UPDATE: WSSC’s Piscataway Wastewater Treatment Plant Experienced an On-Property Wastewater Spill

Spill Totals Revised to 130,000 Gallons Down from 1.5 Million

| News Release



Laurel – May 9, 2016: Last Wednesday (5/4), WSSC’s Piscataway Wastewater Treatment Plant in Accokeek experienced a wastewater spill on-property that started at approximately 3:50 p.m. and ended Thursday morning (5/5) at 7:15 a.m.

The overflow occurred after the initial stage of the treatment process also known as the headworks. The force of the water flow pushed open a manhole cover causing partially treated wastewater to spill into a wooded area on the facility grounds. After further review of the system and spill, an estimated 360,000 gallons of partially treated wastewater were discharged, down from the original estimate of 1.5 million gallons. Of that total, approximately 230,000 gallons were recovered and pumped back into the treatment process, leaving a net of 130,000 gallons of wastewater spilled on the facility grounds. The overflow did not enter any storm drains or reach any body of water.

As a precaution, WSSC posted signs around the area and appropriate notifications were made to the Maryland Department of the Environment and the Prince George’s County Health Department.

WSSC is committed to protecting the health of the public and the environment. With more than 5,400 miles of sewer mains throughout its service area, WSSC appreciates notifications from citizens if a sewer back up is suspected. Citizens can call 301-206-4002 at any time to report water or sewer emergencies in Prince George’s or Montgomery counties.  

For 100 years, WSSC has proudly served the citizens of Prince George’s and Montgomery counties – providing drinking water that has always met strict Safe Drinking Water Act standards and protecting the environment through vital water resource recovery services. Our vision is to be THE world-class water utility, where excellent products and services are always on tap.


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