Jump to main content or area navigation.

Contact Us

NPDES Permits in New England

Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont & 10 Tribal Nations

Connecticut
EPA New England Issued Permits

The state of Connecticut has assumed the NPDES program from the federal government. The state issues its permits through the Connecticut Department of Environmental Protection.

State Agency: Connecticut Department of Energy and Environmental Protection Click icon for EPA disclaimer.

EPA New England Issued Permits for Tribal Lands

Draft Individual Facility Permits

To view attachments common to many permits use the "EPA Permit Forms & Attachments" link in the left hand navigation.

Notes:
POTW = publicly owned treatment works facility
WPCF = water pollution control facility
WPCP = water pollution control plant
WWTF = wastewater treatment facility
WWTP = wastewater treatment plant

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.

Recent Individual NPDES Permits Issued by the State of Connecticut

Search for NPDES permits:

City - Town (Watershed) Facility Name Permit Number Date of Issuance
Ansonia (Naugatuck River) Ansonia Copper and Brass, Inc. (PDF) (17 pp, 759K) CT0002968 03/22/2006
Ansonia (Naugutuck River) Ansonia WPCA, City of (PDF) (26 pp, 866K) CT0100013 06/30/2006
Baltic (Shetucket River) Sprague WWTP (PDF) (26 pp, 1MB) CT0100978 12/23/2005
Bantam (Bantam River) Litchfield, Town of (PDF) (24 pp, 167K) CT0100803 09/18/2006
Branford (Branford River) Atlantic Wire Company (PDF) (18 pp, 737K) CT0000159 12/08/2005
Bridgeport (Long Island Sound, Cedar Creek) Bridgeport West Side POTW (PDF) (25 pp, 2MB) | Fact Sheet (PDF) (3 pp, 195K) CT0100056 03/17/2003
Canton (Farmington River) Canton WPCF (PDF) (22 pp, 966K) CT0100072 04/25/2011
Central Village (Moosup River) Plainfield North Plant, Town of (PDF) (26 pp, 1.1MB) CT0100447 10/18/2005
Cheshire (Judd Brook) Erickson Metals Corporation (PDF) (16 pp, 595K) CT0025267 07/26/2006
Cheshire (Quinnipac River) Cheshire, Town of (PDF) (22 pp, 986K) CT0100081 09/27/2004
Cromwell (Connecticut River) Mattabassett District, The (PDF) (23 pp, 117K) CT0100307 06/30/2009
Danbury (Limekiln Brook) Danbury POTW, City of (PDF) (25 pp, 2.1MB) | Fact Sheet (PDF) (4 pp, 257K) CT0100145 02/13/2003
Deep River (Deep River Tributary) Haynes Materials Company (PDF) (12 pp, 143K) CT0030465 08/30/2007
Deep River (Deep River) Silgan Plastics Corporation (PDF) (17 pp, 712K) CT0000787 03/08/2006
Deep River (Connecticut River) Deep River WPCF, Town of (PDF) (21 pp, 425K) CT0101745 09/08/2006
Derby (Housatonic River) Derby, City of (PDF) (23 pp, 810K) CT0100161 06/21/2006
East Hampton (Connecticut River) East Hampton, Town of (PDF) (14 pp, 537K) CT0024694 09/30/1993
East Windsor (Connecticut River) East Windsor WPCF (PDF) (26 pp, 1.2MB) CT0100196 09/08/2004
East Windsor (Connecticut River) Textron, Inc. (PDF) (14 pp, 680K) CT0030040 08/25/2010
Enfield (Connecticut River) Enfield, Town of (PDF) (24 pp, 810K) CT0100200 06/21/2006
Fairfield (Long Island Sound) Fairfield, Town of (PDF) (25 pp, 545K) CT0101044 01/13/2006
Glastonbury (Salmon & Hubbard Brook) Connecticut Galvanizing (PDF) (47 pp, 2.3MB) CT0030449 09/30/2011
Glastonbury (Connecticut River) Glastonbury WPCF (PDF) (19 pp, 814K) CT0100226 09/08/2004
Greenwich (Byram River) Connecticut Health of Greenwich LLC (PDF) (17 pp, 76K) CT0101362 10/27/2011
Greenwich (Byram River) Convent of the Sacred Heart (PDF) (18 pp, 426K) CT0101818 08/28/2006
Greenwich (Long Island Sound) Greenwich, Town of (PDF) (22 pp, 158K) CT0100234 03/04/2009
Greenwich (Byram River) Greenwich American Inc. (PDF) (18 pp, 710K) CT0030295 07/01/2006
Greenwich (Byram River) High Tower Trading LLC (PDF) (18 pp, 149K) CT0020800 10/18/2007
Greenwich (Irrigation Pond and Byram River) Round Hill Club, Inc. (PDF) (18 pp, 242K) CT0100986 04/17/2006
Groton (Thames River) Electric Boat Corporation (Permit Modification) (PDF) (7 pp, 39K) CT0003824 04/17/2008
Groton (Thames River) Electric Boat Corporation (PDF) (42 pp, 1.5MB) CT0003824 07/05/2006
Groton (Thames River) Groton, Town of (PDF) (22 pp, 103K) CT0100242 09/19/2006
Groton (Thames River) Groton, City of (PDF) (23 pp, 892K) CT0101184 10/04/2004
Groton (Thames River) Naval Submarine Base New London (PDF) (22 pp, 85K) CT0003921 09/27/2006
Groton (Thames River) Pfizer Inc. (PDF) (35 pp, 2MB) CT0000957 04/23/2010
Groton (Long Island Sound) Project Oceanology (PDF) (6 pp, 280K) CT0030562 12/19/2011
Groton (Long Island Sound) University of Connecticut (PDF) (11 pp, 52K) CT0028631 06/29/2011
Groton (Long Island Sound) University of Connecticut (PDF) (13 pp, 483K) CT0028631 06/12/2006
Guilford (East Creek) Algonquin Industries Inc. (PDF) (17 pp, 708K) CT0028100 03/09/2006
Hartford (Park River) Capitol District Energy Center (PDF) (18 pp, 204K) CT0026522 09/14/2010
Hartford (Silver Lake) Connecticut Department of Environmental Protection (PDF) (13 pp, 688K) CT0029947 04/28/2011
Hartford (Housatonic River) FirstLight Hydro Generating Company (PDF) (19 pp, 493K) CT0030287 10/26/2010
Hartford (Park River/Connecticut River) Hartford Steam Company (PERMIT MODIFICATION), The (PDF) (4 pp, 50K) CT0004014 04/12/2007
Hartford (Park River and Connecticut River) Hartford Steam Company (PERMIT MODIFICATION), The (PDF) (4 pp, 50K) CT0004014 02/23/2007
Hartford (Park River and Connecticut River) Hartford Stream Company (PDF) (21 pp, 86K) CT0004014 08/24/2006
Hartford (Connecticut River) Metropolitan District, The (PDF) (32 pp, 1.6MB) CT0100251 10/25/2005
Hartford (Connecticut River) Metropolitan District, The (PDF) (22 pp, 905K) CT0100170 10/07/2005
Hartford (Connecticut River) Resource Recovery Systems of CT, Inc. (PDF) (21 pp, 846K) CT0003875 10/02/1997
Lebanon (Shetucket River) Hyponex Corporation (PDF) (11 pp, 462K) CT0030431 02/10/2006
Manchester (Hockanum River) Manchester, Town of (PDF) (24 pp, 432K) CT0100293 07/21/2006
Meriden (Quinnipiac River) Meriden WPCF (PDF) (26 pp, 1MB) CT0100315 10/18/2005
Middletown (Connecticut River) Middletown, City of (PDF) (22 pp, 874K) CT0100323 02/08/2005
Milford (Housatonic River) Milford, City of (PDF) (25 pp, 1.02MB) CT0101656 10/05/2004
Milford (Housatonic River) New Milford, Town of (PDF) (23 pp, 833K) CT0100391 10/04/2004
Montville (Thames River) AES Thames, Inc. (PDF) (21 pp, 867K) CT0026298 05/28/1996
Mystic (Mystic River) Sea Research Foundation, Inc. (PDF) (24 pp, 107K) CT0020630 03/18/2009
New Britain (Piper Brook) Tilcon Connecticut, Inc. (PDF) (15 pp, 641K) CT0030155 05/09/2011
New Fairfield (Ball Pond Brook) New Albertsons, Inc. (PDF) (14 pp, 73K) CT0030406 04/24/2009
New Haven (New Haven Harbor) Greater New Haven WPCA (PDF) (27 pp, 136K) CT0100366 10/01/2010
New Haven (Morris Creek) Tweed – New Haven Airport Authority (MODIFICATION) (PDF) (4 pp, 24K) CT0030457 05/15/2009
New Haven (Morris Creek) Tweed New Haven Airport Authority (PDF) (27 pp, 98K) CT0030457 04/17/2008
New London USCG Academy (PDF) (15 pp, 65K) SP0002235 10/27/2010
New London (Thames River Watershed) USCG Academy (PDF) (15 pp, 65K) CT0029998 10/15/2010
New London (Thames River) New London, City of (PDF) (12 pp, 103K) CT0100382 09/21/2006
New Milford (Housatonic River) Food Ingredients Specialties (PDF) (13 pp, 669K) CT0000850 03/15/1999
New Milford (Housatonic River) Kimberly-Clark Corporation (PDF) (20 pp, 1MB) CT0003212 12/09/2005
New Milford (Housatonic River) New Milford, Town of (PDF) (23 pp, 833K) CT0100391 11/10/1998
Newington (Quarry Pond) Department of Transportation (PDF) (8 pp, 386K) CT0027201 12/23/2011
Newtown (Pootactuck River) Newtown WPCF (PDF) (26 pp, 1.1MB) CT0101788 10/12/2005
Norfolk (Blackberry River) Norfolk Sewer District (PDF) (21 pp, 911K) CT0101231 10/04/2005
North Haven (Quinnipiac River) Pharmacia & Upjohn Company (PDF) (22 pp, 1.1MB) CT0001341 01/11/2005
North Haven (Quinnipiac River) North Haven, Town of (PDF) (24 pp, 167K) CT0100803 09/20/2006
North Haven (Muddy River) United Aluminum Corporation (PDF) (12 pp, 192K) CT0030201 08/17/2007
Norwalk (Norwalk River) Norwalk, City of (PDF) (26 pp, 1.08MB) CT0101249 09/25/2005
Norwich (Thames River) Norwich Sewer Authority, City of (PDF) (25 pp, 430K) CT0100412 08/16/2006
Plainville (Pequabuck River) Plainville, Town of (PDF) (24 pp, 911K) CT0100455 08/31/2005
Pomfret (Wappoquia Brook) Fiberoptics Technology, Inc. (PDF) (12 pp, 525K) CT0026832 03/06/2006
Portland (Connecticut River) Portland, Town of (PDF) (22 pp, 102K) CT0101150 10/03/2006
Redding (Norwalk River) Redding, Town of (PDF) (28 pp, 1.1MB) CT0101770 11/30/2005
Ridgefield (Great Swamp) Ridgefield WPCF, Town of (PDF) (22 pp, 1.3MB) CT0100854 09/29/2004
Rockville (Hockanum River) Ano-coil Corporation (PDF) (15 pp, 85K) CT0020389 12/03/2010
Rocky Hill (Connecticut River) Rocky Hill WPCF (PDF) (22 pp, 889K) CT0100480 09/29/2005
Seymour (Naugatuck River) Seymour, Town of (PDF) (25 pp, 1.1MB) CT0100501 03/15/2005
Sharon (Indian Lake Creek) Sharon, Town of (PDF) (20 pp, 874K) CT0101052 03/08/2006
Shelton (Housatonic River) Auto Swage Products, Inc. (PDF) (18 pp, 148K) CT0020826 05/29/2007
Shelton (Housatonic River) Shelton WPCF, City of (PDF) (21 pp, 77K) CT0100714 12/13/2010
Shelton (Housatonic River) Shelton WPCF, City of (PDF) (22 pp, 855K) CT0100714 09/29/2004
Simsbury (Farmington River) Simsbury, Town of (PDF) (22 pp, 878K) CT0100919 02/22/2005
Somers Somers, Town of (PDF) (1 pg, 14K) CT0101605 09/14/2006
Southington (Quinnipiac River) Southington, Town of (PDF) (26 pp, 1MB) CT0100536 11/08/2004
Stafford Springs (Willimantic River) Stafford WPCF, Town of (PDF) (23 pp, 385K) CT0101214 02/07/2007
Stamford (Stamford Harbor) Water Pollution Control Authority Stamford WPCF (PDF) (20 pp, 760K) CT0101087 03/26/2008
Sterling (Moosup River) Exeter Energy, L.P. (PDF) (18 pp, 396K) CT0101087 01/31/2007
Stonington (Mystic River) Stonington, Town of (PDF) (21 pp, 97K) CT0100544 09/12/2006
Stonington (Stonington Harbor) Stonington, Town of (PDF) (24 pp, 965K) CT0101281 10/07/2005
Stonington (Pawcatuck River) Stonington, Town of (PDF) (24 pp, 1.1MB) CT0101290 11/10/2005
Stratford (Housatonic River) Sikorsky Aircraft Corporation (MODIFICATION) (PDF) (15 pp, 360K) CT0001716 01/03/2007
Stratford (Housatonic River) Sikorsky Aircraft Corporation (PDF) (25 pp, 128K) CT0001716 09/26/2006
Stratford (Housatonic River) Stratford WPCF, Town of (PDF) (20 pp, 792K) CT0101036 03/13/2008
Storrs (Willimantic River) University of Connecticut (PDF) (22 pp, 106K) CT0101320 11/13/2006
Suffield (Connecticut River) Suffield, Town of (PDF) (25 pp, 1MB) CT0100552 03/15/2005
Terryville (Pequabuck River) Plymouth, Town of (PDF) (23 pp, 834K) CT0100463 02/01/2006
Thomaston (Naugatuck River) Quality Rolling and Deburring Co. Inc. (PDF) (25 pp, 1.6MB) CT0025305 04/01/2008
Thomaston (Naugatuck River) Summit Corporation of America (PDF) (23 pp, 1.2MB) CT0100781 12/21/2007
Thomaston (Naugutuck River) Thomaston, Town of (PDF) (27 pp, 182K) CT0100781 09/28/2006
Thomaston (Naugatuck River) Whyco Finishing Technologies (PDF) (20 pp, 968K) CT0001457 12/28/2007
Torrington (Naugatuck River) Torrington, City of (PDF) (24 pp, 410K) CT0100579 08/14/2006
Vernon (Holkanum River) Vernon WPCF, Town of (PDF) (25 pp, 1.1MB) CT0100609 02/17/2004
Versailles (Papermill Pond) Sprague Paperboard Inc. (PDF) (21 pp, 871K) CT0003751 03/08/2006
Wallingford (Quinnipiac River) Ctyec Industries, Inc. (PDF) (59 pp, 486K) CT0000086 05/17/2011
Wallingford (Quinnipiac River) Wallingford WPCF (PDF) (6 pp, 985K) CT0100617 12/28/2005
Washington (Lake Waramaug) Lake Waramaug InterLocal Commission (PDF) (9 pp, 36K) CT0024805 04/09/2009
Waterbury (Naugatuck River) Ansonia Copper & Brass, Inc. (PDF) (13 pp, 82K) CT0002968 08/15/2011
Waterbury (Naugatuck River) Siedel, Inc. (PDF) (13 pp, 125K) CT0026808 06/20/2011
Waterbury (Naugutuck River) Seidel, Inc (PDF) (15 pp, 596K) CT0026808 06/13/2006
Waterford (Long Island Sound) Dominion Nuclear Connecticut, Inc. (PDF) (92 pp, 319K) CT0003263 09/01/2010
West Haven (New Haven Harbor) West Haven, City of (PDF) (22 pp, 407K) CT0101079 10/26/2006
Westport (Saugutuck River) Westport, Town of (PDF) (21 pp, 425K) CT0100684 03/26/2007
Willimantic (Shetucket River) Windham, Town of (PDF) (24 pp, 1MB) CT0101001 03/15/2005
Windsor (Farmington River) Poquonock WPCF (PDF) (26 pp, 1.2MB) CT0100994 12/01/2005
Windsor Locks (Connecticut River) Ahlstrom Nonwovens, LLC (PDF) (45 pp, 461K) CT0000434 09/24/2009
Windsor Locks (Connecticut River) Windsor Locks WPCF (PDF) (24 pp, 883K) CT0101591 09/09/2005
Winsted (Still River) Winchester, Town of (PDF) (42 pp, 944K) CT0101222 10/18/2005
Woodstock (May Brook) Rogers Corporation (PDF) (12 pp, 114K) CT0021504 02/23/2009

Please note that storm water permit information is available at our Storm Water Topics


Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, & 10 Tribal Nations

Jump to main content.