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 
EPA New England Issued Permits for Tribal Lands
- General Permit for Storm Water Discharges from Regulated Small Municipal Separate Storm Sewer Systems, MS4s (PDF) (56 pp, 265K, about PDF)
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