This data layer identifies the locations of Combined sewer overflow outfalls. Combined sewer systems are sewers that are designed to collect rainwater runoff, domestic sewage, and industrial wastewater in the same pipe. Most of the time, combined sewer systems transport all of their wastewater to a sewage treatment plant, where it is treated and then discharged to a water body. During periods of heavy rainfall or snowmelt, however, the wastewater volume in a combined sewer system can exceed the capacity of the sewer system or treatment plant. For this reason, combined sewer systems are designed to overflow occasionally and discharge excess untreated wastewater directly to nearby streams, rivers, or other water bodies. For further information visit: http://cfpub1.epa.gov/npdes/home.cfm?program_id=5

This data layer identifies the locations of Combined sewer overflow outfalls. Combined sewer systems are sewers that are designed to collect rainwater runoff, domestic sewage, and industrial wastewater in the same pipe. Most of the time, combined sewer systems transport all of their wastewater to a sewage treatment plant, where it is treated and then discharged to a water body. During periods of heavy rainfall or snowmelt, however, the wastewater volume in a combined sewer system can exceed the capacity of the sewer system or treatment plant. For this reason, combined sewer systems are designed to overflow occasionally and discharge excess untreated wastewater directly to nearby streams, rivers, or other water bodies. For further information visit: http://cfpub1.epa.gov/npdes/home.cfm?program_id=5

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Sanitary sewer overflows reported to the Department of Environmental Protection by the Washington Suburban Sanitary Commission or individuals in the County. Update Frequency - Daily

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Combined sewersheds in the City of Pittsburgh. Attribute field identifies sewersheds that were analyzed as part of PWSA's City Wide Green First Plan.

A sewershed is the area of land where all the sewers flow to a single end point, in most cases it is a regulator/permitted outfall, but in cases when the flow can be split between multiple regulators/permitted outfalls, the area above the point of split is treated as a separate sewershed.

Detroit Water & Sewerage waste water discharge event location data (2008-2014). Information on location and function of various structures involved with discharging effluent collected by the Detroit Water & Sewerage Department. Combined sewer overflow (CSO) discharge event data from 2008-2014 (2014 data are recorded through June) is available (data are to be interpreted in millions of gallons).