Subject: Applicable or Relevant and Appropriate Requirements (ARARs)

MEMORANDUM FOR ASSISTANT SECRETARY OF THE ARMY: Investigating Per- and Polyfluoroalkyl Substances within the Department of Defense Cleanup Program

The Department of Defense (DoD) conducts cleanup under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and the Defense Environmental Restoration Program (DERP). Their goal is protection of human health and the environment in a risk-based, fiscally sound manner. This memorandum provides clarifying technical guidance on the investigation of per- and polyfluoroalkyl substances (PFAS) based on updated U.S. Environmental Protection Agency (EPA) information. This guidance is applicable to investigating these chemicals at Environmental Restoration Account-funded, Base Realignment and Closure Account-funded, and federal Air and Army Guard Operation and Maintenance account-funded sites.

Prioritization of Department of Defense Cleanup Actions to Implement the Federal Drinking Water Standards for Per- and Polyfluoroalkyl Substances

DoD Releases PFAS Cleanup Guidance:   The issuance of DoD’s memorandum, “Prioritization of Department of Defense Cleanup Actions to Implement the Federal Drinking Water Standards for Per- and Polyfluoroalkyl Substances Under the Defense Environmental Restoration Program,” describes DoD’s plans to incorporate the standards in EPA’s drinking water rule into DoD’s ongoing PFAS cleanups and prioritize actions to address private drinking water wells with the highest levels of PFAS from DoD activities.   https://www.acq.osd.mil/eie/eer/ecc/pfas/docs/policies/epa-mcl-implementation-memo.pdf