Renovation of a water / sewer project in Portsmouth, New Hampshire. Design plans call for the renovation of a water / sewer project.

The Pease Treatment Facility Was Original Constructed in the 1950s and Was Upgraded in the 1990s. Selected Upgrades Have Been Completed Since the 1990s With the Headworks and Primary Clarifier Project Completed in 2021. Much of the Facility Has Exceeded Its Useful Lifespan and Needs Replacement. The City Received an Updated Npdes Permit Allowing for an Increase in Design Flow Rate From 1.2 Million Gallons Per Day to 1.77 Million Gallons Per Day. This Increase in Flow Was to Accommodate a Request From Lonza Biologics for Potential Expansion of Their Manufacturing Capacity. In February 2023, the City Was Notified That the Request for an Increase in Flow Was No Longer Required Due to Water Conservation Upgrades and Manufacturing Process Changes Completed by Lonza Biologics. Since No Additional Flow is Required to Accommodate Lonza's Expansion Needs, the City is Changing Its Project Scope to Only Include Critical Refurbishment of Existing Equipment. Initial Engineering Design for the Necessary Upgrades is Underway. Funding Under the Bond Category Represents the Costs to Design and Construct Replacement of Aged Equipment at the Existing Facility. Costs Are Preliminary and Will Be Refined as the Design Moves Forward. The City is Working to Fund This Project Using Revolving Loan Funds (Srf) to Take Advantage of Principal Forgiveness, Lower Interest Rates and Favorable Construction Financing As of January 5, 2026, this project is included in the Portsmouth School Department Fiscal Year 2025-2030 CIP. It has entered the design phase, but a timelien for construction has not yet been established.