From Harford County government:
Employees of the Harford County Department of Public Works observed an overflow of wastewater at the Brentwood Park Sewer Pump Station at 12:15 pm on December 7, 2016. The facility is located at 1021 Red Pump Road in Bel Air, Maryland. Crews quickly responded to the site and the overflow was controlled by 1:45 pm. The source of the overflow was determined to be a broken pipe on the discharge side of the pump station. Repairs were made to the pipe by crews working through the evening and overnight. The pump station was returned to normal service on Thursday morning, December 8, 2016.
The overflow was estimated to be approximately 20,000 to 25,000 gallons. A portion of that flow entered into a tributary of Winters Run near Bel Air. Notification was provided to the Harford County Health Department, the Maryland Department of the Environment, and operators of local water plants.
Although the site has been stabilized and lime applied to the area impacted by the sewage spill, the public is advised to avoid contact with the area and stream. Signs have been posted to provide notice of the potentially affected area. These signs will remain in place for approximately 30 days. Citizens with questions or concerns may contact the Office of Citizens Affairs at 410-638-3420.