Washougal sees PFAS increase in 3 city wells, decrease in 2 wells

The city of Washougal has reported that recent tests show a slight increase in perfluorooctane sulfonic acid levels in three city wells and a slight decrease in two wells, with the final well remaining non-detect in regard to the Environmental Protection Agency’s adopted limit of 4 parts per trillion.

The levels remain within the State Action Limit set by the Washington State Department of Health, according to a news release, which states that all other tested substances continue to fall below both EPA and state limits.