description_raw: Existing septic tank to be pumped, crushed, and backfilled. Maximum cover allowed over new septic tank is 3.0 feet. Access to grade on both compartments of tank are required. New building sewer requires separate WSSC permit. New drain-fields to be constructed on the contour at the proper depth. A pre-construction meeting with the Well &amp; Septic Inspector is required. Please call Kim Beall at 240-777-6315.