News & Notices
Notice of Cancellation: August 13, 2025 Regular Meeting of the GNHWPCA
News & Notices GREATER NEW HAVEN WATER POLLUTION CONTROL AUTHORITY NOTICE OF CANCELLATION REGULAR MEETING OF THE GREATER NEW HAVEN WATER POLLUTION CONTROL AUTHORITY NOTICE OF CANCELLATION THE REGULAR MEETING OF THE GNHWPCA SCHEDULED FOR AUGUST 13, 2025 HAS BEEN CANCELED. Read More ...GNHWPCA Releases Updated Grease Interceptor Standard Detail
News & Notices The Greater New Haven Water Pollution Control Authority (GNHWPCA) has officially released a new Grease Interceptor Standard Detail, effective July 3, 2025. This updated standard aims to enhance compliance, improve maintenance practices, and protect the regional wastewater system from fats, oils, and grease (FOG) blockages. The revised detail reflects the latest in …Continue reading "GNHWPCA Releases Updated Grease Interceptor Standard Detail"
Read More ...Notice of Public Hearing May 14, 2025: Proposed Annual Budget & Sewer User Charge
News & Notices Greater New Haven Water Pollution Control AuthorityNotice of Public Hearing The Greater New Haven Water Pollution Control Authority (the “GNHWPCA”) will meet at the offices of the Greater New Haven Water Pollution Control Authority, 260 East Street, New Haven, Connecticut on May 14, 2025 at 5:45 P.M. for the purpose of holding …Continue reading "Notice of Public Hearing May 14, 2025: Proposed Annual Budget & Sewer User Charge"
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FOR SEWER MAPS OR QUESTIONS ABOUT EXISTING OR NEW SERVICE CONNECTIONS, PLEASE CONTACT US AT SEWERINFO@GNHWPCA.COM
The Greater New Haven Water Pollution Control Authority (GNHWPCA) was created in July, 2005 as a Regional Sewer Authority that provides sewer service to the communities of New Haven, Hamden, East Haven, and Woodbridge.
GNHWPCA has over 500 miles of sewer mains and 30 pump stations that convey the flow to the East Shore Water Pollution Abatement Facility. The East Shore Water Pollution Abatement Facility, located on the shore of the New Haven Harbor, treats approximately 40 million gallons per day (MGD) of raw sewage and it is the second largest wastewater treatment plant in Connecticut.
GNHWPCA also provides treatment for a portion of North Branford sewer customers through an agreement with the town.
Latest Projects
Request for Qualifications for On-Call Engineering Services (Project No: RFQ 2025-01)
Laboratory Conversion Project at East Shore WPAF (Project No: SSF 2018-04)
East Street Pump Station Upgrade for CSO Reduction (Project No: CWF 2017-01)
Infiltration and Inflow Improvements Woodbridge Areas 2 & 2A and East Haven Areas 15,18 & 23 (Project No: CWF 2019-02)
Construction Alerts
Yale Campus Trumbull Street Area Sewer Separation Phase 2
Construction Alerts Yale Campus Trumbull Street Area Sewer Separation Phase …Continue reading "Yale Campus Trumbull Street Area Sewer Separation Phase 2"
GNHWPCA Pipe Lining General Information
Construction Alerts GNHWPCA Pipe Lining General Information Cured in Place …Infiltration & Inflow Improvements: Woodbridge & East Haven
Construction Alerts Infiltration & Inflow Improvements: Woodbridge & East Haven …Continue reading "Infiltration & Inflow Improvements: Woodbridge & East Haven"
2024 CIPP Lining Improvements
Construction Alerts 2024 CIPP Lining Improvements This Project includes the …
Construction Alerts
Yale Campus Trumbull Street Area Sewer Separation Phase 2
Construction Alerts Yale Campus Trumbull Street Area Sewer Separation Phase …GNHWPCA Pipe Lining General Information
Construction Alerts GNHWPCA Pipe Lining General Information Cured in Place …Infiltration & Inflow Improvements: Woodbridge & East Haven
Construction Alerts Infiltration & Inflow Improvements: Woodbridge & East Haven …2024 CIPP Lining Improvements
Construction Alerts 2024 CIPP Lining Improvements This Project includes the …
Protecting the Environment
The Greater New Haven Water Pollution Control Authority has as one of its core values the protection of our environment.
We have undertaken a number of significant projects that reduce our impact on the environment or strive to protect the economic and social well being of our region.