Water Operations

Water News

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Water Supply and Demand in 2024

City of Portsmouth Releases 2024 Drinking Water Status Report

February 18, 2025

The City's Water Division has published the Annual Drinking Water Status Report for 2024.

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Portsmouth & Pease Drinking Water Supply Update 2025 Q1

May 13, 2025

The City of Portsmouth NH water supply sources have been resilient to the effects of dr...

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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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Portsmouth-Dover Emergency Supply Water Line Plan

Drinking Water and Groundwater Commission Votes to Fund Design of Emergency Water Connection Between Portsmouth and Dover

March 31, 2022

The New Hampshire Drinking Water and Groundwater Trust Fund Advisory Commission unanimously voted at its ...

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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