Notice is hereby given that the Stamford Water Pollution Control Authority has changed its mailing address for User Charge payments.

Effective April 1, 2015, all payments must be mailed to the following address:

City of Stamford WPCA 

PO Box 8063

Bridgeport, CT 06601-4063 


All property owners using the sewer system will be billed bi-annually, in October and in April.  Payment is due within thirty (30) days of the date listed on the bill and can be sent to the above address.  Payment must be via money order, bank check or personal check.    NO CASH PAYMENTS WILL BE ACCEPTED.


Any appeals regarding this change MUST be taken within twenty-one (21) days from the date upon which this change was filed with the Stamford Town Clerk’s Office in accordance with C.G.S. Section 7-255 (a)—the filing date was March 12, 2015.  Appeals must be address to the SWPCA, 111 Harbor View Avenue, 2nd Floor - Bldg. #11, Stamford, CT  06902.

Located in Stamford, Connecticut, The Stamford Water Pollution Control Facility processes wastewater from the City of Stamford and the neighboring Town of Darien, and discharges clean water into the East Branch of Stamford Harbor. There has been wastewater treatment at this site since 1900. The first plant was built in 1943, followed by an upgrade in 1976, and the latest upgrade in 2006.  The Facility is manned twenty-four hours a day, seven days a week, 365 days a year.

On this web site, you will find information about our technology and day-to-day operations. Please contact us if you have any questions or would like additional information.

The Stamford WPCA proudly supports the communities it serves and offers educational activities on wastewater treatment, stormwater, and FOG .  We invite you to tour our facility, either in person (public tours will be held on the second Friday of the month) or online with our virtual tour.

Smoke Testing Advisory 

November 20, 2015
Posted by msabo Friday, November 20, 2015 2:30:00 PM

UPDATE NOVEMBER 20, 2015 2:30PM  Smoke Testing activites described below have ended.


Please be advised that Stamford WPCA is scheduled to commence with smoke testing activities for the Bishop Meadows Condominium Association on Friday, 11-20-15 between 12:30 p.m. and 3:00 p.m.  The purpose of the smoke test is to identify sources of extraneous water that may enter the sanitary sewer from cracks in pipes, building downspouts, yard drains, or improper plumbing connections inside of the building.


Attached is a copy the public notification that will be delivered by the Facility Manager of the complex to residences potentially affected during these activities.


If you have any questions about this planned smoke testing activity, please call the Stamford WPCA at 203-977-5768.


Monday, November 16, 2015 11:46:00 AM

The WPCA Board Finance Committee will meet on Monday, November 16th, 2015, at the Stamford Government Center, in the 5th Floor Board of Education Conference Room. Time: 4:30 PM


The next WPCA Board Meeting will be held on Monday, November 16th, at the Stamford Government Center, in the 5th Floor Board of Education Conference Room.  Time: 5:30 PM


Notice is hereby given that the WPCA is executing the following change
Effective October 31, 2011:
All property owners, attorneys, real estate agents, banks, financing institutions, and mortgage companies requesting a final sewer charge CLOSING/RE-FINANCING QUOTE
Must now contact the SWPCA at the following number or email address: 1-888-263-5047 or .



WPCA Sanitary Sewer Smoke Testing 

September 2015
Tuesday, September 29, 2015 7:44:00 AM

The Stamford WPCA September 2015 smoke testing of the Public Sanitary Sewer System has been completed.




WPCA Plant Operations is staffed 24/7



Monday - Friday 8:00 AM to 4:00 PM


Monday-Friday 7:00 AM-3:00 PM

call 203-977-4596

After hours and on weekends

call 203-977-5570




Monday - Friday 8:00 AM-4:00 PM

call 203-977-5832