Wastewater Overview

Find Repair Projects

In Your Neighborhood

As a part of the SR3 Program, WSSC Water has created an interactive map which provides up-to-date information on repair work across the entire service area. You can type in your address to start the search. Click the icon to the left to get started!

Wastewater Overview

WSSC Water’s strategic vision is to be a world-class provider of safe, reliable water/wastewater services that protect the health, safety, and quality of life for its customers in Montgomery and Prince George’s counties. WSSC Water is entrusted by the 1.8 million residents it serves to provide safe and reliable water to customers and return clean water to the environment. To date, drinking water provided by WSSC Water has always met or exceeded federal standards. In addition to providing clean, safe drinking water, the effective handling of wastewater is also critical to the safety and health of people and the environment.

Wastewater is a broadly descriptive term generally used to mean any water that has been used by people and discharged into a sewer system. Sources of wastewater include domestic residences, commercial properties, industrial operations or agriculture.  Municipal wastewater contains a broad spectrum of contaminants resulting from the mixing of wastewaters from different sources. Pollutants within wastewater can include pathogens (e.g., bacteria, viruses, and microscopic parasites), organic particles, soluble organic material, inorganic particles, toxins (e.g., pesticides, poisons, and herbicides), pharmaceuticals, household wastes, and even dissolved gasses.  Some homes are not served by a public sewer system and use septic systems to manage their wastewater.

Wastewater management is the process of safely and effectively collecting and treating wastewater and returning clean water back to the environment in a form that will have the least impact on people and the environment. A large part of this process is monitoring to ensure that pollutant levels in the treated wastewater effluent meet federal, state, and local standards for water quality protection. Monitoring is one of the duties of the six water resource recovery facilities operated by WSSC Water.

SR3 Program

NashvilleTN Sewer replacement photo
Credit: Layne Inliner, LLC

Part of WSSC Water’s commitment to water quality includes the Sewer Repair, Replacement, and Rehabilitation Program (SR3 Program). In response to a Consent Decree to address water pollution, in July of 2005 WSSC Water joined with other individuals and groups concerned with water quality and agreed on a comprehensive plan to dramatically minimize (and where possible, to eliminate) sanitary sewer overflows (SSOs). The SR3 Program includes comprehensive sewer basin studies coupled with sewer main, manhole and house connection reconstruction and replacement. Visit the SR3 Program page for more detailed information about the SSO Consent Decree, upcoming survey work or construction activities, right of entry program, project updates, outreach materials, frequently asked questions, and information on who to contact if you have other questions.

General Wastewater Concerns

There are a variety of ways to get in touch with WSSC Water with questions or concerns regarding wastewater collection or treatment.

  • Emergency Wastewater Concerns: 301-206-4002
    • The emergency number is for serious wastewater concerns including leaking pipes, sewage blocks, sewer odors and sewage flooding.
  • General Customer Service: 301-206-4001 or 1-800-634-8400
    • The general customer service line can answer most non-emergency questions.
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