Firefighting Foam Chemicals: DOD is Investigating PFAS and Responding to Contamination, but Should Report More Cost Information, Report to Congressional Committees [open pdf - 2MB]
From the Highlights: "DOD has long used PFAS [per- and polyfluoroalkyl substances]-containing firefighting foam to extinguish fires quickly and keep them from reigniting. PFAS can migrate into the environment (e.g., drinking water) and may have adverse effects on human health. The federal government has issued two nonenforceable advisories but has not yet regulated PFAS in drinking water; some states have adopted PFAS regulations. Conference Report 116-333, accompanying the National Defense Authorization Act for Fiscal Year 2020, included a provision for GAO [Government Accountability Office] to review DOD's response to PFAS contamination. This report (1) describes DOD's progress in the investigation and cleanup of PFAS at its installations, and DOD's actions to address PFAS in drinking water; (2) describes DOD's actual and estimated costs for PFAS investigation and cleanup, and evaluates the extent to which DOD has reported those figures to Congress; and (3) describes DOD's progress in identifying PFAS-free firefighting alternatives."
Government Accountability Office: http://www.gao.gov/