Water Operations

Water News

WA

2025-2026 Portsmouth Monthly Precipitation

DPW Releases Q2 2026 Drinking Water Supply Updates for the Portsmouth and Pease Tradeport Water Systems

July 20, 2026

The City of Portsmouth’s water supply sources have continued to perform reliably despit...

COP

A drought map of New Hampshire that shows the Seacoast region in a "Severe Drought"

City Water Division Issues Water Use Advisory

May 15, 2026

Updated: June 22, 2026The Department of Public Works Water Division has issued a Water Use Advisory in respons...

WA

FY27 Rate and Fee Update

June 23, 2026

Effective July 1, 2026, the City of Portsmouth will implement changes to its water and ...

WA

DPW Releases Q1 2026 Drinking Water Supply Updates for the Portsmouth and Pease Tradeport Water Systems

April 28, 2026

The City of Portsmouth’s water supply sources have continued to perform reliably despit...

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