By Mark Gerlach
Water levels in Washington Lake are being reduced to avoid further perfluorooctanesulfonic acid, or PFOS, contamination, which has been detected in the lake at levels exceeding Environmental Protection Agency guidelines.
The state Department of Environmental Conservation hired a contractor to lower Washington Lake’s water levels, DEC spokesperson Sean Mahar said in an Aug. 22 email. Reducing the water levels will help avoid PFOS contamination spilling over the lake’s dam and polluting other water sources. After treating the water with portable granular activated carbon treatment units, it will be discharged from Washington Lake to Silver Stream, Mahar said.
The contractor was on site on Aug. 22 “to start mobilizing equipment and begin preparation work,” a letter from Martin Brand, DEC deputy commissioner of remediation and material management, to City Manager Michael Ciaravino said.
“The plan is designed to reduce the water levels in Washington (Lake) to avoid a release of PFOS contaminated water over the spillway and into the (Quassaick) Creek watershed in the event of an extreme weahter event,” Brand wrote. “This option will also treat the water to remove PFOS and thus not contribute contaminants to Silver Stream.”
To read the full article see the Friday, Aug. 26 editions of The Sentinel and Orange County Post.