Draft Environmental Assessment Marana Regional Sports Complex Town of Marana Pima County, Arizona U.S. Department of the Interior Bureau of Reclamation Phoenix Area Office August 2008 DRAFT ENVIRONMENTAL ASSESSMENT MARANA REGIONAL SPORTS COMPLEX Prepared for Bureau of Reclamation 6150 West Thunderbird Road Glendale, Arizona 85306 Attn: John McGlothlen (623) 773-6256 on behalf of Town of Marana 11555 West Civic Center Drive, Building A2 Marana, Arizona 85653 Attn: Corby Lust Prepared by SWCA Environmental Consultants 2120 North Central Avenue, Suite 130 Phoenix, Arizona 85004 www.swca.com (602) 274-3831 SWCA Project No. 12313 i CONTENTS 1. PURPOSE AND NEED........................................................................................................................ 1 1.1 Introduction .................................................................................................................................. 1 1.2 Purpose of and Need for the Project .............................................................................................1 1.3 Location........................................................................................................................................ 1 1.4 Public Involvement/Scoping Process ........................................................................................... 1 1.5 Conformance with Comprehensive Plans and Zoning ................................................................. 2 2. DESCRIPTION OF ALTERNATIVES ............................................................................................. 6 2.1 No Action ..................................................................................................................................... 6 2.2 Proposed Action ........................................................................................................................... 6 2.3 Alternatives Considered but Eliminated from Further Study ....................................................... 6 3. AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES......................... 8 3.1 General Setting ............................................................................................................................. 8 3.2 Air Quality.................................................................................................................................... 8 Affected Environment .................................................................................................................. 8 Environmental Consequences....................................................................................................... 9 No Action................................................................................................................................ 9 Proposed Action...................................................................................................................... 9 Cumulative Effects ....................................................................................................................... 9 3.3 Land Use and Soils....................................................................................................................... 9 Affected Environment .................................................................................................................. 9 Environmental Consequences..................................................................................................... 10 No Action.............................................................................................................................. 10 Proposed Action.................................................................................................................... 10 Cumulative Effects ..................................................................................................................... 10 3.4 Water Resources......................................................................................................................... 10 Affected Environment ................................................................................................................ 10 Surface Water........................................................................................................................ 10 Sole-Source Aquifer.............................................................................................................. 11 Floodplain and Storm Water ................................................................................................. 11 Environmental Consequences..................................................................................................... 11 No Action.............................................................................................................................. 11 Proposed Action.................................................................................................................... 11 Cumulative Effects ..................................................................................................................... 12 3.5 Biological Resources .................................................................................................................. 12 Affected Environment ................................................................................................................ 12 Vegetation ............................................................................................................................. 12 Wildlife ................................................................................................................................. 12 Threatened and Endangered Species..................................................................................... 12 Species of Concern................................................................................................................ 15 Environmental Consequences..................................................................................................... 17 No Action.............................................................................................................................. 17 Proposed Action.................................................................................................................... 17 Cumulative Impacts.................................................................................................................... 18 3.6 Cultural Resources...................................................................................................................... 18 Draft Environmental Assessment for the Marana Regional Sports Complex ii Affected Environment ................................................................................................................ 18 Cultural History..................................................................................................................... 18 Environmental Consequences..................................................................................................... 22 No Action.............................................................................................................................. 22 Proposed Action.................................................................................................................... 22 Cumulative Effects ..................................................................................................................... 23 3.7 Socioeconomics.......................................................................................................................... 23 Affected Environment ................................................................................................................ 23 Demographics ....................................................................................................................... 23 Employment and Income Patterns......................................................................................... 23 Environmental Consequences..................................................................................................... 24 No Action.............................................................................................................................. 24 Proposed Action.................................................................................................................... 24 Cumulative Effects ..................................................................................................................... 24 3.8 Health, Safety, and Noise ........................................................................................................... 25 Affected Environment ................................................................................................................ 25 Health .................................................................................................................................... 25 Toxic or Hazardous Substances ............................................................................................ 25 Airport Safety Zones............................................................................................................. 25 Public Safety—Police ........................................................................................................... 25 Public Safety—Fire............................................................................................................... 25 Water Safety.........................................................................................................................