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Because much of our sewer pipeline system dates to the 1940s, a major rehabilitation program is under way. The work is important, but be aware that it could mean some temporary inconvenience for you.

Here are responses to some Frequently Asked Questions regarding the regulations for WSSC Water’s watershed properties surrounding the Triadelphia and T. Howard Duckett reservoirs. 

This page is for customers who have been contacted by WSSC Water to participate in drinking water sampling.Participation is by invitation only. Customers are selected based on a list approved by the M...

From the initial steps of project planning and design, to putting the final touches on construction projects big and small - that's the work of the Engineering and Construction Department.

July 1, 2026 - June 30, 2027

List updated July 8, 2026

The Water Fund provides assistance to customers in financial need and is funded entirely by contributions from customers, employees, and other sources.

Through our enhanced financial assistance programs, we are committed to helping customers pay their water bills. We offer financial assistance programs and encourage customers to subscribe to our fina...

Our reports provide analysis for water collected from both the Patuxent and Potomac rivers.

WSSC Water analyzes your drinking water for many things including color, hardness, pH, dissolved metals, organic and inorganic matter, pesticides, bacteria, disinfectants and much more.