Washougal says PFAS levels in water system have decreased

Recent testing results show a “downward trend” in per- and polyfluoroalkyl substances (PFAS) levels in Washougal’s drinking water, with levels down to two wells approaching the EPA’s adopted limit of 4 parts per trillion (ppt), a reduction of 0.53 ppt from a previous sample. according to the City.

City employees identified slightly elevated PFAS levels at each of the City’s six wellheads during routine testing between February and May 2024. The levels prompted public notification “despite being below the State Action Level set by the Washington State Department of Health,” the City stated in the news release.

PFAS, a group of synthetic, manufactured chemicals widely used in common household items such as nonstick cookware, glass and surface cleaners, fabrics, floor polishes, paints, carpeting and water-resistant clothing, break down very slowly in the environment, leading to their nickname, “forever chemicals.”

“Although we are pleased to see recent improvements in PFAS levels, we remain committed to ongoing monitoring and evaluation,” public works director Trevor Evers said in a news release. “Our goal is to ensure that our drinking water remains safe and dependable.”

The City will continue to provide regular updates on testing results on a quarterly basis and efforts to manage PFAS, with the next testing cycle beginning in October 2024, according to the City.

“We are dedicated to transparent communication with our residents,” said City Manager David Scott. “Our goal is to ensure that you are kept informed about the quality of your drinking water and the steps we are taking to maintain its safety.”

Residents can access the latest information on PFAS testing and mitigation efforts on the City’s website at cityofwashougal.us/PFAS. For broader statewide PFAS data, visit the Washington State Department of Health’s PFAS Dashboard at doh.wa.gov/data-and-statistical-reports/washington-tracking-network-wtn/pfas/dashboard.