Camp Grayling is the National Guard’s largest training post, encompassing over 147,000 acres, and it provides training facilities and support services for the Army National Guard (ARNG), Air National Guard, US Army, US Army Reserve units, and allied forces. Camp Grayling is divided into North and South Post operational areas. Historically, aqueous film-forming foam (AFFF) was stored and/or used for training at various locations, including Grayling Army Airfield (GAAF), Cantonment, Maneuver Area Training Equipment Site (MATES), and North/South Post. PFAS was first discovered in groundwater on base in 2016.
Under the Comprehensive, Environmental Restoration, Compensation, and Liability Act (CERCLA), the Army National Guard is responsible for investigating and if necessary, addressing any environmental contamination caused by the Army National Guard while operating at Camp Grayling. EGLE serves as a partnering agency with the Army National Guard and does not lead the investigation. See below for specific details regarding the GAAF, Cantonment, MATES, and North/South Post investigations.