*** Updated with Corrected Total Overflow ***

Sanitary Sewer Overflow At Broad Creek Wastewater Pumping 10/11/13

| News Release



Laurel, Maryland – October 18, 2013: A more thorough analysis of the recent Sanitary Sewer Overflow (SSO) that occurred at the Broad Creek Wastewater Pumping Station in Ft. Washington on Friday, October 11 has yielded an updated SSO total.

During the overflow event, the flow meter installed in the overflow pipe malfunctioned and provided erroneous data. The excessive amount of rainfall throughout the area last week caused a storm surge in Broad Creek, which significantly exacerbated the depth recorded, resulting in an erroneous estimate of 3.9 million gallons. Reviewing several other pieces of available data confirms the need to revise the initial estimate. Looking at overflows at the station since 2006 with similar durations and wet weather characteristics, the revised estimated overflow volume is 105,000 gallons.

The SSO began at approximately 10:30 p.m. on Friday, October 11 ended at about 12:30 a.m., Saturday, October 12. The excessive rainfall caused high flows which exceeded the pump station’s capacity, even with all pumps in operation.

Notifications were made to the Maryland Department of the Environment and the Prince George’s County Health Department. WSSC crews posted signs in the area and performed necessary cleanup.

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 notification from citizens if a sewer back up is suspected. Citizens can call 301-206-4002 or toll free 1-800-828-6439 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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