Septic Tank Companies in District of Columbia

The District of Columbia is almost entirely served by the DC Water and Sewer Authority's (DC Water) municipal sewer system, making septic systems exceptionally rare within city limits. The few remaining onsite systems, primarily in the far northeast and northwest neighborhoods near the Maryland border, fall under the jurisdiction of the DC Department of Energy and Environment (DOEE). Due to Washington DC's dense urban development, heavy clay soils of the Piedmont and Coastal Plain transition zone, and extensive impervious surface coverage, new septic installations are virtually never permitted.