Water Operations

Water News

PW

NH Drought Report for August 2025

Water Division Issues "Moderate Drought" Water Report

August 15, 2025

The Seacoast area is currently in a Moderate Drought according to the US Drought Monitor program. There has on...

PW

DPW Begins Limited Fall Hydrant Flushing

September 16, 2025

The City of Portsmouth Department of Public Works Water Division begins its seasonal routine flushing of fire ...

WA

Water Supply and Demand Q2 2025

Portsmouth & Pease Drinking Water Supply Update 2025 Q2

July 28, 2025

The City of Portsmouth, NH, water supply sources have recovered from the drought condit...

COP

DPW Water Division Notifies Affected Residents of Service Line Inventory Results

November 8, 2024

The U.S. Environmental Protection Agency (EPA) required that all public water suppliers, including the City of...

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The Water Division

The Water Division performs the following functions for the communities served by the Portsmouth regional water system that include Portsmouth, Pease Tradeport, Newington, New Castle, Greenland and portions of Rye and Madbury:

Maintains water mains, hydrants and valves
Maintains water services to the customer's shutoff valves (the customer is responsible for the private portion of their service beyond the shutoff valve)
Maintains/installs/reads water meters
Performs backflow testing and cross connection control program
Manages the Bellamy Reservoir and Madbury Surface Water Treatment Facility together with eight groundwater wells