Wastewater & Sewer
May 28, 2019
Guided public tours of the Peirce Island Wastewater Treatment Facility (WWTF) construction site will be conduc...Read More
May 21, 2019
Methuen and the City are conducting night work at the Peirce Island WWTF from Wednesday...Read More
September 4, 2018
Work related to City’s ongoing sewer system evaluation study will begin on September 4,...Read More
April 13, 2018
The City plans to continue to authorize Saturday and/or Sunday construction work to take place on the Pei...Read More
Sewer Division Information
Sewage collection and treatment is the responsibility of the Sewer Division of the Department of Public Works (DPW). This division maintains and operates the City’s wastewater system. The wastewater system includes:
- 120 miles of sewer collection system
- 20 wastewater pump stations
- 3 EPA permitted combined sewer overflows
- Peirce Island Wastewater Treatment Facility
- Pease Wastewater Treatment Facility
The City’s sewer system provides service to over 90% of the City’s developed land area. There are some areas of the City that do not have access to a public sewer system and use septic systems for wastewater disposal. The City’s collection system extends into portions of Greenland and Rye and the City provides treatment to all the wastewater from the Town of New Castle.
The City has a number of ongoing operational and capital projects as well as ongoing long term programs. Major capital projects include the upgrade to the Peirce Island Wastewater Treatment Facility, a new Headworks Building at the Pease Wastewater Treatment Facility and a major overhaul of the Lafayette Road Pumping Station. The City’s long term programs include removal of extraneous water in the sewer collection system through a sewer system evaluation survey and continued work on reducing combined sewer overflows through implementation of the City’s Long Term Control Plan.
Funding for operation of the sewer division is provided through the rate payers who contribute to the Sewer Enterprise Fund. The City has approximately 6,400 sewer customers. The City makes upgrades to components of the wastewater system through the Sewer Enterprise Fund. Many of these projects are regulatory driven and for major capital project funding needs are identified as part of the City’s Capital Improvements Plan.
For sewer related emergencies, contact the Department of Public Works Dispatch at (603) 427-1530.
A CSO began at the end of the day (near midnight) of January 25, 2020 at Portsmouth Site 10A to South Mill Pond. See https://t.co/bmc9bw62We for more information. #PortsmouthNH
Portsmouth, NH Combined Sewer Overflow (CSO) Alert @PortsmouthCSOs A CSO began the morning of December 14, 2019 at Portsmouth Site 10A to South Mill Pond and Site 013 (Deer St) to the Piscataqua River. See https://t.co/bmc9bw62We for more information. #PortsmouthNH
A combined sewer overflow occurred early in the morning of October 17, 2019 at Portsmouth Site 10A to South Mill Pond. See https://t.co/bmc9bw62We for more information on combined sewer overflows. Call 603-427-1530 with questions. #PortsmouthNH
A combined sewer overflow event began early in the morning of August 8, 2019 at Portsmouth Site 10A to South Mill Pond. See https://t.co/bmc9bw62We for additional details. Call 603-427-1530 with questions. #PortsmouthNH