PFAS Advisory Issued for Muddy Branch Tributary Near Former PSTA

Montgomery County Health Officer Dr. Kisha Davis issued a public health advisory on June 18, 2026 for a section of the Muddy Branch stream watershed and surrounding ponds, following Maryland MDE notification of elevated PFAS levels. The affected area runs along the south side of Great Seneca Highway and beneath Key West Avenue, adjacent to the former Public Safety Training Academy site. Residents and visitors are advised not to fish, swim, wade, or allow pets in the affected streams and ponds; WSSC public tap water remains safe.