Section_VII_-_Pressure_Sewer.pdf

This is a technical standards document from the Washington Suburban Sanitary Commission (WSSC) in Maryland detailing pressure sewer installation specifications and procedures. The document, dated September 2021, serves as Section VII of WSSC's standard details manual and provides comprehensive guidance for pressure sewer construction, maintenance, and connection work. The file contains a table of contents referencing 20 detailed specifications covering trench details for flexible PVC and HDPE pressure sewer pipes, service valve assemblies, flushing connections, blocking details, anchoring procedures, air/vacuum valve installations, house connections, in-line valve installations, mechanical couplings, transition manholes, mainline connections, abandonment procedures, and locator station installations. These standards are directly applicable to the related Area Water and Sewer House Connection contract opportunity, which requires construction of approximately 335 linear feet of 1-inch pressure sewer house connections as part of approximately 150 new service installations across Prince George's and Montgomery Counties, Maryland, with sealed responses due by 2:00 pm on Tuesday, May 26, 2026, via the WSSC eProcurement Portal.

The standards document does not address pricing, contract terms, or funding; however, it establishes the technical and construction requirements that contractors must follow when executing water and sewer house connection projects within WSSC's service area. Contractors responding to the Area Water and Sewer House Connection solicitation must comply with all applicable pressure sewer details and specifications outlined in this manual to ensure work meets WSSC's established standards for quality, safety, and operational requirements.