FAQs - Service Line Notices
FAQs For Water Customers Receiving Notice of a Galvanized or Unknown Service Line Material
The latest US Environmental Protection Agency (EPA) Lead & Copper Rule Improvements requires all public water suppliers to inventory the material type and location of every water service line connected to their distribution systems. Water service lines are the pipes that connect homes and businesses to the City’s water mains.
City of Portsmouth, NH Public Works Hosts Second Mechanic Street Pump Station Public Information Meeting on Monday, November 9
City of Portsmouth, NH Announces Veterans Day Observances
Understanding Artificial Intelligence 11/12 @ 6pm
Whether you're curious, cautious, or somewhere in between, this session will help you leave with a clearer understanding of the opportunities and risks AI presents—and the confidence to navigate them.
Four Tree Island
Four Tree Island will be closed from Tuesday, October 27, through Thursday, October 29, for drainage culvert work on the causeway. This work requires a hole five feet wide to be dug on the causeway and will block the walkway. The island will be closed all day and night until the work is cleaned up on Thursday.
Construction
Library Closed November 11th
The Library will be closed on November 11th, 2026. We will resume normal hours on Thursday, November 12th.