Official websites use .mil
Secure .mil websites use HTTPS
The Environmental Department provides technical and engineering support and services to MCAS Yuma including Organic and Tenant Units. We are dedicated to environmental improvements that foster a sustainable future for Marine Corps and our War Fighters’ Environmental excellence is part of the ethic for Yuma operations. Initiative, innovation, and commitment to proper environmental stewardship are the main paradigms for the Environmental Department.
The Department of the Navy is updating its Community Involvement Plan for MCAS Yuma and would like to better understand community interests and concerns about its environmental cleanup at the installation. To provide your advice about the best methods for the Navy to share information with people who live and work on and around the installation, please click here to take the survey. https://www.research.net/r/MCASYuma2022web
Area code and prefix for all numbers is 928-269-XXXX.
Environmental Director 2282
Environmental Administration 3201
CETEP 5207
NEPA 5581
Environmental Engineer/IRP 5215
Range Compliance and Inspection Director 2936
Environmental Protection Assistant/Support 6600
Hazardous Waste Program 2809
Pollution Prevention/Solid Waste Program 5136
Recycling Program 2936
Regulatory Compliance and Permits Director 3161
Lead & Asbestos Program 6090
Safe Drinking Water Program 3460
Storm Water Program 3114
Spill Response & A/U Storage Tanks 3114
Air Quality Program 6669
Environmental Management System Program 3116
(Click here to view policy)
To view the 2023 Consumer Confidence Report (Click here).
To view the 2024 Consumer Confidence Report (Click here)
To view the 2024 (City of Yuma) Consumer Confidence Report (Click here)
To view the 2025 (City of Yuma) Consumer Confidence Report (Click Here)
To view the 2025 Consumer Confidence Report (Click Here)
To view the Main Base Yuma Drinking Water Public Notification for PFAS (click here)
To view the Cannon Air Defense Complex Drinking Water Public Notification for PFAS (click here)
TIER 3 PUBLIC NOTICE - MCAS Yuma Public Water System #14082 (7 May 2026) - (click HERE)
TIER 3 PUBLIC NOTICE - Cannon Complex Public Water System #14083 (7 May 2026) - (click HERE)
TIER 2 PUBLIC NOTICE - Cannon Complex Public Water System #14082 (6 June 2026) - (click HERE)
PUBLIC NOTICE OF AVAILABILITY
MARINE CORPS AIR STATION YUMA YUMA, ARIZONA
PROPOSED TIME-CRITICAL REMOVAL ACTION AT MUNITIONS RESPONSE PROGRAM SITE 1A AND
CERCLA AREA OF CONCERN (CAOC) 10 November 2025
The United States Department of the Navy (Navy) announces the public availability of the Action Memorandum to implement a Time-Critical Removal Action (TCRA) within an area of Munitions Response Program (MRP) Site 1a and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Area of Concern (CAOC) 10, located at Marine Corps Air Station (MCAS) Yuma, in Yuma, Arizona. This removal action will involve digging up and safely transporting soil with lead and polycyclic aromatic hydrocarbons (PAHs) above cleanup levels to an approved off-site disposal facility. The Action Memorandum was prepared in coordination with the Arizona Department of Environmental Quality (ADEQ) and the U.S. Environmental Protection Agency (EPA).
The 11.43-acre cleanup area is located in the southeastern part of MCAS Yuma, south of the installation’s main buildings. This area was once used as the Moving Base Range, where aerial gunners trained by firing at moving targets from moving vehicles. Past investigations found lead and five PAHs—benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, dibenzo[a,h] anthracene, and indeno(1,2,3-cd)pyrene—at levels that could pose human health risks.
The Navy will carry out this removal action to ensure that soil left behind is safe. After contaminated soil is removed, samples will be collected to confirm cleanup goals are met and to determine whether the site is safe for unlimited use and unrestricted exposure. Because part of the area may be developed in the future for residential and recreational use, meeting these cleanup goals is especially important.
FOR MORE INFORMATION
The Action Memorandum documenting the Navy’s planned TCRA is available for public review at the locations listed below. The Navy will accept public comments during a 30-day period from November 10, 2025 through December 10, 2025. Comments can be submitted to the NAVFAC Southwest Public Affairs Office at usn.san-diego-ca.navfacswsanca.mbx.navfac-sw-pao-mailbox@us.navy.mil or mailed to: Public Affairs Office, 750 Pacific Highway, San Diego, CA 92132. Written comments must be postmarked no later than December 10, 2025. Verbal comments may be submitted at: (619) 909-8746.
Yuma County Main Library (Information Desk)
2951 South 21st Drive
Yuma, AZ 85364
(928) 782-1871
Download a PDF of the Action Memorandum using the link below:
Final Action Memorandum Time-Critical Removal Action at MRP Site 1a and CAOC 10