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Water Treatment & Distribution
The Water Treatment Division and Highway and Utilities Division of Concord General Services provide services for the treatment and distribution of potable water in Concord. The City of Concord has five water storage tanks that hold a total of 7.5 million gallons of water, which are used to regulate water distribution and are ready to maintain the water supply to the community in case of emergency situations. The water distribution system in Concord contains 172 miles of piping that delivers potable water to approximately 12,000 service connections.

Life depends on water, yet only 1% of the world’s water is suitable for use. Water is a valuable resource that we use daily for drinking, bathing, cooking, cleaning, agriculture, recreation, and fire protection. Public health depends on safe drinking water, and national standards are enforced to protect the public from contaminants in the water supply. The City of Concord processes the public water supply to meet these standards and to ensure a healthy community.

Report A Concern

Emergencies should be called in to 603-228-2737 from 8:00 a.m. to 5:00 p.m. during the week, and to 603-225-8696 after hours and during the weekend., otherwise please use our request tracker to report non-emergencies.

Fix A Leak Week

WaterSense Fix A Leak Week
In celebration of EPA WaterSense's Fix A Leak Week, Concord General Services is offering FREE Toilet Leak Dye Test Kits while supplies last! Find and fix household leaks during Fix A Leak Week to reduce water consumption and potentially save money on utility costs. Come by our Utility Billing Office at 311 North State Street to get your free material to perform a quick and easy leak test on your toilet! Or, you can use your own dye tablets or food coloring and follow the steps to our instructional video at

Also, join us on Twitter on Monday, March 20, 2017 from 2:00 p.m. to 3:00 p.m. EST as we help EPA WaterSense kick-off Fix A Leak Week! Follow the national conversation and tweet along using #FixALeak. Be sure to follow our Twitter page @ConcordNHGS to see our tweets and participate with us in celebrating Fix A Leak Week.

WaterSense Fix A Leak Week
Be a leak detective for Fix A Leak Week to save water and potentially even money on utility bills. Learn what you can do to find and fix leaks to at

World Water Day - Why Waste Water?

World Water Day Wastewater
Wednesday, March 22, 2017 is World Water Day, a United Nations initiative to celebrate water and advocate for sustainable management of resources. This year, the theme is to reduce and reuse wastewater. We invite the Concord community to celebrate World Water Day by learning more about wastewater and to consider alternative actions to recycle water and minimize use. A simple action you can take is to use less water to generate less wastewater. Upgrading household fixtures to water efficient fixtures (such as WaterSense labeled products), instantly conserves water, reduces wastewater volumes, and can save you money! Let’s all be sure to reduce and reuse in celebration of World Water Day. Visit for more information.

Water Treatment Plant

Concord Water Treatment Plant

The water treatment plant was built in 1974 and has a 10 Million Gallon per Day (MGD) capacity, but is currently treating an average of 4 MGD for Concord water consumers. Water is used more frequently in the warmer months, so the plant treats an average of 5.5 MGD in the summer. The treatment process is a traditional surface water treatment that involves coagulation, flocculation, sedimentation, and filtration. Treated water is then distributed throughout Concord to provide easy access to one of life’s basic necessities.

Contact Us
General Services

311 North State Street 
Concord, NH 03301

Operation Hours:
6:30 a.m. - 3:00 p.m.

Administration Hours:
Monday - Friday
8:00 a.m. - 5:00 p.m.

Phone: 603-228-2737
Fax:     603-224-6729
Mon, Mar. 20 - Sun, Mar. 26

Mon, May 29 - Sat, Jun. 3

Tue, Jul. 4 - Sat, Jul. 8

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News Flash
Fix A Leak Week
Celebrate EPA WaterSense's Fix A Leak Week (March 20-26, 2017) with us by becoming a leak detective! We are offering FREE Toilet Dye Test Kits at our Utility Billing Office and will be tweeting for the #FixALeak Twitter Party on Monday, March 20, 2017. Read on...
General Gazette - Vol. 4, Issue 3
Concord General Services' March newsletter is now available at Read on...
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