UNCLASSIFIED (U) AIR FORCE SPECIAL OPERATIONS COMMAND (U) Hurlburt Field, Florida (U) ENVIRONMENTAL REVIEW (U) FOR THE (U) CV-22 BEDDOWN AT YOKOTA AIR BASE 24 Feb 15 UNCLASSIFIED UNCLASSIFIED This page is intentionally blank. UNCLASSIFIED UNCLASSIFIED (U) TABLE OF CONTENTS Page (U) List of Tables ........................................................................................................................................................ iv (U) List of Figures ....................................................................................................................................................... iv (U) List of Acronyms, Abbreviations, and Symbols ..................................................................................................... v (U) 1. PURPOSE OF AND NEED FOR ACTION .............................................................................................1-1 (U) 1.1 Introduction ..................................................................................................................................1-1 (U) 1.2 Overview of the SOCOM Mission ...............................................................................................1-1 (U) 1.3 Scope of the Environmental Review ............................................................................................1-5 (U) 1.3.1 Issues Eliminated from the Environmental Review ......................................................1-5 (U) 1.3.2 Issues Carried Forward in the Environmental Review ..................................................1-6 (U) 2. DESCRIPTION OF PROPOSED ACTION AND ALTERNATIVES .....................................................2-1 (U) 2.1 Proposed Action ...........................................................................................................................2-1 (U) 2.1.1 Facilities Use and Construction ....................................................................................2-1 (U) 2.1.2 Aircraft Beddown and Associated Personnel Increase .................................................2-5 (U) 2.2 Alternative 1: Squadron Operations in Building 79......................................................................2-5 (U) 2.3 No Action Alternative ..................................................................................................................2-8 (U) 2.4 Comparison of Alternatives ..........................................................................................................2-8 (U) 3. AFFECTED ENVIRONMENT .................................................................................................................3-1 (U) 3.1 Airspace ........................................................................................................................................3-1 (U) 3.1.1 Definition of the Resource ............................................................................................3-1 (U) 3.1.2 Existing Conditions .......................................................................................................3-3 (U) 3.2 Noise .............................................................................................................................................3-7 (U) 3.2.1 Definition of the Resource ............................................................................................3-7 (U) 3.2.2 Existing Conditions .....................................................................................................3-10 (U) 3.3 Air Quality ..................................................................................................................................3-12 (U) 3.3.1 Definition of the Resource ..........................................................................................3-12 (U) 3.3.2 Existing Conditions .....................................................................................................3-13 (U) 3.4 Safety ..........................................................................................................................................3-13 (U) 3.4.1 Definition of the Resource ..........................................................................................3-13 (U) 3.4.2 Mishap and Event Classifications ...............................................................................3-14 (U) 3.4.3 Existing Conditions .....................................................................................................3-15 (U) 3.5 Utilities .......................................................................................................................................3-21 (U) 3.5.1 Definition of the Resource ..........................................................................................3-21 (U) 3.5.2 Existing Conditions .....................................................................................................3-21 (U) 3.6 Hazardous Materials/Waste and Solid Waste .............................................................................3-23 (U) 3.6.1 Definition of the Resource ..........................................................................................3-23 (U) 3.6.2 Policies and Regulations .............................................................................................3-24 (U) 3.6.3 Existing Conditions .....................................................................................................3-26 (U) 3.7 Water Resources .........................................................................................................................3-31 (U) 3.7.1 Definition of the Resource ..........................................................................................3-31 (U) 3.7.2 Existing Conditions .....................................................................................................3-31 (U) 3.8 Biological Resources ..................................................................................................................3-33 (U) 3.8.1 Definition of the Resource ..........................................................................................3-33 (U) 3.8.2 Existing Conditions .....................................................................................................3-33 (U) 3.9 Cultural Resources ......................................................................................................................3-38 (U) 3.9.1 Definition of the Resource ..........................................................................................3-38 (U) 3.9.2 Existing Conditions .....................................................................................................3-38 (U) 3.10 Transportation .............................................................................................................................3-39 (U) 3.10.1 Definition of the Resource ..........................................................................................3-39 (U) Environmental Review for the Page i CV-22 Beddown at Yokota AB UNCLASSIFIED UNCLASSIFIED (U) 3.10.2 Existing Conditions .....................................................................................................3-40 (U) 4. ENVIRONMENTAL CONSEQUENCES ................................................................................................4-1 (U) 4.1 Airspace ........................................................................................................................................4-1 (U) 4.1.1 Proposed Action ............................................................................................................4-1 (U) 4.1.2 Alternative 1 .................................................................................................................4-1 (U) 4.1.3 No Action Alternative ...................................................................................................4-1 (U) 4.2 Noise .............................................................................................................................................4-2 (U) 4.2.1 Proposed Action ............................................................................................................4-2 (U) 4.2.2 Alternative 1 .................................................................................................................4-7 (U) 4.2.3 No Action Alternative ...................................................................................................4-7 (U) 4.3 Air Quality ....................................................................................................................................4-7 (U) 4.3.1 Proposed Action ............................................................................................................4-7 (U) 4.3.2 Alternative 1 .................................................................................................................4-9 (U) 4.3.3 No Action Alternative .................................................................................................4-10 (U) 4.4 Safety ..........................................................................................................................................4-11 (U) 4.4.1 Proposed Action ..........................................................................................................4-11 (U) 4.4.2 Alternative 1 ...............................................................................................................4-12 (U) 4.4.3 No Action Alternative .................................................................................................4-12