For better understanding this layer was renamed from Combined Sewer Outfall Sewer Shed to Combined Sewer System Area (CSS). This layer shows generally the aggregated footprint of the Combined Sewer Sy
An outfall is the discharge point of a waste stream into a body of water. Data are updated by city staff as needed, and automatically copied to the Open Data Portal. The "Last Updated" date shown on o
DC Water operates a wastewater collection system comprised of "separate" and "combined" sewers. Approximately two-thirds of the District is served by a separate sewer system, while the remaining one-t
