Water Department

What type of pipes are in your home

If your home was built prior to 1988, please take the lead pipe test.  Homes built after 1988 are asked to take the test as well, just for safety's sake.
Need help with your water bill?
The Low-Income Household Water Assistance Program (LIHWAP) helps Virginia residents pay their water and wastewater bills.
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Each Spring the City of Manassas conducts its hydrant flushing program. We do this is to maintain the high quality of water in our distribution system. You will likely see City of Manassas personnel in your neighborhoods starting on April 1, 2024 and continuing through early May
2023 Gold Award
The Water Treatment Plant was recognized by the Virginia Department of Health Office of Drinking Water with the 2023 Gold Award for achievement  of Virginia’s Optimization Program Goals for water treatment plant performance excellence in plant clarification, filtration and backwash efforts.  The award recognizes exemplary commitment to optimize particle removal and disinfection capabilities at conventional surface water treatment plants reducing the risks to public health by achieving drinking water quality above and beyond the regulatory standards. This is the second year in a row the City has achieved this award.
Fast Facts

The primary source of drinking water for the City of Manassas is Lake Manassas. Construction of the dam which impounds Lake Manassas was completed in 1969, and the lake holds 5.1 billion gallons of water when full. Water from Lake Manassas is treated at its water treatment plant (WTP), which can treat up to 14 million gallons per day.

Treatment is performed through the settling of suspended solids, filtration, and disinfection. After disinfection, water is pumped to the distribution system.

The City of Manassas Water Distribution system has approximately 10,650 customer connections and consists of 155 miles of pipe, 1,443 fire hydrants, 3,758 valves, four water storage facilities, and one booster station. This infrastructure is maintained through routine flushing, valve exercising, leak detection, pipe replacement, and repairs. Find out more:

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