WSSC Responds to Second Sanitary Sewer Overflow in Prince George’s County

Heavy Rainfall Causes Extremely High Wastewater Flows into Piscataway Wastewater Treatment Plant

| News Release



Drinking Water System Not Affected

Laurel, MD - February 11, 2018 - WSSC has responded to a second sanitary sewer overflow in Prince George’s County. The overflow, which is ongoing and coming out of a manhole just outside the Piscataway Wastewater Treatment Plant located at 11 Farmington Rd. W. in Accokeek, Md, began at approximately 9:39 a.m. Today’s heavy rainfall is causing extremely high wastewater flows into the plant. The untreated wastewater is flowing into Piscataway Creek. As of 8:15 p.m., the overflow continues at a rate of approximately 1,000 gallons per minute. An update will be provided once the total volume has been determined. Excessive rainfall also caused an overflow exceeding 500,000 gallons at WSSC’s Broad Creek Wastewater Pumping Station in Ft. Washington earlier today.

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

WSSC notified the Maryland Department of the Environment and the Prince George’s County Health Department. Signs will be posted tonight to warn people to avoid the area. 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 of a sewer back up or water main break. 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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