of project design The
impacts of the proposed aviation and compatible nonaviation revenue support land use components are described separately

Some aviation activity could occur at OCX before Phase I construction is completed Where applicable in Chapter 4.0 this EIR analyzes the potential environmental effects of any
facility improvements needed to support aviation uses during the interim period before Phase I is complete The Base Transition Plan CABACO 1999 provides a listing of the
existing buildings on the MCAS El Toro site and their potential for civilian reuse
Mitigation Measures The mechanisms that serve to reduce potential project impacts are mitigation measures Mitigation measures may include mitigation measures carried forward
from FEIR No 563 standard conditions based on local State or federal regulations or other additional measures specific to the project site circumstances For any potentially
significant adverse impacts remaining after implementation of the applicable measures from FEIR No 563 FEIR No 563 Supplemental Analysis and standard conditions additional
mitigation measures to avoid or substantially reduce those impacts are prescribed if feasible For some impacts there are no feasible mitigation measures that can be applied to
further reduce the stated impacts
The applicability of each identified mitigation measure to the Proposed Project uses and to the specific phase phases of development is identified at a level of detail consistent with the
project description as appropriate In some cases although no significant adverse impacts are identified precautionary or preventative mitigation measures are proposed Each

Environmental Setting Impacts and Mitigation Measures 4 2 County of Orange EIR No 573 130
130 Page 131 132
measure is assigned a unique letter number code to assist in tracking the measures during the mitigation monitoring and reporting process
Level of Significance After Mitigation This section describes the level of significance of
all identified potentially significant adverse impacts after implementation of applicable mitigation measures

No Project No Activity Comparison The potential impacts of the No Project No Activity Alternative compared to the Proposed Project are addressed in this subsection Under this
alternative to the Proposed Project no aviation or other land uses would occur on the MCAS El Toro site and the site would be closed to further activity At JWA the airport is assumed
to operate at a maximum future passenger activity level of 8.4 MAP Aviation demand projected to use Orange County airports under the Proposed Project would need to use other
airports in the regional air service area A summary of the No Project No Activity Alternative is provided in Chapter 8.0 Section 8.11

It is noted that although FEIR No 563 referenced Reuse Alternative A as the proposed Community Reuse Plan CRP project this EIR EIR No 573 refers to the project adopted
by the County of Orange Board of Supervisors in December 1996 simply as the CRP

County of Orange EIR No 573
4 3 Environmental Setting Impacts and Mitigation Measures 131
131 Page 132 133
4 1 LAND USE
This section addresses the potential impacts of the Proposed Project on land use Potential issues associated with General Plan and other applicable plan consistency are addressed in
Section 4.2 General Plan Consistency The potential impacts of the Proposed Project addressed in this section were evaluated in detail in the Land Use Compatibility and
Technical Report Appendix C to this EIR The findings of that technical report are summarized in this section

The aviation and nonaviation uses under the Proposed Project are contained within the MCAS El Toro site and do not expose a new or substantially different geographic area to
direct or indirect land use impacts compared to that evaluated in EIR No 563 This section of this current EIR evaluates the Proposed Project as defined in detail earlier in Chapter 3.0

4.1.1 Summary of Conclusions in Final EIR No 563
4.1.1.1 Land Use Issues
Section 4.1 of EIR No 563 concluded that there were no land use conflicts because there were no residential industrial land use juxtapositions created by the Community Reuse Plan
CRP The EIR also tentatively concluded that the 65 dB CNEL contour for the CRP was anticipated to impact fewer acres of existing and planned on site and off site residential uses
in the County of Orange compared with the adopted Policy Implementation Line PIL It was determined that the 65 dB CNEL contour for the proposed CRP would not result in any
new impacts on the incorporated City of Irvine City of Laguna Hills City of Mission Viejo and City of Lake Forest The remainder of the impacts studied in Section 4.1 of EIR No
563 considered potential General Plan and zoning conflicts which are addressed in Section 4.2 of this EIR No 573 and land use compatibility with the aviation noise contours which
is addressed in Section 4.4 Noise of this EIR EIR No 563 concluded that no significant adverse impacts on emergency response or evacuation plans would result under the CRP

EIR No 563 concluded that the majority of existing agricultural operations on the MCAS El Toro site would be terminated and reused for research and development light industry a
regional park and the Marshburn Retarding Basin The loss of agricultural resources under the proposed CRP was determined to be a significant unavoidable adverse impact The
potential loss of agricultural resources associated with the Proposed Project is addressed in Section 4.11 in this EIR No 573 Natural Resources and Energy

4.1.1.2 Significant Effects that Cannot be Mitigated to Below a
Level of Significance

The Findings fur Final EIR No 563 concluded that there were no significant land use effects that could not be mitigated to a level of insignificance In addition to the land use impacts

EIR No 563 found that the conversion of agricultural uses on the MCAS El Toro site was a

County of Change EIR No 573 Land Use 132
132 Page 133 134
significant effect of the CRP as proposed at that time It was determined that the impacts could not be feasibly mitigated to below a level of significance
4.1 I .3 Effects Determined to be Mitigated to Below a Level of
Significance

The Findings for EIR No 563 concluded that there would be significant adverse land use impacts that could be mitigated to below a level of significance with the adoption of three
mitigation measures The mitigation measures address subsequent amendments to the Orange County General Plan consideration of zone changes and the need for surrounding
cities to consider adopting similar mitigation and are included in Section 4.1.7 of this EIR

4.1.2 Final EIR No 563 Supplemental Analysis
A Final EIR No 563 Supplemental Analysis was prepared in response to a Superior Court ruling that portions of Final EIR No 563 were inadequate or incomplete under CEQA The
Land Use and General Plan Consistency sections of EIR No 563 were found to be adequate The Supplemental Analysis provides additional analyses and conclusions for Agricultural
Resources
The trial court found that Final EIR No 563 did not adequately identify and analyze potential mitigation measures for the significant agricultural impacts Without mitigation
the CRP would result in the conversion of approximately 818 acres of prime agricultural land to urban uses The conversion of prime agricultural land constitutes a loss of an
irreplaceable resource and is considered a significant adverse impact The Supplemental Analysis considered eight mitigation measures in response to the identification of the CRP's
significant impacts to prime agricultural lands Of the eight mitigation measures analyzed two measures were identified as feasible 1 Use of 40 acres of Prime Agricultural Land for
the Benefit of the Orange County Sheriff Coroner and 2 Interim Use of Prime Agricultural Land Implementation of these two mitigation measures however would not reduce the
CRP's significant impact on agricultural lands to a less than significant level Therefore the CRP's impact upon prime agricultural laud would remain an unavoidable significant impact

Section 4.11 of this EIR addresses the impact of the Proposed Project on prime agricultural land This section addresses the potential impacts of proposed on site agricultural uses on
other uses

4.1.3 Environmental Setting Existing Conditions
4.1.3.1 MCAS El Tore
MCAS El Toro is located in central Orange County north of the Santa Ana I 5 Freeway east of the Eastern Transportation Corridor SR 133 and south of the Foothill
Transportation Corridor SR 241 The project site is 4,692 acres of which approximately
342 acres are within the incorporated City of Irvine The unincorporated portion of the site

Land Use County of Orange EIR No 573 133
133 Page 134 135

is in the LAFCO designated City of Irvine sphere of influence The Orange County Board of Supervisors is the designated Local Redevelopment Authority LRA for the reuse of the
fomer military site
The undeveloped areas in the vicinity of the project site are essentially unchanged since EIR No 563 was certified although development of infill parcels has continued to occur There
have been two changes in the regulatory setting of MCAS El Toro the Community of Leisure World has incorporated as the City of Laguna Woods and the City of Lake Forest
annexed additional land in the vicinity of the eastern boundary of the MCAS El Toro site In addition the community of Ranch0 Santa Margarita voted in favor of incorporation
which will become effective January 1 2000 The City of Laguna Woods has not yet adopted its municipal General Plan The updated boundaries of the City of Lake Forest are
reflected in the Land Use Compatibility and General Plan Consistency Technical Report Appendix C and throughout this EIR

The City of Irvine has proposed an annexation of MCAS El Toro and nearby James A Musick Branch Jail A Notice of Preparation NOP was prepared and a Draft
Environmental Impact Report dated March 3 1 1999 was circulated for the proposed annexation and associated General Plan Amendment and Zone Change The City of Irvine
prepared and considered a Final EIR but the City Council rejected the Final EIR and the proposed annexation application was not submitted to Local Agency Formation Commission

LAFCO Instead the City deferred further consideration pending completion of a revised land use plan Millennium Plan II The City prepared a revised land use plan for Planning
Areas 30 El Toro Planning Area 7 and 51 the unincorporated portion of the MCAS El Toro site located in the City of Irvine sphere of influence A new NOP was released on
August 13 1999 for Revised City of Irvine Planning Areas 51 35 and 30 Annexation General Plan Amendment Pre Zoning and Zone Change and the revised Draft EIR was
released for public review on November 24 1999
The Orange County Board of Supervisors adopted a Sphere of Influence policy on July 27 1999 affirming the County's opposition to annexation proposals that impact County
regional facilities necessary for the County's core business bctions The City of Irvine proposal to annex the MCAS El Toro site as well as the Musick Branch Jail site is
inconsistent with this policy Figure 4.1 l

4.1.3.2 John Wayne Airport JWA
John Wayne Airport JWA is located on a 504 acre site approximately eight air miles west of the El Toro site Most of the airport site is located in unincorporated Orange County
with a small portion along the northwest airport boundary near Paula o Avenue extending into the city limits of Costa Mesa Surrounding jurisdictions include the cities of Irvine
Newport Beach and Costa Mesa Figure 4.1 2 JWA is located immediately adjacent to and south of I 405 and east of SR 55

County of Orange EIR No 573 Land Use 134
134 Page 135 136
4.1.3.3 Existing Land Uses MCAS El Tom
Most of the MCAS El Toro site is relatively flat and is located approximately 12 miles east of the Pacific Ocean The base of the foothills of the Santa Ana Mountains near the
Cleveland National Forest is to the north and east of the site The main portion of the site is generally square in shape with additional parcels of land extending to the east a hilly area
used by the military for housing and an adjacent area for ordnance storage and to the north and south historically used for agricultural leases

The existing development on the MCAS El Toro site is clustered primarily in the four quadrants framing the airfield which are Planning Areas 1 through 4 as shown in
Chapter 1 see also Figure l 1 There are approximately 1,800 structures on the MCAS El Toro site The primary concentration of development is in Planning Area PA 1 adjacent
to the main gate at Trabuco Road and is focused mainly on administration personnel support and community support activities Maintenance operation storage uses and
housing areas are also located in PA 1 Various buildings including the MCAS and COMCABWEST headquarters building and the officers club are located in the
administration area in PA 1 PA 2 is characterized by airfield operations maintenance commercial and storage uses An equestrian complex is located in PA 2 as are housing
areas with the largest concentration of units being north of Irvine Boulevard The airfield operations building is also located in PA 2 PA 3 is characterized by airfield operations and
recreation facilities including the existing golf course PA 4 is characterized by airfield operations and base support facilities Industrial uses such as aircraft hangars and
warehouses are also found in PA 4
PA 5 is the northern panhandle north of Irvine Boulevard and east of the Eastern Transportation Corridor ETC The Marshbum Retarding Basin exists on the site and is
proposed to remain The remainder of PA 5 is currently used for agricultural purposes
A 970 acre parcel designated PA 6 Habitat Reserve is located northeast of Irvine Boulevard in the northeast portion of the MCAS El TOYO site and is currently used for open space a
pistol range munitions magazines an explosive ordnance disposal site and an archery area The land will be subject to a federal agency to federal agency property transfer and is not
part of the Proposed Project Descriptions of the proposed uses for this area are included for
informational purposes

PA 7 is located within the city limits of Irvine The existing use is agriculture
The airfield PA 8 includes five runways consisting of two 10,000 foot long north south parallel runways Runways 16L134R and 16R 34L two 8,000 foot long east west runways
Runways 7L125R and 7R 25L one 3,900 foot long limited use runway Runway 3 21 connecting taxiways tiways and aircraft parking aprons

Land Use County of Orange EIR No 573 135
135 Page 136 137

There are existing and planned as designated in adopted City and County General Plans light industrial business park uses in the vicinity of MCAS El Toro genemlly west south
and east of the site Figures 4.1 3 and 4.1 4 The majority of existing and planned commercial areas in the vicinity of the MCAS El Toro site are west and south of the site
There are existing and planned residential areas farther to the north and east of MCAS El Toro There are existing agricultural uses north west and south of the site

The Irvine Transportation Center is southwest of MCAS El Toro on the east side of Barranca Parkway An existing rail line which crosses the southern part of the MCAS
El Toro site is currently used for Metrolink commuter rail and Amtrak passenger and freight services The Musick Jail site is located adjacent to the easterly boundary of MCAS
El Toro There are currently six streets and highways providing access to MCAS El Toro Trabuco Road and Marine Way on the west Irvine Boulevard on the north Alton
Parkway Astor Street on the east and Alton Parkway and Barranca Parkway Muirlands Boulevard on the south For more information about the existing circulation system see
Section 4.3 Transportation and Circulation
In the existing 1998 time ame the MCAS El Toro emergency response and evacuation plans for the site are under the authority of the DON MCAS El Toro has the capacity for
processing and storing Iarge quantities of cargo and was viewed as a likely staging area for emergency response in the event of a large catastrophe in the region such as a severe
earthquake Coordinating use of MCAS El Toro facilities during emergencies was part of the County's responsibilities for preparation maintenance and implementation of
emergency response plans and emergency evacuation plans
The Orange County Emergency Plan is the official emergency plan for the County The Plan addresses the County's response to extraordinary emergency situations associated with
natural disasters technological incidents and nuclear protection operations It provides operational concepts relating to various emergency situations identifies components of the
Local Emergency Management Organization LEMO and describes the overall responsibilities of the LEMO for protecting life and property and assuring the overall wellbeing
of the population It also identifies the sources of outside support that might be provided through mutual aid and specific statutory authorities by other jurisdictions state
agencies and the private sector The Plan serves as a basic reference and training document for emergency preparedness response recovery and mitigation and provides the authority
and basis for the development of more detailed departmental and functional standard operating procedures

In 1996 the County of Orange working with the Governor's Office of Emergency Services ES implemented the Standardized Emergency Management System SEMS per the
requirements identified in the California Code of Regulations Title 19 Division 2 Section 2443 SEMS is intended to standardize response to emergencies involving multiple
jurisdictions or agencies SEMS requires emergency response agencies to use basic principles and components of emergency management including multi agency or

I The base source for the land use information is the County of Orange Portions of the study area were
updated using 19 Thomas Brothers aerial photography and some site inspections occurred in 1998

County of Orange EIR No 573 4l s Land Use 136
136 Page 137 138
interagency coordination the operational area concept established mutual aid systems and the Incident Command System KS
4.1.3.4 Existing Land Uses John Wayne Airport
John Wayne Airport is located approximately eight air miles west of the El Toro site immediately adjacent to and south of the I 405 Freeway and east of SR 55 Freeway Figure
4.1 2 The airport is located within unincorporated Orange County with a small portion of the site extending into the City of Costa Mesa and is owned and operated by the Cbunty of
Orange The airfield is bound on the north by the I 405 Freeway with long term parking and commercial uses between the I 405 and Main Street north of the airport A portion of
the golf course south of the airfield is within the boundaries of JWA
In 1998 JWA the only commercial airport in the County served 7.5 MAP and accommodated 417,000 aircraft operations One of only two airports in the County that
accommodates general aviation JWA has two full service fixed based operators and is home to more than 500 general aviation aircraft The airport encompasses a total of approximately
504 acres The existing facilities and the passenger serving capabilities of JWA include an approximately 337,900 square foot terminal with 14 air carrier aircraft gates ten aircraft
parking positions and 16 remote parking positions for parking jet aircraft overnight RONs The airfield consists of two runways 19R lL 5,700 feet and 19LIlR 2,887 feet used for
general aviation only An expanded discussion of existing facilities at JWA is found in Airport System Master Plan ASMP Technical Report 3 Existing Facilities OCAA 1998

4.1.3.5 Surrounding Jurisdictions MCAS El Tom
The MCAS El Toro site is bound by the City of Irvine on the south and the east and unincorporated County of Orange on the north and west Other nearby local jurisdictions
include the cities of Lake Forest Laguna Hills Laguna Niguel Laguna Woods and Mission Viejo and the unincorporated areas of Aliso Viejo Foothill Ranch and Portola Hills Figure
4 l l Ranch0 Santa Margarita is approximately 3.5 miles east of MCAS El Toro and will
be incorporated as of January 1,200

Much of the area immediately adjacent to the MCAS El Toro site boundary is business park agricultural uses and public facilities and there have been no substantial changes in existing
land uses since the certification of EIR No 563 Figure 4.1 3 The area adjacent to PA 3 is developed with the James A Musick Branch County Jail and business park uses including a
supermarket distribution center located within the h vine Spectrum development The area adjacent to PA 4 is developed primarily with business park uses and the Irvine
Transportation Center The Irvine entertainment retail center is located farther south of the El Toro site The uses to the northwest of the project site are agricultural uses along Sand
Canyon Avenue North of the site are agricultural uses generally regarded as transitional uses prior to urban suburban development cznge Cuun General Plan Land Use
Ekvnent Definition ofG en Space Category p LU 3 19 and lands enrolled in the Natural Communities Conservation Program JCCP Planned land uses as depicted in the adopted
General Plan are shown on Figure 4.1 4

Land Use County of Orange EIR No 573 137
137 Page 138 139
4.1.3.6 Surrounding Jurisdictions JWA

JWA is bound by the cities of Costa Mesa Irvine and Newport Beach Figure 4.1 2 and is very near portions of the City of Santa Ana The airfield is bound by SR 73 on the south
with a golf course and commercial uses along the south side of SR 73 The unincorporated County area known as Santa Ana Heights lies southwest of the airport Adjacent uses are
primarily commercial business park and light industrial
Land uses along MacArthur Boulevard east of JWA are a mix of commercial and light industrial including airport serving uses such as restaurants and ho Figure 4.1 5
Industrial uses predominate along the western boundary of the site Planned land uses as depicted in the adopted General Plans surrounding JWA are shown in Figure 4.1 6
Surrounding existing uses are generally reflected in the General Plan designations
Business Park uses in the City of Irvine north of the 145 Freeway and along MacArthur Boulevard north of Campus Drive in the Irvine Business Center
Commercial and office uses in Newport Beach along Campus Drive east of JWA Recreation and open space at the end of the runways south of the airport
Employment uses and residential uses for the area south of SR 73 and Industrial park uses west of the airport between Redhill Avenue and JWA in the City
of Costa Mesa

4.1.4 Methodology
The potential land use impacts of the Proposed Project were evaluated by comparing the compatibility of existing and planned per General Plans off site land uses and proposed
on site land uses A Geographic Information System GIS database from Orange County was updated for existing and planned land uses Analyses of the data relating to potential
impacts can be found in the Land Use Compatibility and General Plan Consistency Technical Report in Appendix C The methodology applied in this EIR is similar to that
used in EIR No 563 except that a GIS application was not used for the earlier EIR

4.1.5 Thresholds of Significance
The first Threshold of Significance is derived from Appendix G the Environmental Checklist form of the CEQA Guidelines as amended on January 1 1999 and differs slightly
from that presented in EIR No 563 The second and third Thresholds of Significance are derived from the County of Orange EnvironmentaI Analysis Checklist A project may be
deemed to have a significant impact related to Iand use if it will

County of Orange EIR No 573 Land Use 138
138 Page 139 140
0 ii
iii

Physically divide an established community or Create substantial incompatibilities between the Proposed Project's land uses and
adjacent existing and planned land uses including but not limited to incompatibilities regarding land use type and operational characteristics
Impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan

4.1.6 Project Impacts
4.1.6.1 Assessment of Impacts Compared with EfR No 563
The land use impact topics addressed in EIR No 563 included the following
l Potential impacts of the Proposed Project related to the planned land uses on the MCAS
El Toro site l Potential impacts of the Proposed Project related to compatibility with existing land uses

l Potential noise impacts related to land use
9 Impacts related to General Plan goals and policies

The same topics are addressed in this EIR but not all in the same place Noise impacts are addressed in this EIR in Section 4.4 and impacts relating to General Plan goals and policies
are addressed in Section 4.2
Several major components of the project description have changed since the certification of EIR No 563 The CRP analyzed in EIR No 563 proposed an airport that could serve
approximately 38 MLAP at El Toro The Proposed Project analyzed in this EIR is projected to be able to serve approximately 28.8 MAP at El Toro with another 5.4 MAP served at
JWA for a total of 34.2 MAP served by the ASMP The reduction in proposed air carrier service has resulted in fewer acres within the projected 65 dB CNEL contour compared with
the CRP The CRP proposed project also involved shorter runways at El Toro and no commercial carrier service at JWA

The nonaviation component of the El Toro project in EIR No 563 was a mix of commercial office education habitat reserve golf courses compatible institutional
research and development light industrial residential and a new transportation center The nonaviation component of the El Toro project being analyzed in EIR No 573 includes
approximately 1,000 acres of wildlife habitat open space and recreation land uses The open space land uses encompass golf courses equestrian trails parks and fields for soccer
baseball and softball as well as agriculture Open space habitat will also be provided in the approximately 970 acre federal Habitat Reserve area to be conveyed f m DON to another
federal agency Other revenue support uses include a business park a transportation center

I Recreation and public open space including agriculture total 853 acres An additional 194 acres is
Restricted Open Space such as Runway Protection Zones The 39 acre Marshburn Retarding Basin is not included in the open space calculations The 970 acre federal Habitat Reserve is not part of the

Proposed Project
Land Use 4bl a County of Orange EIR No 573 139
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I

1
I

cultural and institutional uses and public facilities Public facility lease candidates include the Orange County Transportation Authority OCTA for a bus maintenance facility and the
Orange County Fire Authority OCFA for two fire stations
EIR No 563 addressed the Community Reuse Plan for the MCAS El Toro site only EIR No 573 analyzes an Airport System Master Plan for Orange County including a 20 year
planning horizon for the proposed airport and nonaviation revenue support uses for the El Toro site and the proposed future aviation service at JWA

The land use impacts associated with the CRP and the Proposed Project generally include 1 the extent of the 65 dB CNEL contour reviewed in greater detail in Section 4.4 Noise
2 the compatibility of Proposed Project land uses with existing and planned adjacent uses and 3 whether there occurs the physical division of an established community Land use
compatibility with the proposed CNEL noise contours is analyzed in Section 4.4 Noise
Both reuse projects involve the demolition of existing group quarters and low density housing units In 1998 these housing units were planned to be vacated by July 1999 They
are currently vacant and will remain so as a result of the decision to close the MCAS El Toro military base and therefore do not form a community Both the CRP and the
Proposed Project would take place within the confines of the established MCAS El Toro boundary with off site development limited to several transportation improvements Since
there would be no development of land external to the MCAS El Toro site there would be no physical division of an established off site community

JWA was not evaluated in EIR No 563 so changes to JWA are compared with the existing conditions and the approved JWA Master Plan The extent of the 65 dB CNEL contour
would be reduced under the Proposed Project service level of 5.4 MAP at JWA compared with the existing service level of 7.5 MAP and the approved service level of 8.4 MAP The
existing land uses adjacent to JWA reflect the applicable adopted General Plans and are generally built out These uses are primarily light industrial and business park as well as
some airport serving uses such as hotels and restaurants The existing uses are compatible with the JWA facility and these conditions would not change under the Proposed Project
All proposed improvements to JWA would be implemented within the existing JWA site boundary therefore the Proposed Project would not divide an established community

4.1.6.2 Phasing and Base Transition Plan
Implementation of the Base Transition Plan BTP contemplates limited continuation of existing uses at El Toro or uses that are consistent with historical uses or activities of the
base The BTP will not affect land use and is not expected to cause any significant impacts to land use because implementation of the BTP will utilize existing facilities on site and will
not require construction of new facilities or other improvements that would physically affect land use

County of Orange EIR No 573 Land Use 140
140 Page 141 142
The BTP allows for some interim reuse of existing buildings and facilities at El Toro until implementation of the ASMP reaches a phase that requires the demolition of a facility or its
conversion to the permanent reuse contemplated by the ASMP The buildings that will be reused are within Planning Areas 1 through 4 primarily for interim business park or
warehouse use In Planning Areas 3,5 and 7 586 acres of agriculture will also continue as interim uses Portions of PA 5 adjacent to the ETC will continue to be used for agriculture
until Phases 2 and 3 A site that is currently used for agriculture by the James A Musick Branch Jail will continue to be utilized until Phase 4 Sites east of the Runway Protection
Zone RPZ at the south end of the runways in PAS 3 and 7 will continue until Phase 4
The sites designated for interim agriculture uses were used in 1998 and are currently used for agriculture The existing agriculture is adjacent to existing established uses therefore
the Proposed Project interim agricultural uses will not create any new impacts The planned uses some are existing as well adjacent to interim agriculture include the ETC and
Marshburn Retarding Basin adjacent to interim agriculture in PA 5 the federal Habitat Reserve and branch ja iI adjacent to interim agriculture in PA 3 and a planned IRWD
facility golf course habitat area and business park adjacent to interim agriculture in PA 7 These planned land uses adjacent to interim agriculture are not especially dust or noise
sensitive Furthermore the levels of dust and noise from the existing agricultural operations do not create substantial land use incompatibilities A final factor in the significance
determination is that rules and regulations are in place that control the agricultural operations In conclusion the interim agriculture uses do not create any new impacts and do
not conflict with the operational characteristics of adjacent planned land uses Therefore there are no significant land use impacts created by the interim agriculture

Areas adjacent to Planning Areas 1 through 4 are generally existing an or planned for agriculture open space and business park employment The operational characteristics of
the proposed interim business park and warehouse uses are not expected to conflict with these existing or planned off site uses Therefore there are no significant land use impacts
associated with the BTP at MCAS El Toro
The I3TP contains provisions for coordination of emergency and disaster response activities
at the Proposed Project site during the transition period following MCAS El Toro closure These provisions identify emergency response personnel coordination roles and

responsibilities notification lists evacuation routes and security management
The Proposed Project at MCAS El Toro will involve development of a commercial airport preservation of existing natural areas and improvements to and development of nonaviation
revenue support uses The development will occur between the years 2000 and 2020 and has been analyzed in five year phasing increments The improvements will occur
exclusively within the boundary of MCAS El Toro with the exception of off site transportation improvements For more information see Section 4.3 Transportation and
Circulation The Proposed Project at JWA is contained completely within the existing boundaries of that airport and will not physically intrude into off site properties The
Proposed Project at completion and during each of the four phases would not physically divide an existing community

Land use County of Orange EIR Nom 573 l l0 141
141 Page 142 143
The continued introduction of quieter aircraft into the forecast fleet mix results in a slight reduction of the 65 dE3 CNEL contour in 2020 compared to 20 15

The 65 dB CNEL noise contour north of the MCAS El Toro site will be slightly larger at the end of Phase 3 2015 than at project build out 2020 Much of the area within the contour
is designated Open Space The Open Space designation is not incompatible with the 65 dB noise contour A portion of the area witi the noise contours is designated Suburban
Residential in the General Plan Residential uses are not compatible with the 65 dB CNEL contour There are 599 acres within the Proposed Project 65 dB CNEL contour in 2015 and
48 1 acres of the Suburban Residential designation within the contour in 2020 The majority of this impacted area is enrolled in NCCP for purposes of retaining the existing coastal sage
scrub habitat Therefore there is little likelihood for development proposals for the area designated residential In addition Mitigation Measure GPC 2 in Section 4.2 requires the
County of Orange to negotiate with any affected landowners to reallocate land uses densities intensities development standards and development allocations forecasts to be
compatible with the 65 dI3 CNEL contours Therefore the 2015 noise contour does not create a significant urmitigatable impact

The analysis of the proposed on site uses below concludes that the Proposed Project does not create substantial incompatibilities between the project's land uses and adjacent off site
existing and planned land uses in accordance with Significance Threshold ii The order or timing of the on site improvements will not alter this conclusion therefore the Proposed
Project will not create substantial incompatibilities at the time of project completion or during any of the four phases

4.1.6.3 Impacts of the Proposed Project on General Plan and Existing Land Uses Adjacent to the MCAS El Toro Site
The impacts of the Proposed Project on planned per applicable General Plan off site land uses are reviewed for each of the perimeter Planning Areas 1 through 7 shown in Chapter 3
Project Description PA 8 is the airfield and it is located interior to the site Figure 4.1 4 depicts planned land uses in the vicinity of the El Toro site based on the General Plans of
adjacent jurisdictions also refer to the Proposed Project Land Use Plan in Chapter 3
The uses proposed in the BTP include the reuse of existing buildings in PAS 1 through 4 for business park and warehouse uses as well as the continuation of some agriculture uses in
PAS 3 5 and 7 and the continued use of the existing stables in PA 2 and golf course in PA 3 The reuse or continued use of these facilities represents a lower activity level than
1998 existing conditions on the base therefore there are no impacts associated with the operation of these uses that would exceed 1998 conditions

The terminal complex will be located in PA I a triangular area southeast of the ETC Adjacent lands between the project site and the ETC are currently used for light industrial
south side of Trabuco Road an electrical substation and agriculture Land west of Sand Canyon Avenue is in agricultural use The Proposed Project will have no significant direct

County of Change EIR No 573 Land Use 142
142 Page 143 144
impact on the existing light industrial uses and the electrical substation adjacent to Planning Area 1 but the acquisition of land for right of way that is currently used for agriculture
would result in a loss of agricultural lands
The Orange County General Pian classifies most of the adjacent lands for employment uses immediately west of the southern portion of PA 1 Employment uses include light and
service industries and professional administrative office uses and related parking lots or structures characterized by low impacting activities contained indoors with no outside
storage display maintenance repair or other operations that can result in adverse visual noise or air quality impacts to adjacent properties Employment uses and development

would be similar to and compatible with the hotel ancillary commercial uses parking and other terminal uses proposed in the adjacent areas of PA 1 The proposed terminal facilities
would have no operational conflict with the planned employment uses off site therefore there is no significant impact on planned uses adjacent to PA 1

PA 2 is located in the northeast quadrant of the base on either side of Irvine Boulevard Existing uses include the equestrian complex mihry airfield and housing east of Irvine
Boulevard Proposed on site uses are aviation support in the areas adjacent to the runways and open space park uses along either side of Irvine Boulevard continuation of the
equestrian complex west of Irvine Boulevard and cultural institutional uses in the northeast portion of PA 2 A Regional Park has been designated for a 265 acre site in PA 2

The adjacent existing uses northeast of PA 2 include the University of California Agricultural Research Station a commercial composting yard and agricdtural uses
primarily in nursery production and a natural habitat area The Proposed Project park uses planned in this planning area are passive and active and recreational uses and visitors will
be prohibited from entering adjacent property No overnight or night lighted activities are planned adjacent to the proposed federal Habitat Reserve or agricultural lands The
proposed Cultural Institutional uses would be very active and would include evening and night lighted uses and development However the CuIturallInstitutionaI site will be lowered
25 vertical feet in Phase 1 by grading This grading will result in 25 foot high 2 l landscaped slopes separating the site from the adjacent Reserve and agricultural uses In
addition an open space buffer is proposed surrounding the Cultural Institutional site to add f ther separation and to limit access to the adjacent sites Therefore the Proposed Project
will not have adverse effects on the adjacent agriculture uses and Habitat Reserve and there are no significant impacts on existing land use created by the proposed uses in PA 2

The General Plan off site land use for the area north of PA 2 in unincorporated Orange County is Open Space reflecting the existing agricultural uses A passive open space
perimeter buffer and 25 foot high cut slopes are provided around the Cultural Institutional site ensuring capability The Cultural institutional site access roadway is sited near the
northern edge of the park separating the proposed airplane museum site and adjacent passive park area from the active playfields and larger passive park area Figure 4.14 7
The location of the roadway to the far northern portion of the park site reserves large continuous areas for recreation and passive open space therefore traffic impacts to the
recreation activities are minimal lXe peak use periods for the culturaVinstitutiona1 and park

Land Use County of Orange EIR No 573 4342 143
143 Page 144 145

sites will be complementary with the branch university and other institutional activities being greatest between Monday and Friday and the park use being greatest on the
weekends further minimizing operational conflicts between the two on site uses The Proposed Project park uses along the perimeter of this planning area will not have adverse
affects on the planned open space and federal Habitat Reserve therefore there are no significant impacts on planned land use created by the proposed uses in PA 2

PA 3 is located in the southeast quadrant of MCAS El Toro generally bound by Borrego Channel on the east two runways on the west and north and a portion of Irvine
Boulevard Trabuco Road on the north with an additional triangle of land adjacent to the proposed federal Habitat Reserve Proposed Project uses are County NCCP habitat area
agriculture a golf course a wildlife habitat area along Borrego Channel aviation support air cargo facilities and leases for the Sheriff Department's agricultural uses the California
Air National Guard communications facility and IRWD reservoir and pumping station Adjacent uses east of PA 3 are a combination of commercial and industrial uses and the
James A Musick County Jail site The adjacent commercial area is characterized by heavy commercial warehouse and distribution uses including a supermarket distribution center
The off site uses are similar to the Proposed Project air cargo uses including warehouses and limited office space The on site area adjacent to the project perimeter is proposed for
Wildlife Habitat Area and golf course use There are no significant impacts on existing land uses created by Proposed Project uses in PA 3

Off site planned land uses immediately adjacent to PA 3 are within the City of Irvine Figure 4.1 4 The permitted land uses are defined in the text for PA 35 of the City of
Irvine General Plan PA 35 includes 964 acres of Research and Industrial and 116 acres designated for Community Commercial The portion of PA 35 immediately adjacent to the
project site is planned for Research and Industrial uses The driving range associated with the proposed on site golf course is expected to be lighted for evening use subject to FAA
approval The adjacent existing and planned light industrial uses are not light sensitive and would not be adversely affected The visually open low intensity wildlife habitat and golf
course uses proposed on site will not negatively impact the more intense existing and planned off site light industrial uses therefore there are no significant land use impacts to
planned adjacent uses in PA 3
PA 4 is the southwest quadrant of the El Toro site PA 4 is bound by two runways on the north and is adjacent to the City of Irvine PA 4 lies just northeast of the railroad tracks and
Barranca Parkway Proposed uses are primarily cargo facilities interior to the planning area and aviation fuel farm see Section 4.18 for further analysis Ground Service Equipment
storage and maintenance areas the OCTA rail maintenance yard a homeless service provider site food distribution warehouse storage and off use and the Airport
Transportation Center are proposed for the periphery of PA 4 The 28 acre site in PA 4 designated for a short term homeless service provider is planned for an OCTA rail
maintenance yard in the long term
OCTA has estimated that 40 rail cars would be serviced at this location Facilities would include storage tracks a maintenance building a paint shop a car wash general interior

County of Change EIR No 573 Land Use 144
144 Page 145 146
cleaning heavy repairs employee locker rooms a control and dispatch center and employee parking The operation of the rail maintenance facility would result in noise and
nighttime lighting A typical rail maintenance and storage facility is where rail vehicles are regularly serviced and stored in the off peak morning and afternoon hours and during nonoperating
hours usually between 1290 a m and 500 a m The southwest boundary of this area is formed by railroad tracks The maintenance activities include routine scheduled
inspections preventive maintenance general service repairs major repairs and regular cleaning and washing of the vehicles

Existing adjacent uses southwest of PA 4 north of Barranca Parkway are a mix of industrial and commercial and include the multi modal Irvine Transportation Center Planned land
uses are defined in Planning Areas 32 and 30 in the City of Irvine Figure 4.2 3 The City of
Irvine has designated PA 32 for Research and Industrial and Community Commercial uses PA 30 is within the Proposed Project area The City of Irvine has designated the area

for Research and Industrial and Commercid uses including a major sports stadium
The noise and lighting associated with the on site rail maintenance operation would not adversely affect the adjacent off site existing and planned light industrial and transportation
uses in the City of Irvine as they are similar in intensity and operational characteristics The other Proposed Project uses such as equipment storage and warehouse are similar or less
intense than the existing and planned off site uses particularly with regard to operational characteristics such as noise and lighting Therefore no significant adverse impacts to the
adjacent existing and planned off site land in City of Irvine PA 32 are expected to occur as a result of the Proposed Project

Planning Area 5 is a panhandle extending from Irvine Boulevard to Portola Parkway at the northern comer of the MCAS El Toro site It is currently used for agriculture and open
space Adjacent areas are currently agricultural uses including the University of California Agricultural station Proposed uses include retaining a portion of the agriculture 37 acres
continuing use of the Marshbum Retarding Basin additional airport vehicular parking and public facilities Public facilities lease candidates include OCTA for a bus maintenance yard
and County maintenance facilities and the California Department of Education for a food distribution warehouse

Approximately 54 acres designated for Public Facilities in PA 5 are to be used for a vehicle
maintenance yard and a large portion may be leased to OCTA for bus maintenance The vehicle maintenance yard site may also be used by other agencies including the County of

Orange and City of Irvine The new bus maintenance facility in PA 5 would replace bus storage dispatch and maintenance operations at the Irvine bus base currently located at
14736 Sand Canyon Avenue and create additional space for bus operations The associated

1 Implementation of this General Plan and zOne change by the City is subject to a court order in the case
of Countv of Orange vs Citv of Irvine San Diego Superior Court No 710120 requiring the City to measure the plan's consistency with the Master Plan of Arterial Highways the existing Airport Environs

Land Use Plan AELUP for El Tore and to explain how anticipated future changes e g amendment of the AELUP may
alter the existence or significance of associated impacts Further the Proposed Project is based on the County owning the land in which case it would not be subject to the City's zoning

Land Use County of Orange EIR No 573 145
145 Page 146 147

A

facilities could include operations building s maintenance buildings service buildings cleaning stations buildings and surface parting The new facility will service diesel
liquefied natural gas LNG and hybrid electric vehicles and could accommodate a fleet of 420 buses with a mix of vehicle sizes that could include articulated buses 60 feet in
length large buses 40 f t in length access buses 25 to 27 feet in length support vehicles and company equipment assigned CEA automobiles

Noise sources from the proposed bus maintenance use include the bus cleaning activities in particular vacuuming which occurs in the late night hours and bus maintenance activities
such as power equipment use and idling of vehicles The adjacent agriculture use is not a noise sensitive land use

Much of the bus cleaning and maintenance activity by necessity occurs at night during offpeak transit use periods Night activities will require lighting subject to FAA approval of
the bus yards and parking lots No sensitive light and glare receptors exist adjacent to the project site

Hazardous wastes generated from the daily operations of vehicle maintenance include used motor oil used antifkcze and batteries These would be accumulated on site in approved
containers for short periods of time prior to disposal All waste generated from daily operations including sludge and wastewater fkom steam cleaning activities would be hauled
away periodically and disposed of by a contractor approved to handle and dispose of such materials and substances in conformance with existing regulations Section 4.16
Hazardous Materials and Hazardous Waste provides additional detail about the hazardous wastes generated on site and their disposal

A food distribution warehouse is proposed for the site bound by the proposed vehicle maintenance yards existing agriculture and the Marshbum Retarding Basin on site and the
existing UC agricultural research facility off site The adjacent uses are not expected to be adversely affected by the minimal noise and traffic associated with warehouse use activities

The public facilities uses in the form of vehicle maintenance yards would be expected to generate noise light and possible air quality and odor emissions similar to an industrial use
or any other maintenance yard in the County The adjacent agriculture use is not noise or light sensitive and planned improvements to nearby streets can accommodate the t k
generated by this use therefore there are no significant impacts to existing land uses created by the Proposed Project uses in PA 5

The surrounding areas are currently planned for open space uses in the Orange County General Plan consistent with the existing agricultural uses However the definition of the
Open Space category allows the Open Space designation to be used as a transitional designation until development of the area is timely and more specific development proposak
are brought forward The Proposed Project public facilities uses and adjacent areas would be subject to aircraft noise from OCX therefore sensitive uses such as residential would not
be planned Therefore there is no significant land use impact with regard to planned land uses adjacent to PA 5

County of Orange EIR No 573 Land Use 146
146 Page 147 148
PA 6 is the most eastern portion of the MCAS El Toro site While historically part of the base it is not part of the Proposed Project A federal to federal agency property transfer is
currently proposed fkom DOD to Department of the Interior FAA and FBI Possible impacts of the proposed habitat area are included for information purposes PA 6 was a
restricted access area under military jurisdiction with a pistol range munitions magazines a fuel storage and explosive ordnance disposal site and an archery area There are also two
military IandfiIls that will be remediated by the DOD
Proposed uses include a federal Habitat Reserve FAA radar communications facility and continuation of the pistol range and Explosive Ordnance Disposal EOD use Adjacent offsite
uses are agricultural uses and vacant land to the north and east an area of light industrial uses to the east and James A Musick Branch County Jail to the south Figure 4.1 3 Offsite
areas to the northeast are in the Baker Ranch and Foothill Ranch business parks both in the City of Lake Forest Areas to the north and northwest of MCAS El Tore and PA 6 are in
unincorporated Orange County and are planned for suburban residential development and open space Orange County General Plapr Lund Use Element Map The areStS
to the southwest and south are within Planning Areas 2 and 3 of the Proposed Project Areas north

of MCAS El Toro that are designated for residential use in the Orange County General Plan would not be within the Proposed Project 65 dB CNEL contour

The NCCP determined that there were a few areas within the designated NCCP habitat reserve system where the biological resources are so sensitive that no access would be
appropriate The proposed federal Habitat Reserve in PA 6 is one of the areas where only very limited access will be allowed The NCCP HCP Public Access and Recreation Policies
policy 3 page II 3 32 states Public access and recreation shall be prohibited in those areas designated due to the potential for serious adverse impacts such uses could have on
Target Species and sensitive habitats Final Central and Coastal Subregion Natural Community Conservation Han Habitut Conservation Hun prepared by R J Meade
Consulting Inc for the County of Orange and United States Fish and Wildlzfe ServiceKaZzfornia Department of Fish and Game JuZy 17 1996 Limited exceptions to the
access restrictions allow controlled access to the pistol range and EOD
The federal Habitat Reserve will be a passive open space use with very limited access and little or no impacts on any surrounding uses therefore there are no significant land use
impacts on existing or planned land uses for PA 6
PA 7 is the southern extension of the El Toro site located in the City of Irvine city limits
south of the railroad tracks Existing use is agriculture It is surrounded by light industrial and business park uses including the Irvine Technology Center and the Irvine Industrial

Complex Proposed Project uses are agriculture golf wildlife habitat area business park public use facilities and restricted open space with some ancilhuy aviation facilities such as
navigation aids City of Irvine PA 35 east of Proposed Project PA 3 and PA 7 is planned for Research and Industrial and Community Commercial and contains the Irvine Auto
Center and a supermarket distribution center City of Irvine PAS 32 33 and 34 west of Proposed Project PA 7 are planned for a mix of commercial uses Figures 4 f 4 and 4.2 3 in

Land Use County of Orange EIR No 573
4ml4e 147
147 Page 148 149


the following section PA 32 is intended for Research and Industrial and Community
Commercial uses and includes the Irvine Multi Modal Center and the Price Costco Center PA 33 is planned for Regional Commercial with four acres set aside for Conservation and

Open Space Preservation Land This area contains the recently completed Irvine Entertainment Center and several office buildings City of Irvine PA 34 is planned for
Research and Industrial Community Commercial and 25 acres of Conservation and Open Space Preservation land The existing use is
primarily agriculture with several commercial uses including a titure store a recreational vehicle storage lot and a golf driving range

The Proposed Project perimeter uses in PA 7 are open space golf wildlife habitat business park and an IRWD facility There are no significant land use conflicts between the
proposed less intense open space and business park uses adjacent to existing and planned similar or
more intense light industrial and business park uses The proposed business park will be similar in appearance and in operational characteristics to the existing light industrial

and business parks and planned land uses in the surrounding area therefore there are no
significant impacts on existing or planned land uses for Planning Area 7

Planning

Area 8 is the proposed airfield composed of runway complexes 16 34 and 7 25 and associated taxiways and connecting taxiways as described in Chapter 3 Project
Description Since the airfield is internal to the site and has been an airfield since the 194Os there are no significant land use impacts to existing or planned adjacent land uses

4.1.6.4 Noise Impacts Related to Sensitive Land Uses
Section 4.4 addresses noise impacts on sensitive land uses

4.1.6.5 Impacts Related to General Plan Goals and Polices
Section 4.2 addresses the consistency of the Proposed Project with applicable General Plan
and other adopted policies

4.1.6.6 Impacts of Proposed Transportation Improvements Several
off site traffic improvements are included as part of the Proposed Project at MCAS El Toro

l Connector ramps from ETC to the airport terminal area
l Widening of Trabuco Road from Sand Canyon Avenue to the hotel and retail complex
and l
Realignment of Marine Way between Sand Canyon Avenue and Employee Parking Road

The
ramps that would directly con t the terminal loop roadway system with the ETC would involve construction
of three lane connector ramps from the northbound ETC to the terminal loop road from the terminal loop road to southbound ETC and awriliary lanes on

the ETC between the connector ramps and the I 5 Freeway interchange These
County of Orange EIR No 573 Land Use 148
148 Page 149 150
improvements can be physically made within the existing ETC right of way and on the MCAS El Toro site therefore impacts to other properties would not be significant
The Proposed Project includes the widening of Trabuco Road to a four lane divided roadway east of Sand Canyon Avenue Right of way acquisition will be required on the south side
of Trabuco Road between the ETC and the terminal area and on both sides of Trabuco Road between the ETC and Sand Canyon Avenue The right of way acquisition would total
approximately one acre of land along Trabuco Road and would not render any existing uses unusable or require the taking of any existing principal structures Therefore there are no
significant land use impacts The right of way acquisition will result in a loss of agricultural land which is included in those impacts analyzed in Section 4.1 I Natural Resources and
Energy
The realignment of Marine Way to become an extension of Air Cargo Way east of Sand Canyon Avenue is intended to provide a suitable road to serve the proposed air cargo and
other uses at the southwestern portion of the site and will involve the acquisition of approximately 1.8 acres of off site right of way The realignment will bisect the southern
portion of the existing OCTA bus yard at Sand Canyon Avenue and Marine Way just north of the I 5 freeway OCTA plans to relocate the bus yard to a site within PA 5 of the
Proposed Project in Phase I and the realignment of Marine Way will occur in Phase 1I therefore the impact on bus maintenance use is not significant

4.1.6.7 Impacts of Proposed Agricultural Uses
The DON leased out approximately 1,040 acres of land for agricultural purposes at the El Toro site in 1998 of which 726 acres have been classified as Prime Farmland and 92
acres have been classified as Farmland of Statewide Importance by the State Department of Conservation Farmland Mapping and Monitoring Program As summarized in
Table 4 l l the Proposed Project retains 139 acres of agricultural land including a 37 acre parcel north of Irvine Boulevard and three parcels totaling 40 acres located adjacent to the
federal Habitat Reserve and James A Musick jail facility in the eastern portion of the property One parcel totaling 60 acres is located in the southern portion of the site within
the City of Irvine An analysis of the loss of prime and unique farmland can be found in
Section 4.11 All of the land proposed for agriculture is currently used for agriculture and was in the 1998 base year therefore there are no new impacts as a result of the continuation

of agriculture as part of the Proposed Project

Land Use County of Orange EIR No 573 149
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5

Table 4 l l Proposed Agricukural Use
cemgm I Pmpqd me
Cultivation of nursery plants Cultivation of nursery plants or row

3 27.0 3 13.0
3 0.4 7 61.4

administrative ofices operations and maintenance
Yard Row crops
Open space C n space
Row crows

crops administrative offices operations and maintenance yard
Musick Jail row crops Musick Jail row crops
Musick Jail row crops Row crorxz

The proposed agricultural use in Planning Area 5 as shown in Figure 3 2 is situated in the runway departure safety zone The County Sheriff Department requested 40 acres in
Planning Area 3 for continuing agriculture use in conjunction with an expansion of the County's James A Musick jail facility Approximately 25 acres of the request area are
currently under cultivation and classified as Prime Farmland The Sheriff proposes to place the entire 40 acres in long term cultivation in conjunction with the County's existing
agricultural program at the jail facility A portion of the 40 acres is located within the runway departure safety zone Agriculture is compatible with the land use restrictions
associated with the runway departure safety zone
There are potential impacts between the Proposed Project agricultural operations and adjacent uses specifically dust runoff access and safety Many of these impacts can be
reduced through standard procedures and requirements For example SCAQMD regulations require that all sources of fugitive dust be controlled including agriculture
Beginning July 1 1999 crop farmers on sites greater than ten acres within the South Coast Air Basin are subject to AQMD Rule 403 Surface runoff can affect adjacent properties if
not contained on site or directed to appropriate drainage facilities Enforcement of County ordinances and County lease agreement requirements will be used to regulate runoff Rules
administered by the Regional Water Quality Control Board control nitrates and other runoff constituents

There is a potential for operational conflicts between agriculture and adjacent uses as a result of episodic dust noise from early morning operations and sporadic noise related to
the operation of farm equipment The agriculture in PA 5 will be located at the end of the RPZ and surrounded by the Marshbum Retarding Basin and Channel surface parking
vehicle maintenance facilities and a food distribution warehouse Similarly the agriculture area in PA 7 is adjacent to an RPZ and is surrounded by a proposed IRWD facility golf
course a small portion of the habitat area and business park uses Approximately 40 acres of agriculture are located on two parcels in PA 3 for use by the James A Musick Branch
Jail These two sites are located adjacent to roadways the Habitat Reserve and the branch jail All of the planned uses adjacent to on site agriculture are not sensitive receptors for
dust Also the proposed uses adjacent to agriculture would not be noise sensitive and

County of Orange EIR No 573 Land Use 150
150 Page 151 152
therefore would not have conflicts with the early morning operations and noise related to the operation of farm equipment Therefore the proposed on site agricultural uses do not
create a significant adverse impact
Uses in the runway approach and departure safety zones must comply with land use restrictions regarding site coverage height of structures and concentrations of people
Agricultural uses are able to comply easily with these restrictions because they typically
involve only small accessory structures and because people on site are usually limited to employees who are typically at less than the maximum 40 60 persons per acre for an inner

safety zone and 60 100 persons per acre for an outer safety zone
The majority of the nonaviation open space areas are not on prime agricultural land although a small portion of the Wildlife Habitat Area and northern golf course in Planning
Area 3 will be on designated agricultural resource land The conversion of the agriculture area proposed for inclusion into the northern golf course is needed to ensure the golf
course's recreation value after runway extensions and other improvements result in a loss of existing golf holes The southern golf course proposed in PA 7 will result in the conversion
of some of the agricultural land in that area It is in an arca currently planned for urban uses in the City of Irvine General Plan The proposed golf course is consistent with the safety
zone restrictions associated with the proposed commercial aviation use at MCAS El Toro
Agriculture is not an approved use for the areas at the ends of runways in the Runway
Protection Zone RPZ The area at the end of the runway in PA 7 is in the RPZ for Runways 16 34 therefore the agriculture use in the RPZ will be converted to Restricted

Open Space
The potential incompatibilities identified between the agricuhural uses and adjacent or nearby developed uses are not significant adverse impacts Mitigation is included as a
precautionary measure

4.1.6.8 Impacts of Proposed Safety Zones
The definition of the proposed safety zones at MCAS El Toro and an analysis of the safety aspects of the proposed airport use at MCAS El Toro and JWA are detailed in Section 4.15
Public Safety
Land use restrictions are associated with RPZs and additional safety zones that extend beyond the RPZs FAA guidelines specify that RPZs be established at the end of each
runway to protect people and property on the ground
The RPZs at the end of each of the four runways in the Proposed Project are on site or will be controlled by the airport under avigation easements therefore there are no off site
impacts associated with the RPZs see Figure 4.15 l 1
The Departure Safety Zone DSZ for the north end of Runway 16 34 falls primarily within Planning Area 5 The proposed on site uses within the RPZs and safety zone include

Land Use County of Orange EIR No 573 151
151 Page 152 153

I

restricted open space the Marshbum Retarding Basin agriculture parking a vehicle maintenance yard and a food distribution warehouse These uses are consistent with the
limitations associated with the safety zone because there are few employees and low concentrations of people at any one time on the site A portion of the DSZ extends over offsite
land that is currently agriculture and classified for Upen Space in the County General Plan The restrictions associated with the safety zones are generally consistent with the uses

permitted in the Open Space land use category
The RPZs and DSZ for the east end of Runway 7 25 are within the MCAS El Toro site over planned restricted open space golf course park wildlife habitat area and the federal Habitat
Reserve in Planning Area 6
The approach safety zones for the south end of Runway 16 34 extend over PA 7 The proposed on site uses were selected specifically for their consistency with the safety zones
and include restricted open space agriculture golf wildlife habitat area and business park Design guidelines have been prepared for the business park parcels consistent with the
safety zone land use restrictions Business Park Design Guidelines August 1999 prepared for the MCAS El Toro Master Development Program by The Planning Center These
restrictions include limiting concentrations of people to no more than 60 persons per gross acre in the IASZ and no more than 100 persons per gross acre in the OASZ and prohibiting
the location of sensitive public assembly type uses including schools places of worship and hospitals in these areas The Design Guidelines also include a provision that interior
noise levels must meet County of Orange noise requirements for the permitted uses There are no off site areas affected by the south end of Runway 16 34 approach safety zones with
the exception of small areas of the approach safety zones in railroad and freeway rights ofway

The RPZs and safety zones are part of the Proposed Project description including an amendment to the County of Orange General Plan Safety Element It is recommended that
use restrictions associated with the safety zones be included in the Airport Environs Land Use Plan AELUP as addressed in Section 4.2 The restrictions are described in the
Business Park Design Guidelines and in Section 4.15 Public Safety
In conclusion the land use restrictions associated with the implementation of the safety zones do not physically divide an established community since there is no established
community on site at MCAS El Toro nor is there an established community where the safety zones extend off site The safety zones do not create land use incompatibilities
because the restrictions do not preclude development of proposed on site or planned off site uses and therefore do not represent a significant adverse impact

County

of Orange EIR No 573 Land Use 152
152 Page 153 154
4 I .6.9 Land Use and Design Impacts of Future Development in the Vicinity of the Proposed Project El Toro
Sexually Urien ted Businesses
NOP comments included concerns about the quality design maintenance and appearance of areas near a major airport and cited examples of seedy iand uses in close proximity to
other airports The presence of an airport in and of itself does not lead to a decline in design standards or land use regulations for a community The potential for off site development
that may result fkom the Proposed Project may be evaluated in terms of whether sufficient regulations and design controls are in place to ensure that future development in the vicinity
of the airport will be appropriately designed and landscaped and compatible with the existing surrounding communities

Uses developed in response to the reuse of MCAS El Toro as a commercial airport would be developed in and under the land use regulatory control of the surrounding jurisdictions
principally the County of Orange the City of Irvine and the City of Lake Forest Most airport related commercial development will occur under the permitting process of the local
municipality therefore the local City Councils Board of Supervisors and Planning Commissions will have the opportunity and responsibility to ensure that the area
surrounding the airport will be developed in a way that maintains existing land uses and the local quality of
life

Sexually oriented or dult businesses can be associated with blighting of areas and neighborhoods The County of Orange Zoning Code Sec 709 146 addresses potential
blighting impacts on surrounding neighborhoods and limits the concentration or clustering of adult entertainment businesses by applying distance requirements from areas zoned for
residential uses from other adult entertainment business and from existing churches parks or educational institutions utilized by minors

The City of Irvine Zoning Code Chapter 2 28 has 30 findings that the Planning Commission must make before approving a sexually oriented business The findings
include location in an industrial zone maintains distance requirements from residential zone and uses religious institutions public parks child care centers and schools and from
other sexually oriented businesses security cameras are provided in parking areas and the hours of operation are limited among other requirements The City of Lake Forest Zoning
Code Section 9.08.042 includes location standards where sexually oriented businesses must maintain a distance from residential zones and districts religious institutions

cemeteries and existing and planned parks and playgrounds A separation requirement between
sexually oriented businesses is included as well as design standards for the structures housing such uses

Sexually oriented businesses engage in First Amendment protected free speech therefore local agencies can regulate the secondary effects of such uses such as crime and physical
deterioration of a neighborhood but cannot regulate the use or speech itself These
zoning regulations do not prohibit adult uses but control their location and proliferation

Land Use County of Orange EIR No 573 153
153 Page 154 155
L4

The presence of an airport use will not afkct the implementation or enforcement of these established regulations
Spheres of ln fiuence lmpac ts
Although there are no existing residences within the Proposed Project 65 dB CNEL contour the adopted plans allow for some planned residential uses within the noise contour The

City of Irvine General Plan depicts residential land uses for an area in its sphere of influence that will be within the 60 dB CNEL and 65 dB CNEL noise contours under the Proposed
Project This unincorporated area also is designated as Residential on the County's General Plan Land Use Element There will be 481 acres of Suburban Residential north of El Tore
in the 2020 Proposed Project 65 dB CNEL contour Figure 5 4 Appendix C A majority of this area is enrolled in NCCP for purposes of retaining the existing coastal sage scrub
habitat Therefore there is little likelihood in the near future for development proposals for those areas designated residential However to ensure internal consistency a General Plan
Amendment is needed to redesignate the land use in the impacted area to a use category consistent with its location Within the 65 dB CNEL contour Mitigation Measure GPC 2
mitigates this impact to a level of insignificance
The City of Irvine General Plan designations for its PA 9 west of MCAS El Tore do not include any residential categories and for PA 6 and PA 2 north of MCAS El Toro in the
City's sphere of influence include the residential categories of Estate Density Residential and Low Density Residential Corresponding zoning to implement these categories in PAS 6
and 2 if the area were to be annexed into the City of Irvine has not yet been adopted and the areas are currently zoned Development Reserve The Development Reserve zone is
designed to allow temporary or transitional uses prior to establishing a planning areawide concept The current City of Irvine sphere of influence General Plan designation for
residential uses is not compatible with the Proposed Project where the residential uses would be within the 65 dB CNEL contour Mitigation Measures LU 6 and GPC 3 in the following
section address this conflict Land use noise compatibility is addressed in more detail in Section 4.4 Noise of this EIR

The applicable City of Orange Sphere of Influence Plan the East Orange General Plan EOGP allows residential uses in areas that would be within the 60 and 65 dB CNEL noise
contours under the Proposed Project The EOGP is subject to a development agreement that contains a December 1999 termination clause The EOGP's conflict with the CNEL
contours associated with the Proposed Project would be a sign ant impact if the plan were to remain in effect and the area were annexed into the City of Orange Since the area is
currently under the land use regulatory control of the County of Orange the EOGP does not represent a significant adverse impact with mitigation to amend the General Plan

Countyofhge EIRNo 573 Land Use 154
154 Page 155 156
Since the development of desirable or undesirable land uses in proximity to the airport is largely within the control of local jurisdictions the presence of a commercial airport at
MCAS El Toro does not create a significant impact on land use regulations

4.1.6.10 Impacts of the Proposed Project on General Plan and
Existing Land Uses Adjacent to JWA

Under the Proposed Project JWA will experience a reduction in the number of annual commercial passengers served corn 7.5 million in 1998 to 5.4 million in 2020 As a result
of this decrease in passengers no terminal area expansion will be necessary Limited JWA improvements under the Proposed Project will take place within the existing boundaries of
the airport and will include General Aviation site improvements for additional fixed base operator FBO space additional transient aircraft parking additional area devoted to
aircraft tiedowns relocation of a portion of Mantz Way and the construction of additional hangars These improvements will be initiated after Phase 1 passenger service begins at
OCX and are estimated to be completed in Phase 2
It is not anticipated that reductions in passenger levels at JWA will impact hotels and other
services such as restaurants surrounding JWA This is because these hotels and services are supported not only by JWA passenger activity but also by the large amount of

commercial and industrial deveIopment and by the population base in the surrounding area Further these hotels and other services will still be within a reasonable distance to
passengers using OCX and are centrally located to a variety of attractions and destinations in Orange County and thus will still capture a portion of demand generated by this activity
Given the significantly higher levels of passenger activity forecast to occur at UCX under the Proposed Project demand from these passengers combined with the demand from
passenger activity at JWA may in fact increase total demand for hotels and other services in the area surrounding JWA

Existing uses adjacent to JWA north of SR 73 are virtually all commercial or industrial uses including hotels and other airport serving commercial uses along MacArthur Boulevard
business park and commercial uses north northeast of the 405 Freeway and industrial uses between JWA and SR 55 Figure 4.1 5 A golf course and commercial uses are located
immediately south of SR 73 The on site JWA uses associated with the Proposed Project include the terminal complex along MacArthur Boulevard across brn the airport serving
hotel and restaurant uses off site General Aviation uses on site along Campus Boulevard across from commercial and business park uses and General Aviation airport maintenance
uses and the fuel farm along the western boundary of JWA adjacent to the industrial area off site The long term surface parking north of the 405 Freeway is nestled in an area
characterized by business park uses and the golf course south of SR 73 is and will remain a compatible use with the airport

The existing uses adjacent to JWA do not conflict with the operation of the airport nor are they adversely impacted by the noise and other operational characteristics of the airport In
many cases the existing off site uses near JWA either are attracted to the proximity of the airport or serve airport related functions The existing compatibility between JWA and the

Land Use County of Orange EIR No 573 155
155 Page 156 157
adjacent uses will not substantively change as a result of changes to GeneraI Aviation areas
under the Proposed Project

The policy of the Airport Land Use Commission for Orange County ALUC is to designate accident potential zones around civilian airports on the basis of an evaluation of each
airport's accident history and operational characteristics The ALUC has not adopted accident potential zones for JWA because none could be justified with the available data
Also essentially all off airport property affected is developed See Section 4.15 Public Safety for more information about safety zones

Clear zones are identified for all of the airfields in the County in the AELUP JWA clear zones include the long term parking area north of the 405 Freeway to the north of the
airfield and an existing golf course to the south The Proposed Project does not entail any changes to the existing clear zones Clear zones as referred to in the AELUP are equivalent
to the RPZs referred to in FAA Circular 150 5300 l 3 The immediate JWA environs are virtually built out in accordance with the plans and regulations of the cities of Irvine Costa
Mesa Newport Beach and Santa Ana and the County of Orange The existing and planned land uses are compatible with the airport use The proposed changes to JWA to reduce
commercial passenger service and increase General Aviation activities within the existing site boundaries will not affect the implementation or enforcement of existing land use
regulations that have proven effective
There are no agricultural lands that would be affected by the proposed changes at JWA
The Proposed Project at JWA will occur completely within the existing airport boundary and therefore will not result in the division of the physical arrangement of an existing
community as specified by Significance Threshold i The proposed improvements do not create a significant adverse impact with regard to future development as specified by
Significance Threshold ii

4.1.6.11 Impacts of the Proposed Project on Emergency Response and Evacuation Plans

Under the Proposed Project the County of Orange will assume responsibility for the MCAS El Toro site Part of this responsibility will entail revisions to existing emergency response
and evacuation plans to encompass the new land uses on the site Both the Orange County Emergency PIan and SEMS will be updated to reflect the changes in land ownership and
uses Individual tenants and leaseholders on site also will be responsible for implementing standard emergency response and evacuation policies that are consistent with the County
guidelines
Emergency staging features that were available under federal ownership of MCAS El Toro included warehouse facilities cold storage facilities stockpiles of food and the availability
of medical and military personnel The availability of these facilities was linked to the military use of the site The official activation of an emergency response activity at MCAS
El Toro under military jurisdiction required decision making at the federal Ievel

County of Orange EIR No 573 Land Use 156
156 Page 157 158
The commercial aviation reuse of the MCAS El Toro site will ensure the continued availability of the airfield for emergency and disaster response In addition the open areas
and facilities on site such as hangars and cargo buildings could function as emergency staging areas County ownership and operation of the site allows emergency response
decision making to occur at the local level
The Proposed Project will not result in significant adverse impacts related to emergency response and evacuation plans Final EIR No 563 concluded similarly that no significant
adverse impacts on emergency response or evacuation plans would result under the CRP

4.1.6.12 Summary of Analysis
Three Thresholds of Significance are identified for land use impacts in Section 4.1 S The
demolition of base housing will not result in the physical division of an established community as described in the first threshold In 1998 the housing units were planned to

be vacated as a result of the base closure and therefore the housing units do not form a community

The third threshold of significance concerns the project's effect on the implementation of an adopted emergency response plan The Orange County Emergency Plan and SEMS would
be updated to reflect the Proposed Project The Proposed Project will not interfere with the implementation of the emergency response plan and could accommodate an interim
emergency staging area prior to full build out County ownership of the El Toro site will allow decision making at the local level regarding use of the site for emergency response

The second land use threshold of significance addresses incompatibilities between the Proposed Project's land uses and adjacent existing and planned land uses The analysis in
this section considered adjacency conflicts between types of uses and operational characteristics proposed on site and the existing and planned per applicable General Plan
off site uses The analysis also addressed the impact of titure transportation improvements included in the Proposed Project the impact of the agriculture use included as part of the
Proposed Project the impact of the aviation safety zones on land use and other land use and design impacts

The Proposed Project will not have significant impacts on planned land uses along the perimeter of the project site because there are no adjacency conflicts between proposed onsite
uses along the perimeter and abutting planned per applicable General Plan off site uses Most of the project edge is characterized by like to like uses such as a proposed park
adjacent to planned open space or by less intense on site uses adjacent to more intense offsite uses as the on site golf course adjacent to off site warehouses

The Proposed Project land uses will not have significant impacts on existing land uses along the perimeter of the project site because there are no conflicts between types of uses and
operational characteristics proposed on site and abutting existing site uses However the proposed off site widening of Trabuco Road will result in a loss of agricultural uses

Land Use County of Orange EIR No 573
al 28 157
157 Page 158 159

adjacent to the roadway This impact is analyzed in Section 4.11 and Section 5.0 under agricultural resources
The Proposed Project will preserve 139 acres of agricultural uses witbin an increasingly urbanized area While there is a potential for the on site agriculture to have effects on
nearby developed uses such as increased dust and noise the effects do not create substantial land use incompatibilities and therefore are not significant The adjacent land uses have
co existed with the on site agriculture for several years The planned uses adjacent to the agriculture are not especially dust or noise sensitive Furthermore the levels of dust and
noise from the existing agricultural operation do not create substantial land use compatibilities A final factor in the significance determination is that existing rules and
regulations control the agricultural operations The agricultural management practices specified in Mitigation Measure LU 5 can be implemented through the terms of County
lease agreements as precautionary measures
The proposed approach and departure safety zones associated with the Proposed Project will result in restrictions on the density of buildings and permitted occupancy of the affected
sites The safety u nes are more fully defined in Section 4.15 Public Safety The DPZ for Runway Complex 16 34 affects an off site area north of MCAS El Toro Land use
restrictions resulting from the DPZ are a less than significant impact because affected offsite properties will retain reasonable development potential that is consistent with the
existing General Plan designations for those properties
JWA is located in an already urbanized area The development character of the business parks commercial and light industrial uses in the immediate vicinity is well established
Additional land use and design measures are not warranted for the future development of JWA

The Board of Supervisors adopted Resolution 99 301 on July 27 1999 directing the Planning and Development Services Department to develop protocols and procedures for
development applications within developing sphere of influence areas to implement the County's sphere of influence policy guidelines The Sphere of Inffuence Policy Guidelines
recognize that the County is the local agency with ultimate responsibility for review and approval of development projects in unincorporated territory whether or not they are located
in city spheres of influence The guidelines are intended to serve as a fiamework for cooperation among affected agencies and landowners One of the goals of the policy
guidelines is to define a collaborative process with respect to development standards for developing spheres of influence The Sphere of Influence Policy Guidelines reaffirm the
Interim Policy Guidelines for Annexations and Incorporations Oct 7 1997 which states the County will oppose annexation requests which impact regional facilities necessary for
core business functions e g landfills corrections facilities existing or proposed aviation facilities
The
City of Irvine General Plan designations for the on site southern panhandle are inconsistent with the Proposed Project uses The off site areas in the City of Irvine are a

mix of commercial and business park uses that will not be significantly affected by the

County of Change EIR No 573 Land Use 158
158 Page 159 160
Proposed Project The residential General Plan designations for the City of Irvine sphere of influence areas north of MCAS El Toro are inconsistent with the Proposed Project where
they fall within the 65 dB CNEL contour

41.7 Mitigation Measures
4.1 J 1 Final EfR No 563 Mitigation Measures
The findings for EIR No 563 included three land use mitigation measures concerning subsequent amendments to the Grange County General Plan and the need for surrounding
cities to consider adopting proposed mitigation These mitigation measures are as follows
LU I Subsequent to the adoption of the MCAS El Tore Community Reuse Plan and concurrent with the preparation of an airport master plan or other development plans
for the MCAS El Tore site the County of Orange shall prepare amendments to the Grange County General Plan for consideration by the Board of Supervisors to ensure
consistency between the adopted Community Reuse Plan and the Orange County General Plan These amendments would be subject to the discretion of the Board of
Supervisors Further the Board of Supervisors shall consider zone changes to allow the variety of uses under the Reuse Plan These zone changes will be considered at
subsequent stages of the planning process when appropriate such as at the Master Plan level

Relutionship to EIR No 573 General Plan amendments are proposed as part of the project No zune changes are requiredfor the Proposed Project due to the County's exemptkm from
its own zoning enacted after EIR No 563 Thus L U l is still applicable and will be implemented qmn approval of the Proposed ProjectThe

County of Orange does not have land use authority in adjacent jurisdictions therefore the County included Measures LU 2 and LU 3 for consideration by the
adjacent jurisdictions
LU 2 The County of Orange shall coordinate any General Plan Amendments when deemed necessary with adjacent jurisdictions and adjacent landowners The person
responsible for this coordination shall be the County of Orange Director of Planning and Development Services or his designee

LU 3 Surrounding cities should also consider specific impacts resulting from the proposed project and adopt proposed mitigation as feasible in accordance with their local
Iand use jurisdiction
Relationship to EIR No 573 Mitigation Measures LU 2 and LU 3 are within the responsibili andjurisdiction of another public agency and not the County of Orange See
CEQA Guideline Section 15091 a 2 Mifigatiun Measures LU 2 and L W 3 remain applicable to the Proposed Project

Land Use County of Orange EIR No 573 159
159 Page 160 161
4.1.7.2 Final EIR No 563 Supplemental Analysis

There were no land use mitigation measures in the Supplemental Analysis
4.1.7.3 Standard Conditions of Approval
There are no County of Orange Standard Conditions of Approval relative to land use that apply to the Proposed Project

4.1 J 4 Additional Precautionary Mitigation Measures
The Proposed Project provides a detailed description and analysis of ASMP components compared to the general description and analysis in previous EIR No 563 prepared for the
CRP project This more detailed analysis also provides more specific project mitigation measures Overall the land use effects of the Proposed Project are somewhat less than those
of the CRP as a result of the reduction in airport operations for the El Toro site and the enhancement of the recreation open space eIement of the nonaviation revenue support
component
As a result of the proposed widening of Trabuco Road fkom Sand Canyon to Terminal Way there will be a loss of adjacent agricultural lands Agricultural resource impacts and
mitigation are addressed in Section 4.11 Natural Resources and Energy
Land use effects of the Proposed Project do not exceed the thresholds of significance The Proposed Project perimeter uses at MCAS El Toro are generally less intense than the
existing or planned off site uses For example in Planning Areas 2 3 and 6 open space uses are sited along the perimeter In other areas the Proposed Project uses at the perimeter
are similar in type intensity and impacts to the off site uses e g a transportation center and rail maintenance on site in PA 4 adjacent to the Irvine Transportation Center and light
industrial uses off site The off site areas adjacent to JWA are virtually built out with uses compatible with that airport The following precautionary mitigation measures are
recommended for approval
LU 4 Prior to the execution of leases the County will review compatibility with adjacent and nearby uses and include requirements that minimize off site impacts These
additional requirements will include compliance with all hazardous waste disposal protocols the provision of a solid perimeter screen wall or fence hoods for light
fixtures to direct rays on site and other site improvements or measures determined to be necessary to protect nearby property owners and lessees

County of Orange EIR No 573 Land Use 160
160 Page 161 162
LU 5 Prior to execution of leases for agricultural uses the County will review compatibility with adjacent nearby uses and include the following requirements
where appropriate

a
a
l

l
l

Restricting the agriculture use to row crops Prohibiting livestock
Requiring low volume watering as applicable Containing runoff on site or directing it to adequately sized public storm sewers
Prohibiting aerial spraying of pesticides Requiring the application of integrated pest management practices
Requiring watering before and after any activities that disturb soil to reduce dust emissions
Conducting soil moisture monitoring Maintaining farm equipment in good operating condition
Requiring the use of mulch cover crops crop residue management surface roughening minimum tillage or other methods to control dust when the land is
fallow Requiring the use of gravel or other surface material on highly traveled farm
roads to reduce dust emissions and Restricting vehicle speeds and public access to unpaved farm roads

LU 6 The County will use its best efforts to ensure that nearby cities adopt and or maintain existing restrictions on undesirable land uses or developments

4.1.8 Level of Significance After Mitigation
The Proposed Project has no significant land use impacts at the MCAS El Toro and JWA sites that cannot be reduced to a level of insignificance if all mitigations are implemented

Pursuant to CEQA Guidelines Section 15091 a 2 land use Mitigation Measure LU 6 is within the responsibility and jurisdiction of another public agency and not the County of
Orange
The loss of prime farmland is addressed in Section 4.11 Natural Resources and Energy This loss is a significant impact that cannot be fully mitigated through the mitigation
measures identified in the Draft Supplemental Analysis to EIR No 563 and the mitigation measures specified in Section 4.11 of this document

Land Use County of Orange EIR No 573 161
161 Page 162 163

4.1.9 No Project No Activity Comparison
If the project is not built none of the land use impacts identified above will occur None of the benefits will occur either such as the establishment of open space areas including park
land golf and wildlife habitat areas on the EI Tore site Existing agricultural uses may or may not continue under this alternative depending upon a number of factors including
ownership No Project No Activity could result in the loss of all of the agricultural areas on site

The No Project No Activity Alternative would provide the same open space for emergency staging as that associated with existing conditions The absence of building maintenance
under the No Project No Activity Alternative would eventually render the warehouse and other facilities unusable for emergency staging The Proposed Project will provide the
continued availability of an airfield for emergency and disaster response as well as the availability of open areas and structures to serve as emergency staging areas The adverse
impacts of the No Project No Activity Alternative on emergency response would be greater than under the Proposed Project

County of Orange EIR No 573 Land Use 162
162 Page 163 164

4 .2 GENERAL PLAN CONSISTENCY
This section addresses the potential impacts of the Proposed Project on General Plan Consistency and consistency with other applicable land use plans policies or regulations of an agency with
jurisdiction over the project adopted for the purpose of avoiding or mitigating environmental effects Potential issues associated with land use are addressed in Section 4.1 Land Lose The
potential impacts of the Proposed Project addressed in this section were evaluated in detail in the Land Use Compatibility and General Plan Consistency Technical Report Appendix C to this
EIR and the Consistency with SCAG Policies Technical Report Appendix K to this EIR The findings of these technical reports are summarized in this section

The aviation and nonaviation uses under the Proposed Project are contained within the MCAS El Tore site and do not expose a new or substantially different geographic area to direct or indirect
General Plan Consistency impacts compared to that evaluated in EIR No 563 This section of this current EIR evaluates the Proposed Project as defined in detail earlier in Chapter 3.0

4.2.1 Summary of Conclusions in EIR No 563
EIR No 563 reviews the General Plan goals and policies for affected jurisdictions in Sections 4.1 Land Use and 4.2 General Plan Consistency Section 4.1 identifies the following impacts
related to the Orange County General Plan
The nonaviation uses in the CRP included conveyances for development of a Habitat Reserve commercial office uses residential recreation open space
research and development and light industry which were not consistent with the Public Facilities designation on the El Tore site
The CRP would require a zone change from the General Agricultural designation to several other zoning categories in order to accommodate the proposed uses on
site An amendment to the AELUP would be required to amend the Policy
Implementation Line adopted 65 dE3 CNEL change the Accident Potential Zones APZs to the appropriate inner and outer safety zones and amend
restrictions affecting navigable air space based on the appropriate application of FAR Part 77

The inconsistency of the CRP with the County of Orange General Plan was determined to be a significant adverse impact
Section 4.1 of EIR No 563 recognizes that the City of Irvine General Plan designation and zoning for the portion of the El Toro site in city limits were not consistent with the Proposed
Project The City of Irvine sphere of influence designation of Military for the portion of the base in unincorporated Orange County was also not consistent with the proposed reuse
alternative The City of Irvine zoning inconsistencies were not viewed as relevant because the EIR anticipated that the site would be conveyed to the Local Redevelopment Authority LRA
the Orange County Board of Supervisors and therefore would not be subject to the City of
Irvine land use regulations The effects of the project on the City of Irvine MPAH and Bikeway

County of Orange EIR No 573
U 1 General Plan Consistency 163
163 Page 164 165
Plan in the City's Circulation Element were found to be significant because both assume restricted access through the El Toro site reflecting its previous military status Section 4.1 of
EIR No 563 found that there were no sign cant adverse land use impacts on the Cities of Lake
Forest Mission Viejo and Laguna Hills

Section 4.2 of EIR No 563 addresses inconsistencies between the CRP and the policies contained within all nine elements of the County of Orange General Plan with the exception of
the Growth Management Element These consistency issues are summarized in Table 4.2 l
In addition changes would be required to the Airport Environs Land Use Plan AELUP adopted and administered by the Airport Land Use Commission for Orange County

42.1 l Significant Effects that Cannot be Mitigated to a Level of
Insignificance

There were no significant Land Use General Plan Consistency effects in EIR No 563 within the unincorporated County that could not be mitigated to a level of insignificance

4 2 1 .2 Effects Determined to be Mitigated to 8elow a Level of
Significance

EIR No 563 found that significant adverse land use impacts would apply to the General Plan Public Facilities designation the Zoning Code General Agricultural designation the planned
residential use within the 65 decibel Community Noise Equivalent Level 65 dB CNEL contour in the area north of the Policy Implementation Line in the vicinity of Rattlesnake Reservoir and
some of the policies text exhibits and tables in the General Plan The significant effects were to be mitigated to below a level of significance with the adoption of mitigation measures

4.2.2 Final EIR No 563 Supplemental Analysis
A Final EIR No 563 Supplemental Analysis SA was prepared in response to a Superior Court ruling that portions of Final EIR No 563 were inadequate or incomplete under CEQA The SA
was not required to address General Plan Consistency

4.2.3 Environmental Setting Existing Conditions
The existing policy setting as applied to the Proposed Project is essentially the same as in EIR No 563 since there have been no major amendments to the applicable plans me policy setting
includes General Plans and airport specific policies adopted at the local level Since the certification of EIR No 563 there have been no changes to the Orange County General Plan as it
affects the Proposed Project There is a technical update to the Orange County General Plan currently underway The proposed changes are intended to reformat and streamline the Plan to
provide greater consistency among the elements and to make them more user friendly

General Plan Consistency County of Orange EIR No 573 164
164 Page 165 166

Table 4.2 l Summary Orange County General Plan Consistency Topics
Identified in EIR No 563
I i

Gene Plm Ejexueut Cutit z s in ErRNo 2 L a n d U s e PF 2 the El Toro site Nonaviation uses are not consistent

Designated Public with policy and land use map Facilities
Land Use Map Land use planning inconsistency for area previously not in the 65 dB
CNEL contour that would be in the high noise area under the CRP
project Trunspu ut n Circulation Plan Circulation Plan inconsistent with
EleR te it p TE 1 23 Arterial roads that are part of the CRP Project
Bikeway Plan p TE 2 9 Bike lanes associated with the arterial streets that are part of the
CRP not consistent with Bikeway Plan
No e Element Text maps tables References to the military facility objectives policies and and associated terminology e g
definitions AICUZ inconsistent with civilian reuse
JWA noise impacts change under CRP
Noise contour maps change under CRP

Sufety Eieme f
Resources Element Recreutiun Eiement
Huusrirg Elemerrt

Public Services and Fuciiities Element

Text and Map
Text and Map Text
Text

Text and Map

Surface noise impacts would be altered by the CRP
The conversion of El Toro from military to civilian and the changes
at JWA would be inconsistent with text and map
NCCP lands not reflected Modified flight paths over park
facilities not reflected in text Housing needs previously based on
Tustin and El Toro sites in military use would change under civilian
reuse Changes at JWA new ETC not
reflected in text or on map

County of Orange EIR No 573 Gened PIan Consistency 165
165 Page 166 167
The General Plan will also include an update of the socioeconomic data and a reformat of the Land Use Element Map General Plan land use designations will not change as a result of this
technical update except the addition of an Open Space Reserve designation
There have been several changes to the General Plans of other jurisdictions The Leisure World community in unincorporated Orange County has since incorporated as the City of Laguna
Woods although a new General Plan has yet to be adopted The City of Lake Forest annexed additional land in the vicinity of the eastern boundary of MCAS El Toro The new City of
Ranch0 Santa Margarita will be incorporated as of January 1,200O The City of Irvine amended its General Plan to provide for a mix of urban sports entertainment and retail land uses for the
portion of the El Toro site PA7 in the city limits see Section 4.1.6.3 The Irvine City Council considered but has not adopted a subsequent General Plan Amendment to revise the plan for this
portion of the site consistent with the ETRPA Nonaviation Alternative Overall these changes have little effect on the impact analysis of General Plan Consistency The City of Irvine General
Plan designation was inconsistent with the proposed CRP as reviewed in EIR No 563 and even though the General Plan designation has changed it remains inconsistent with the Proposed
Project as evaluated in this EIR A General Plan Consistency analysis cannot be performed for Laguna Woods until that City has adopted its first General Plan The Ranch0 Santa Margarita
area is included in the General Plan Consistency analysis for the unincorporated area
Several changes have also been made to the project description between EIR No 563 and EIR No 573 including a change in the nonaviation uses from primarily business and light industrial
uses to a nonaviation revenue support component dominated by open space and recreation uses in EIR No 573 The nonaviation component of the CRP project was determined to be
inconsistent with the Public Facilities designation in EIR No 563
Several adopted plans and policy documents are applicable to the Proposed Project as follows

4.2.3.1 Southern California Association of Governments SCAG
The 1995 Regional Comprehensive Plan and Guide RCP G was adopted by SCAG to serve as a framework for decision making in the region particularly in regard to growth and other
anticipated changes during the next 20 years The RCP G also provides an overview of the plans of various regional agencies and summarizes the region's efforts to meet certain federal
and State requirements
The project's consistency with the SCAG Regional Comprehensive Plan and Guide policies is addressed in Appendix K

4.2.3.2 Land Use Compatibility Program LUCP
In 1984 the County of Orange prepared the Land Use Compatibility Program LUCP for portions of unincorporated Santa Ana Heights and certain neighborhoods within the City of
Newport Beach that experience noise levels associated with JWA normally not compatible with the residential uses found there The purpose of the Land Use Compatibility Program was to
establish a program to achieve land use compatibility between projected noise levels at JWA and

General Pian Consistency County of Orange EIR No 573 166
166 Page 167 168

land uses in all affected areas and to develop a long range plan for the unincorporated Santa Ana Heights area
In February 1985 the Board of Supervisors adopted the John Wayne Airport Master Plan AMP and the Santa Ana Heights LUCP In adopting the LUCP a projected 65 dB CNEL noise
contour reflecting expected future flight levels and a reasonable mix of aircraft types was utilized This contour was approved by the Board of Supervisors as the Policy Implementation
Line PIL for noise compatibility programs

4.2.3.3 Santa Ana Heights Specific Plan
The Santa Ana Heights Specific Plan adopted in 1986 provides land use regulations specific to the Santa Ana Heights community an approximately 450 acre area of unincorporated territory
located just south of John Wayne Airport The Specific Plan was an outgrowth of the 1985 decisions by the Board of Supervisors to adopt a master plan for the airport and the LUCP for the
Santa Ana Heights area The objectives of the plan are to encourage improvements to existing residential neighborhoods and business developments while promoting well planned business
park and commercial projects
The zoning in several areas was converted from a variety of zones to Professional Administrative to accommodate development of business park office complexes and to
Community Commercial to encourage the development of commercial centers Design Guidelines were prepared to ensure compatibility between the residential and the business park
uses such as promoting the assembly of parcels the use of architecturally attractive materials and neutral colors and height limitations

4 .2 .3 .4 Airport Environs Land Use Plan AELUP

The Airport Environs Land Use Plan AELUP is the comprehensive land use plan adopted and administered by the Airport Land Use Commission ALUC for Orange County as required by
Section 21675 of the Public Utilities Code The AELUP establishes land use guidelines based upon noise and safety impacts for areas near airports For review purposes applicable laud use
guidelines policies and regulations are related to the 60 dB CNEL contours established for JWA and MCAS El Toro activities Noise sensitive land uses defined in terms of use type and
intensity are generally discouraged or not permitted within the 65 dB CNEL contour For example the County of Grange General Plan Noise Element defines noise sensitive land uses as
follows
Noise sensitive land uses are defined as those speciJic land uses which have associated indoor and or outdoor human activities that may be subject to stress andbr signl cunt
interference porn noise produced by community sound sources Such human activity typically occurs daily for continuous per uf 24 hours or is uf such a nature that noise
is sign cantly disruptive to activities that occur for shorter perk SpeciJicully noise sensitive land uses include residences
of all types hospitals rest homes convalescent huspitals places of worship and schools

County of Orange ER No 573 u 5 General Plan Consistency 167
167 Page 168 169
General Plans prepared by other agencies that may have portions of their communities within the 60 dI3 CNEL contours must be consistent with the AELUP
4.2.3.5 Air Installations Compatible Use Zones AICUZ
The Air Installations Compatible Use Zones AICUZ were established by the Department of Defense DOD to protect the community while encouraging mission capability of air
installations Hence an AICUZ study was prepared for the El Toro site in 1981 The AICUZ identifies compatibility designations for areas surrounding airfields based on three criteria
Airport Imaginary Surfaces Accident Patterns Analysis and Noise Analysis
Airport Imaginary Surfaces are controls for heights of buildings towers antennae etc in the areas surrounding the air station so that flight elevations do not have to be raised or flight
patterns relocated The accident patterns analysis was used in conjunction with Navy guidelines to identify Accident Potential Zones APZs Land uses within the APZs are generally limited to
those with low occupancy and minimal or no buildings
The final step required in defining the AICUZ was the identification of the 65 dB CNEL boundary around the air station Community Noise EquivaIent Level CNEL noise contours
were developed as part of the AICUZ study they show the noise exposure in terms of CNEL for areas surrounding the MCAS El Toro site based on 72,000 annual military jet aircraft
operations These noise contours were adopted by the Orange County Board of Supervisors as part of the Noise Element of the County's General Plan in order to ensure a consistent and
equitable approach for noise and land use determinations in the environs of MCAS El Toro City and County standards condition or restrict the development of residential and other noise
sensitive land uses within the 60 and 65 dB CNEL noise contour and require that commercial buildings and other permitted noise sensitive land uses within the 65 dB CNEL noise contour
limit interior noise levels Approximately 18,380 acres of land are within the adopted AICUZ 65 dB CNEL contour or Policy Implementation Line PIL for MCAS El Tore With
approximately 4,700 acres on the MCAS El Toro site itself approximately 13,680 acres of noise restricted land are in the surrounding area

4.2.3.6 County of Orange General Plan
There are nine adopted elements to the County of Orange General Plan Land Use Transportation Noise Resources Safety Housing Recreation Growth Management and Public
Services and Facilities The application of the Land Use Noise Public Services and Facilities and Safety Elements to the Proposed Project is described in more detil below Applicable
Recreation Element and Resources Element policies are discussed in Section 4.1.4 Recreation
References to MCAS El Toro and JWA are included in most of the General Plan elements Generally speaking the elements have not been updated The Measure A initiative amendment
of the General Plan added policies to support commercial aviation reuse of the site
The County of Orange General Plan is currently undergoing a revision The changes represent a technical update to provide greater mnsistency among the elements and to adjust the format

General Plan Consistency County of Orange EIR No 573 168
168 Page 169 170

where needed to make the elements more user friendly This amendment may change the numbering of goals objectives and policies but will not change the substance of policies either
in general or as they relate to the Proposed Project The update proposes a new Open Space subcategory titled Open Space Reserve for areas intended to remain as open space for the long term

Land Use Element
MCAS El Toro has long served as a military airport and therefore it was designated in the County of Orange General Plan as a Public Facility Figure 4.2 l The County of Orange
General Plan now additionally designates a large portion of the MCAS El Toro site as the El Toro Airport Planning Area ETAPA for a future commercial airport consistent with Measure
A as approved by Orange County voters in 1994
Planning Area 5 the northeastern panhandle is designated Open Space in the County Land Use Element The existing Marshburn Retarding Basin and agriculture uses are consistent with this
designation The proposed public facility uses and parking area are not consistent with the Open Space designation With the exception of the federal agency to federal agency transfer of the
Habitat Reserve in PA 6 ownership of the MCAS EI Tore site is proposed to be transferred to the County The General Plan designation for JWA is Public Facilities except for the County
owned portion of the golf course south of the airport which is designated Open Space

Noise Element

As one of the mandated elements of the County of Orange General Plan the Noise Element is designed to provide guidance to decision makers in the area of noise sensitive land uses
Typically Noise Element policies are raised during the review of proposed development projects For example the Noise Element states the following

AU new residential uses schools places of worship and convalescent hospitals are generally incompatible within the 65decibel CNEL policy implementation line as defined
for MCAS El Tore and within the 65 decibel CNEL contour for any other airport or air station or for any other suurces of noise

The existing adopted Policy Implementation Line is also referred to as the PIL Further the following Noise Element policies are applicable to the Proposed Project
5 I To utilize the criteria of acceptable noise levels for various wpes of land uses as
depicted on Tables 4 I and 4.2 in the review of development proposals pp N 4 2
N 4 3

5.2 To prohibit new residential Iand uses within the 65decibel CNEL contour porn any airport or air station M'CAS El Turo will be closed on or before July I
1999 and the Board of Supervisors Las the El Tore Local Redevelopment Authority has prepared a Community Reuse Plan including commercial aviation

uses

County of Orange EIR No 573 4 7 Genera1 PIan Consistency 169
169 Page 170 171
5.3 To limit new non residential noise sensitive land uses that are within a 65 decibel
CNEL XL areaJLom any source Noise sensitive land uses will be permitted and only 1 appropriate mitigation meusures are included such that the standards

contained in this Element and in appropriate Stute and Federal Codes are met Spec cally non residential noise sensitive land uses include hospituls pluces of
worship and schools
In addition to the PIL the County of Orange Noise Element establishes a Noise Referral Zone NIX The exterior boundary of the NRZ is defmed by the 60 dB CNEL contour The purpose
of the NRZ is to bring attention to development projects that are being proposed in areas potentially affected adversely by noise levels Development projects proposed in the NRZ are
required to prepare an acoustical analysis report unless proven to be located outside of a CNEL of 60 decibels or less
It should be noted that municipal jurisdictions within the JWA and El Toro study areas do not prohibit uses based upon the 60 dB CNEL contour Additional

information on existing land uses and General Plan designations within the 65 dB CNEL contours can be found in Chapter 5 of the Land Use Compatibility and General Pian Consistency
Technical Report Appendix C

Public Services and Facilities Element
This element of the General Plan contains the County policies on the planning and provision of public services and facilities that are necessary for orderly growth and development
Sections of this element address goals objectives and policies including a policy relating to the reuse of

MCAS El Toro and air transportation and air travel at JWA
Those services and facilities that facilitate land development including sheriff fire water wastewater flood control and transportation systems are discussed and goals objectives and
policies for each area are set forth An amendment to the Public Services and Facilities Element to add the project's EIR objectives is proposed as part of the project

Safety Element
The Safety Element contains County policies on identified and potential hazards and safety considerations their mitigation and implications for development The Safety Element is the
primary document for identifying hazards that must be considered in the physical development of a jurisdiction

The Proposed Project includes defmed runway protection inner approach outer approach and departure safety zones as reviewed in Section 4.1 Land Use and 4.15 Public Health and Safety
The existing aircraft safety zones for the MCAS El Toro site were Clear Zones and Accident Potential Zones APZs developed through an Air Installation Compatible Use Zone AICUZ
study associated with the military use The AICUZ safety areas are currently reflected in the County of Orange Safety Element A Safety Element amendment is required to substitute the
safety zones and related descriptive text for the Proposed Project and their related development implications