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Public Notice: ​​Rocky Mountain Arsenal (RMA) Conducting Sixth Five-Year Review

​​Rocky Mountain Arsenal (RMA) Conducting Sixth Five-Year Review
How to Comment
Comments Due
May 1, 2026

​Please submit comments and questions to: Kelli Schneider  
Rocky Mountain Arsenal  
7270 Kingston Pkwy, Building 129,  
Commerce City, CO 80022  

​Phone: 303-289-0200  

​E-mail: kelli.n.schneider.ctr@army.mil  

Publish Date
August 5, 2025

Summary

​The U.S. Army is starting its Five-Year Review (FYR) process for the Rocky Mountain Arsenal (RMA) environmental cleanup. This process includes a statutory, policy, and technical review of RMA’s 1995 Off-Post and 1996 On-Post Records of Decision (ROD). The RODs provide detailed descriptions of the cleanup approach implemented for the site. ​

The purpose of the FYR is to determine whether RMA’s cleanup approach continues to be protective of public health and the environment. A critical part of the FYR is to update any changes to standards and determine if the remedy outlined in the RODs and subsequent ROD change documents remains protective in light of these new standards. This is the sixth FYR document to be prepared for RMA. ​

FYRs at RMA will be required for the foreseeable future, since the cleanup approach included on-site landfills and consolidation areas that hold contaminated waste from RMA’s cleanup. The Army manages and monitors these areas, which total approximately 1,000 acres. In keeping with its commitment to public involvement, the Army is seeking public input during this process. Community members are encouraged to submit, in writing, any concerns or issues they would like to see addressed during the FYR. Once the FYR is complete, a draft document summarizing the findings will be made available for public review. All public comments received during this process will be reviewed and considered in the final report.

Learn more about Rocky Mountain Arsenal RMA Superfund site on the EPA website.

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Last updated on August 6, 2025
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