EPA · discharge permits by state
Discharge permits in Maine
- 829Current permits
- 61Major dischargers
- 349Individual permits
A major discharger is one EPA rates as significant on volume, toxicity or the water it reaches; the rest are minors. An individual permit is written for one operation, while general permit coverage applies a statewide permit to a site that qualifies for it.
By what is permitted in Maine
- Biosolids75
- Combined sewer overflows3
- Industrial pretreatment11
- Industrial stormwater348
- Small municipal storm sewer systems8
- Publicly owned treatment works116
By city
- PORTLAND32
- ROCKLAND20
- BIDDEFORD17
- WESTBROOK16
- BANGOR15
- BRUNSWICK13
- AUBURN12
- AUGUSTA12
- PRESQUE ISLE12
- SOUTH PORTLAND12
- WATERVILLE11
- LEWISTON10
- OLD TOWN10
- SCARBOROUGH10
- ELIOT9
- BAILEYVILLE8
- GARDINER8
- GORHAM8
- KITTERY8
- NORTH BERWICK8
- SANFORD8
- BATH7
- ELLSWORTH7
- SACO7
- SKOWHEGAN7
- BAR HARBOR6
- CARIBOU6
- FORT FAIRFIELD6
- HERMON6
- HOULTON6
- MACHIAS6
- MILLINOCKET6
- NORRIDGEWOCK6
- ORONO6
- SOUTHWEST HARBOR6
- BELFAST5
- BERWICK5
- BOOTHBAY HARBOR5
- BREWER5
- BUCKSPORT5
- CHERRYFIELD5
- EAST MILLINOCKET5
- HAMPDEN5
- JAY5
- LISBON5
- MEXICO5
- RUMFORD5
- UNKNOWN5
- YARMOUTH5
- YORK5
- CALAIS4
- CAPE ELIZABETH4
- CHESTER4
- DOVER-FOXCROFT4
- EAST BOOTHBAY4
- FREEPORT4
- FRENCHVILLE4
- GUILFORD4
- HARTLAND4
- MADAWASKA4
- MARS HILL4
- NEWPORT4
- OAKLAND4
- OLD ORCHARD BEACH4
- ORRINGTON4
- PITTSFIELD4
- ROCKPORT4
- SABATTUS4
- TOPSHAM4
- WELLS4
- WINDHAM4
- WISCASSET4
- BEALS3
- BELGRADE3
- BETHEL3
- BRIDGTON3
- CHELSEA3
- CLINTON3
- CUTLER3
- FARMINGTON3
- FORT KENT3
- HANCOCK3
- HARPSWELL3
- JONESPORT3
- KENNEBUNK3
- KENNEBUNKPORT3
- LIMESTONE3
- LIVERMORE FALLS3
- MADISON3
- MECHANIC FALLS3
- NAPLES3
- NEW VINEYARD3
- OGUNQUIT3
- ORLAND3
- PERRY3
- RANGELEY3
- RICHMOND3
- SOUTH BERWICK3
- THOMASTON3
- TRENTON3
- TURNER3
- VAN BUREN3
- WASHBURN3
- WEST BATH3
- WINSLOW3
- WINTER HARBOR3
Permits
Major dischargers first. Not every permit in Maine is listed here.
| Permit holder | NPDES ID | City | Program | Discharger | Receiving water |
|---|---|---|---|---|---|
| BAILEYVILLE WWTF | ME0101320 | BAILEYVILLE | Publicly owned treatment works | Major | St Croix River |
| BANGOR WWTF | ME0100781 | BANGOR | Publicly owned treatment works | Major | Penobscot River |
| BATH WWTF | ME0100021 | BATH | Publicly owned treatment works | Major | Kennebec River |
| BELFAST WWTF | ME0101532 | BELFAST | Publicly owned treatment works | Major | Belfast Harbor |
| BERWICK WWTF | ME0101397 | BERWICK | Publicly owned treatment works | Major | Salmon Falls River |
| BIDDEFORD WWTF | ME0100048 | BIDDEFORD | Publicly owned treatment works | Major | Saco River |
| BOOTHBAY HARBOR WWTF | ME0100064 | BOOTHBAY HARBOR | Publicly owned treatment works | Major | Boothbay Harbor |
| BREWER WWTF | ME0100072 | BREWER | Publicly owned treatment works | Major | Penobscot River |
| BRUNSWICK S D WWTF | ME0100102 | BRUNSWICK | Publicly owned treatment works | Major | Androscoggin River |
| BUCKSPORT MILL LLC | ME0002160 | BUCKSPORT | Major | Penobscot River | |
| CALAIS WWTF | ME0100129 | CALAIS | Publicly owned treatment works | Major | St Croix River |
| CARIBOU U D WWTF | ME0100145 | CARIBOU | Publicly owned treatment works | Major | Aroostook River |
| CASCO BAY ENERGY COMPANY LLC | ME0036188 | VEAZIE | Major | Penobscot River | |
| EAST END WWTF | ME0102075 | PORTLAND | Publicly owned treatment works | Major | Casco Bay |
| EAST MILLINOCKET TOWN OF | ME0000175 | EAST MILLINOCKET | Major | West Branch Penobscot River | |
| FARMINGTON WWTF | ME0101249 | FARMINGTON | Publicly owned treatment works | Major | Sandy River |
| FORT FAIRFIELD WWTF | ME0100226 | FORT FAIRFIELD | Publicly owned treatment works | Major | Aroostook River |
| FORT KENT WWTF | ME0102369 | FORT KENT | Publicly owned treatment works | Major | St John River |
| GARDINER WWTF | ME0101702 | GARDINER | Publicly owned treatment works | Major | Kennebec River |
| GREATER AUGUSTA UTILITY DISTRICT | ME0100013 | AUGUSTA | Publicly owned treatment works | Major | Kennebec River |
| GUILFORD-SANGERVILLE SD WWTF | ME0102032 | GUILFORD | Publicly owned treatment works | Major | Piscataquis River |
| HARTLAND WWTF | ME0101443 | HARTLAND | Publicly owned treatment works | Major | West Branch Sebasticook River |
| HOULTON WATER COMPANY WWTF | ME0101290 | HOULTON | Publicly owned treatment works | Major | Meduxnekeag River |
| JAYCO, LLC | ME0001937 | JAY | Major | Androscoggin River | |
| KENNEBEC STD WWTF | ME0100854 | WATERVILLE | Publicly owned treatment works | Major | Kennebec River |
| KENNEBUNK WWTF | ME0100935 | KENNEBUNK | Publicly owned treatment works | Major | Mousam River |
| KENNEBUNKPORT WWTF | ME0101184 | KENNEBUNKPORT | Publicly owned treatment works | Major | Kennebunk River |
| KITTERY WWTF | ME0100285 | KITTERY | Publicly owned treatment works | Major | Piscataqua River |
| LEDVANCE LLC | ME0002381 | WALDOBORO | Major | Medomak River Estuary | |
| LINCOLN WWTF | ME0101796 | LINCOLN | Publicly owned treatment works | Major | Penobscot River |
| LISBON WWTF | ME0100307 | LISBON | Publicly owned treatment works | Major | Androscoggin River |
| LIVERMORE FALLS WWTF | ME0100315 | LIVERMORE FALLS | Publicly owned treatment works | Major | Androscoggin River |
| MACHIAS WWTF | ME0100323 | MACHIAS | Publicly owned treatment works | Major | Machias River |
| MECHANIC FALLS WWTF | ME0100391 | MECHANIC FALLS | Publicly owned treatment works | Major | Little Androscoggin River |
| MILLINOCKET WWTF | ME0100803 | MILLINOCKET | Publicly owned treatment works | Major | West Branch Penobscot River |
| ND OTM LLC | ME0002020 | OLD TOWN | Major | Penobscot River | |
| ND PAPER INC- RUMFORD DIVISION | ME0002054 | RUMFORD | Major | Androscoggin River | |
| NORWAY WWTF | ME0100455 | NORWAY | Publicly owned treatment works | Major | Little Androscoggin River |
| OGUNQUIT SEWER DISTRICT WWTF | ME0100986 | OGUNQUIT | Publicly owned treatment works | Major | Atlantic Ocean |
| OLD TOWN WWTF | ME0100471 | OLD TOWN | Publicly owned treatment works | Major | Penobscot River |