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EPA · discharge permits by watershed

Subbasin 01100003

53Current permits
2States
3Watersheds

A subbasin is a unit of the national Watershed Boundary Dataset, and water crosses state lines: this one carries permits in Connecticut, Rhode Island. Each permit is placed by the outfall EPA names as its representative discharge point.

This subbasin contains 3 watersheds, each with its own page of permits. The table below is a sample of the 53 current permits recorded here; the pollutant list above names every limit EPA attaches to a permit in this subbasin.

By state

Watersheds inside this subbasin

The same permits, cut another way

The 53 permits whose outfall sits in this subbasin, grouped by one attribute at a time: the class of permit, the Clean Water Act program it was issued under, the type of coverage, and the size of the discharger. Each figure below counts the permits in that group.

By permit class

General32
Individual17

By program

By permit type

By major or minor

Pollutants with a limit in subbasin 01100003 78

Every pollutant a permit in this subbasin carries a limit for, most permits first.

Other subbasins

Permits discharging here

Permit holder	NPDES ID	City	State	Program	Discharger	Receiving water
ELECTRIC BOAT CORPORATION	CT0003824	GROTON	CT		Major	THAMES RIVER
GROTON WPCF	CT0100242	GROTON	CT	Publicly owned treatment works	Major	THAMES RIVER
MILLSTONE POWER STATION	CT0003263	WATERFORD	CT		Major	LONG ISLAND SOUND
MONTVILLE POWER LLC	CT0003115	UNCASVILLE	CT		Major	THAMES RIVER
MONTVILLE WPCA	CT0100935	UNCASVILLE	CT	Publicly owned treatment works	Major	THAMES RIVER
NAVAL SUB BASE NEW LONDON	CT0003921	GROTON	CT		Major	THAMES RIVER
TRINSEO LLC	CT0003131	LEDYARD	CT		Major	THAMES RIVER / ALLYNS COVE POND
308-1 MILE CREEK RD	CTR050001	OLD LYME	CT	Industrial stormwater	Minor	Pattagansett River-Frontal Long Island Sound
317 ROPE FERRY ROAD	CTGSN2931	WATERFORD	CT		Minor	Niantic River
ACES HIGH RV PARK	CTSSD0031	EAST LYME	CT		Minor	Niantic River
AIRGAS USA LLC - BOZRAH	CTR050314	BOZRAH	CT	Industrial stormwater	Minor	Pease Brook-Yantic River
AMERICAN AMBULANCE	CTR050064	NORWICH	CT	Industrial stormwater	Minor	Pease Brook-Yantic River
AMERICAS STYRENICS, LLC	CTR050358	GALES FERRY	CT	Industrial stormwater	Minor	Thames River-Frontal New London Harbor
BOYD'S USED AUTO PARTS, INC.	CTGSI1253	NORWICH	CT	Industrial stormwater	Minor	Poquetanuck Brook
BRIDGE NO. 00249	CT0030802	EAST LYME	CT		Minor	Bride Brook
DAVIS-STANDARD CORP	CTR050416	PAWCATUCK	CT	Industrial stormwater	Minor	Stony Brook-Frontal Fishers Island Sound
DEANS MILL ELEMENTARY SCHOOL	CTGSN3138	STONINGTON	CT		Minor	Stony Brook-Frontal Fishers Island Sound
DEEP RIVER RESERVOIR	CTPGP0001	LEBANON	CT		Minor	DEEP RIVER
EAST LYME LF/TS/LCF, RECYCLING	CTR050143	EAST LYME	CT	Industrial stormwater	Minor	Pattagansett River-Frontal Long Island Sound
GATEWAY MONTVILLE	CTR050403	MONTVILLE	CT	Industrial stormwater	Minor	Thames River-Frontal New London Harbor
GRAYWALL FARM LLC	CTCAFO007	LEBANON	CT	Concentrated animal feeding operations	Minor	Susquetonscut Brook
GROTON MIDDLE SCHOOL	CTGSN3420	GROTON	CT		Minor	Thames River-Frontal New London Harbor
GROTON WPCA, CITY OF	CTL101184	GROTON	CT	Biosolids	Minor	Thames River-Frontal New London Harbor
GROTON WPCF TOWN OF	CTL100242	GROTON	CT	Biosolids	Minor	Stony Brook-Frontal Fishers Island Sound
HARBOR HEIGHTS	CTGSN3370	STONINGTON	CT		Minor	Stony Brook-Frontal Fishers Island Sound
HARTFORD HEALTHCARE HEALTHCENTER	CTGSN3433	STONINGTON	CT		Minor	Stony Brook-Frontal Fishers Island Sound
HILLANDALE FARMS CONN, LLC	CTGSN3049	BOZRAH	CT		Minor	Pease Brook-Yantic River
HILLANDALE FARMS CONN, LLC	CTCAFO001	BOZRAH	CT	Concentrated animal feeding operations	Minor	YANTIC RIVER
HILLANDALE FARMS CONN, LLC	CTCAFO004	LEBANON	CT	Concentrated animal feeding operations	Minor	Pease Brook
HYPONEX CORPORATION	CT0030431	LEBANON	CT		Minor	Pease Brook-Yantic River
KCP ACQUISITION, LLC	RIRNE0357	WEST KINGSTON	RI	Industrial stormwater	Minor	Pattagansett River-Frontal Long Island Sound
LAKE OF ISLES	CTR100008	NORTH STONINGTON	CT		Minor	Poquetanuck Brook
LEDYARD WPC AUTHORITY	CT0101681	LEDYARD	CT	Publicly owned treatment works	Minor	MYSTIC RIVER/SETH WILLIAMS BROOK
LINCOLN VILLAGE	CTUIC0345	PRESTON	CT		Minor	Poquetanuck Brook
MASHANTUCKET PEQUOT HEALTH FACILITY	CTR10I006	MASHANTUCKET	CT	Construction stormwater	Minor	Poquetanuck Brook
MONTVILLE POWER, LLC	CTR050106	UNCASVILLE	CT	Industrial stormwater	Minor	Thames River-Frontal New London Harbor
MYSTIC MARINELIFE AQUARIUM	CT0020630	MYSTIC	CT		Minor	MYSTIC RIVER
NAVAL SUBMARINE BASE NEW LONDON	CTL003921	GROTON	CT	Biosolids	Minor	Thames River-Frontal New London Harbor
NORWICH WPCF	CTL100412	NORWICH	CT	Biosolids	Minor	Pease Brook-Yantic River
PCC STRUCTURALS	CTR050397	GROTON	CT	Industrial stormwater	Minor	Stony Brook-Frontal Fishers Island Sound

What this page shows

This page covers Clean Water Act discharge permits (EPA NPDES register) in watershed 01100003. It lists 53 records, with 52 in Connecticut and 1 in Rhode Island.