Sanitary Sewer Drainage Areas

The Township is divided into four major drainage areas into which sewage is conveyed for treatment.

• The Matsunk Sewage Treatment Plant, Upper Merion Township, treats waste for a small portion of the eastern are of the Township, known as the Panhandle section.
• Trout Run Sewage Treatment Plant, Upper Merion Township, treats sewage for parts of the central and eastern sections of the Township.
• Philadelphia Sewage Treatment Plant, Chester, treats sewage for the Strafford area.
• Valley Forge Sewer Authority's Sewer Treatment Plant, Phoenixville, treats sewage via the Wilson Road Pump Station for the rest of the Township. (Paoli and parts of Berwyn)

sewer@tredyffrin.org or (610) 408-3620