Subject: Site Inspection

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.

1992 EPA SI Guidance

This guidance presents EPA’s site inspection (Sl) strategy. The strategy discusses procedural guidelines to investigate potential Superfund (CERCLA) sites for evaluation pursuant to the Hazard Ranking System (FIRS), revised in accordance with the Superfund Amendments and Reauthorization Act of 1986. The HRS is the primary means by which EPA evaluates sites for Superfund’s National Priorities List (NPL). This document provides guidance for conducting site inspections (SIs) under CERCLA. Data collection requirements for these investigations are consistent with data needed for the revised Hazard Ranking System (HRS). This guidance discusses how to review and evaluate available information, plan an effective sampling strategy to acquire analytical data to evaluate a site according to the HRS, and prepare required reports and work products. …

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