Sawyer Base for possible contamination.
Within AFFF are chemicals, known as PFAS, that are classified by the EPA as emerging contaminants.
The Air Force examined multiple sites on base and found low levels of the PFOS chemical in one of four municipal drinking water wells, however, this was far below the EPA health advisory level; therefore, it is not believed to have any health effects to humans.
One private well tested positive for the PFOA chemical, this residence was given bottled water and the Air Force will be installing a water sanitation system.
In addition to testing all municipal and private wells, the Air Force has tested groundwater and surface water from multiple locations.
Three of the 15 locations’ surface water tested positive in exceedance of the EPA’s health advisory level.
In 2017, the Air Force also tested surface water and sediment samples in seven locations.
All four locations at Silver Lead Creek tested positive and exceeded the human health non-cancer value (HNV) in surface water.
None of the lake locations had exceedances in surface water or sediments.
Representatives assured Local 3 that the drinking water at K.I.