Abbreviation
WW
680 Peverly Hill Rd, Portsmouth, NH 03801
(603) 427-1530
Mon – Fri 7:30 AM – 3:30 PM
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Wastewater & Sewer
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City Reaffirms Its Commitment To Reducing South Mill Pond Discharges
Public Tour of Peirce Island Wastewater Treatment Facility Upgrade Project to be held on Tuesday, June 20th
Sewer Ordinance
Public Meetings
Resources
Planning, engineering and regulatory documents for the Peirce Island WWTF, the Pease Tradeport WWTF and the collection system are available on this page. You can also find below the 2014 Independent Peer Review Report relative to nitrogen in the Estuary and other water quality related documents.
Click links below to quickly move to each section:
Peirce Island Wastewater Facility
The Peirce Island WWTF (Fact Sheet) is the larger of the City’s two treatment facilities and is located on Peirce Island.
Treatment
Industrial Users
Fats, Oils and Grease
Fats, Oil and Grease – also called FOG in the wastewater business – can have negative impacts on wastewater collection and treatment systems. Most wastewater collection system blockages can be traced to FOG. Blockages in the wastewater collection system are serious, causing sewage spills, manhole overflows, or sewage backups in homes and businesses. Two types of FOG pollutants are common to wastewater systems.