EPA · discharge permits by state

Discharge permits in Hawaii

2,939Current permits
19Major dischargers
156Individual 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 Hawaii

By city

Permits

Major dischargers first. Not every permit in Hawaii is listed here.

Permit holder	NPDES ID	City	Program	Discharger	Receiving water
C&CH HONOULIULI WWTP	HI0020877	EWA BEACH	Publicly owned treatment works	Major	PACIFIC OCEAN
C&CH KAILUA REGIONAL WWTP	HI0021296	HONOLULU COUNTY	Publicly owned treatment works	Major	PACIFIC OCEAN
C&CH MUNICIPAL SEPARATE STORM SEWER SYSTEM	HIS000002	KAPOLEI	Large municipal storm sewer systems	Major	Kaloi Gulch
C&CH SAND ISLAND WWTP	HI0020117	HONOLULU	Publicly owned treatment works	Major	PACIFIC OCEAN
C&CH WAIANAE WWTP	HI0021953	WAIANAE	Publicly owned treatment works	Major
COUNTY OF KAUAI WAILUA WWTP	HI0020257	WAILUA	Publicly owned treatment works	Major	PACIFIC OCEANOFFSHORE WAILUA
DOT-HIGHWAYS MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4)	HIS000001	HONOLULU	Large municipal storm sewer systems	Major	Waimanalo Gulch
HAWAII COUNTY HILO WWTP	HI0021377	HILO	Publicly owned treatment works	Major	HILO BAY
HECO WAIAU GENERATING STATION	HI0000604	PEARL CITY	Industrial stormwater	Major	PEARL HARBOR, PEARL HARBOR, EAST LOCH
HONOLULU GENERATING STATION	HI0000027	HONOLULU	Industrial stormwater	Major	HONOLULU HARBOR
JOINT BASE PEARL HARBOR-HICKAM WASTEWATER TREATMENT PLANT	HI0110086	PEARL HARBOR		Major	PACIFIC OCEAN
KAHE GENERATING STATION (1)	HI0000019	KAPOLEI	Industrial stormwater	Major	PACIFIC OCEAN
KAHULUI GENERATING STATION	HI0000094	KAHULUI		Major	PACIFIC OCEAN
MARINE CORPS BASE HAWAII KANEOHE BAY WATER RECLAMATION FACILITY	HI0110078	KANEOHE		Major	PACIFIC OCEAN
PAR HAWAII REFINERY	HI0000329	KAPOLEI BUSINESS PARK		Major	PACIFIC OCEAN
PEARL HARBOR NAVAL SHIPYARD & INTERMEDIATE MAINTENANCE FACILITY DRYDOCKS 1-4	HI0110230	HONOLULU		Major	PEARL HARBOR
PORT ALLEN GENERATING STATION	HI0000353	LIHUE		Major	HANAPEPE BAY, PORT ALLEN BAY, PORT ALLEN BAY, HANA
SCHOFIELD BARRACKS WASTEWATER TREATMENT PLANT	HI0110141	WAHIAWA		Major	Kuakonahua and Waikele Streams
SHIPMAN GENERATING STATION	HI0000264	UNKNOWN		Major	WAILOA RIVER BASIN
'ILIMA AT LEIHANO	HIF009623	KAPOLEI	Construction stormwater	Minor	Kaloi Gulch
129 IAKO PLACE WAREHOUSE	HI23BH233	UNKNOWN		Minor
133 KAIULANI AVENUE	HIF014811	UNKNOWN		Minor	Ala Wai Canal
133 KAIULANI AVENUE	HIF012310	UNKNOWN		Minor	ALA WAI CANAL
134 NAKOLO PLACE	HI19BF831	UNKNOWN		Minor	AHUA LAGOON
1807 HONOLULU - AHUA STREET SITE	HI18BF538	HONOLULU		Minor	MOANALUA STREAM
2 G GROUP 422-105/107	HI21BG475	UNKNOWN		Minor	Moanalua Stream
21 HANSEN ROAD	HIF015016	KAHULUI		Minor	Kalialinui Gulch
35 OLAKINO PLACE	HIF014369	KULA		Minor	Kulanihakoi Gulch
3702 LOWER HONOAPIILANI, LLC	HIF001481	LAHAINA	Construction stormwater	Minor	COUNTY OF MAUI, LOWER HONOAPIILANI DRAINAGE SYSTEM
3M HONOLULU	HI02BB296	HONOLULU		Minor	PEARL HARBOR
422-107	HI19BF994	UNKNOWN		Minor	KEEP LAGOON
801 SOUTH STREET	HIF009869	HONOLULU	Construction stormwater	Minor	Waimanalo Gulch
89 KUHEA ST OGG HANGAR 409, UNIT 107	HI22BG965	UNKNOWN		Minor
89-25 LUALUALEI HOMESTEAD ROAD	HIF009843	UNKNOWN	Construction stormwater	Minor	POKAI BAY (PACIFIC OCEAN)
90 NAKOLO PLACE - PACI MAINTENACE FACILITY / HANGAR	HI25BH750	HONOLULU		Minor	Moanalua Stream
900 GREEN VALLEY	HIF010982	MILILANI	Construction stormwater	Minor	WAIKAKALUA STREAM
900 GREEN VALLEY MASS GRADING	HIF014587	UNKNOWN		Minor	Waikele Stream
94-1100 KUNIA ROAD LOT 82	HIF014885	WAIPAHU		Minor
A&B KOMOHANA INDUSTRIAL WAREHOUSE	HIF014614	KAPOLEI		Minor	Kaloi Gulch
AA GSE SHOP	HI22BG904	HONOLULU		Minor	Moanalua Stream