WSSC Water Crews Quickly Respond to and Stop Sanitary Sewer Overflow in Upper Marlboro

Drinking Water System NOT Affected

| News Release



Laurel, Md. – September 7, 2020 – WSSC Water crews quickly responded to and stopped a Sanitary Sewer Overflow (SSO) in a heavily wooded area near 7401 South Osborne Road in Upper Marlboro. The SSO was confirmed at 4:30 p.m. on Sunday and stopped at 10:00 a.m. today. The total volume of the overflow is estimated to be 10,500 gallons of untreated wastewater that flowed into nearby Charles Branch Stream.  

Crews mobilized quickly to build a temporary access road through the wooded area to reach the broken sewer main. A temporary bypass pumping operation has been established which ended the SSO by moving wastewater around the broken section of the 24-inch in diameter pipe.  

WSSC Water crews will return to make permanent repairs to the sewer main on Tuesday, September 8, 2020.  

Signs will be posted today alerting residents to avoid the area while repairs are made. 

It is important to note that WSSC Water’s sewer and water systems are separate. The overflow is NOT affecting drinking water.  

WSSC Water has made appropriate notifications to the Maryland Department of the Environment and the Prince George’s County Health Department.  

WSSC Water 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 Water appreciates notifications from citizens if a sewer overflow or water main break is suspected. Citizens can call WSSC Water’s 24-hour Emergency Call Center at 301-206-4002 to report water or sewer emergencies in Prince George’s or Montgomery counties. Customers can also report emergencies via email at and those customers who have smart phones can report emergencies using the WSSC Water 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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