EPA · discharge permits by watershed

Thames River-Frontal New London Harbor (subwatershed 011000030203)

15Current permits
1States

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

By state

Connecticut15

Permits discharging here

Permit holder	NPDES ID	City	State	Program	Discharger	Receiving water
ELECTRIC BOAT CORPORATION	CT0003824	GROTON	CT		Major	THAMES RIVER
MONTVILLE POWER LLC	CT0003115	UNCASVILLE	CT		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
AMERICAS STYRENICS, LLC	CTR050358	GALES FERRY	CT	Industrial stormwater	Minor	Thames River-Frontal New London Harbor
GATEWAY MONTVILLE	CTR050403	MONTVILLE	CT	Industrial stormwater	Minor	Thames River-Frontal New London Harbor
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
MONTVILLE POWER, LLC	CTR050106	UNCASVILLE	CT	Industrial stormwater	Minor	Thames River-Frontal New London Harbor
NAVAL SUBMARINE BASE NEW LONDON	CTL003921	GROTON	CT	Biosolids	Minor	Thames River-Frontal New London Harbor
PFIZER INC.	CTCSW0023	GROTON	CT		Minor	Thames River-Frontal New London Harbor
STATE PIER COMPLEX NEW LONDON	CTR050401	NEW LONDON	CT	Industrial stormwater	Minor	Thames River-Frontal New London Harbor
THAMES SHIPYARD NORTH,NEW LONO	CT0030333	NEW LONDON	CT		Minor	THAMES RIVER
U.S. NAVAL SUBMARINE BASE NEW LONDON (SUBASENLON)	CTR050144	GROTON	CT	Industrial stormwater	Minor	Thames River-Frontal New London Harbor
UNITED STATES COAST GUARD ACADEMY	CT0029998	NEW LONDON	CT		Minor	THAMES RIVER