WSSC Responds to Sewer Main Break at Piscataway Wastewater Treatment Plant

Drinking Water System Not Affected

| News Release



Laurel – February 9, 2017 – WSSC is working to contain a Sanitary Sewer Overflow at the Piscataway Wastewater Treatment Plant on Farmington Road in Accokeek. A pressurized sewer main on the plant ruptured at approximately 1:40 p.m. today. Piscataway Creek is currently being impacted by the overflow.

Early calculations indicate that the overflow has exceeded 1,000,000 gallons and is ongoing. WSSC has mobilized contractors to repair the sewer main and to set up pumping equipment to divert the wastewater into retention basins on the plant grounds.

It is important to note that WSSC’s water and wastewater systems are separate. This overflow is NOT affecting WSSC’s drinking water.

The Piscataway Plant treats about 24 million gallons of wastewater per day. Approximately half of that is overflowing due to the broken sewer main. The remaining portion is being treated as normal.

WSSC is working around the clock to put the necessary equipment in place to divert the flow until the pipe repairs can be made. The amount of the overflow is being carefully monitored and updates will be provided.

Notifications have been made to the Maryland Department of the Environment and Prince George’s County Health Department.

Numerous signs have been posted in the area of the overflow, along the Piscataway Creek. Once the overflow has stopped, WSSC will take all appropriate measures to clean up the impacted area.

WSSC is committed to protecting the health of the public and the environment. With more than 5,500 miles of sewer mains throughout its service area, WSSC appreciates notification from citizens if a sewer back up or water main break is suspected. Please call our 24-hour Emergency Call Center at 301-206-4002 to report water or sewer emergencies in Montgomery or Prince George's counties. Customers can also report emergencies via email at and those customers who have smart phones can report emergencies using the WSSC Mobile App.

WSSC Water is the proud provider of safe, seamless and satisfying water services, making the essential possible every day for our neighbors in Montgomery and Prince George’s counties. We work to deliver our best because it’s what our customers expect and deserve.

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