Plumbing Inspections/ WSSC

WSSC has a satellite office at DPIE located at 9400 Peppercorn Place, Largo, Maryland. The office is staffed by members of WSSC’s Development Services Group, including a Project Manager Supervisor and a Project Manager. The office hours of operation are Monday, Tuesday, Thursday and Friday 8:00 a.m.–3:00 p.m. and Wednesday 9:00 a.m.–3:00 p.m. The office closes for lunch every day from 12:00–12:30 p.m.

This office provides customers dealing with private new development or redevelopment projects support and coordination to facilitate the process of obtaining WSSC water and/or sewer plan approvals and permits including:

  • Coordinate WSSC approvals necessary for building permit release.
  • Review electronic water- and/or sewer-related plans:
    o Systems Extension Permits
    o Site Utility Plans
    o Minor Site Utility Plans
    o Hydraulic Analysis
    o Planning Commission Preliminary Plans
  • Provide guidance and information regarding permitting processes.
  • Joint WSSC and county staff consultation of construction projects and development.
  • Joint WSSC and DPIE issue resolution as part of the development subdivision/site plan approval process.
  • Manage plumbing and gas service connection permits electronically via the e-Permitting system. 

Plumbing inspections are handled by the Washington Suburban Sanitary Commission
Please call them at 301.206.8886.  Or call 301.206.4003 for more information.