NPDES discharge permits — HI
40 active individual permits with limits in EPA's file of 2026-09-19.
- Agribusiness Development Corporation/County of Kauai HI0021952
- Aloun Kauai Farming LLC HI0021654
- Ameron HC&D, Ltd. HI0020796
- Aqua Engineers, Inc. HI0110141 · major
- City and County of Honolulu HI0020117 · major
- City and County of Honolulu HI0021296 · major
- City and County of Honolulu, Board of Water Supply HI0021950
- City and County of Honolulu, Department of Environmental Services HI0021953 · major
- City and County of Honolulu, Department of Environmental Services HI0021954
- County of Hawaii HI0020770
- County of Hawaii HI0021113
- County of Hawaii HI0021377 · major
- County of Kauai HI0020257 · major
- County of Maui HI0021661
- County of Maui HI0021848
- County of Maui HI0021946
- Downtown Block 4 LLC HI0021768
- HONOLULU MARINE LLC HI0021939
- Hawaii-American Water HI0020303 · major
- Hawaiian Cement HI0021951
- Hawaiian Cement - Halawa Quarry HI0000558
- Hawaiian Electric Company, Inc. HI0000019 · major
- Hawaiian Electric Company, Inc. HI0000604 · major
- JOINT BASE PEARL HARBOR-HICKAM WASTEWATER TREATMENT PLANT HI0110086 · major
- Kahala Hotel & Resort HI0021942
- Kaneohe Yacht Club HIS000556
- Kauai Island Utility Cooperative HI0000353 · major
- Keahole Point Fish LLC HI0021825
- Marisco Ltd. HI0021893
- Maui Electric Company, Limited HI0000094 · major
- Maui Ocean Center, Inc. HI0021504
- Steven Loui HI0021878
- U.S. Department of the Marine Corps HI0110078 · major
- U.S. Department of the Navy HI0110230
- U.S. Department of the Navy HI1120801
- U.S. Marine Corps HIS000007
- University of Hawaii HI0020630
- University of Hawaii at Manoa HI0021644
- Waiahi Water Company, LLC HI0021894
- Yacht Harbor Towers Association of Unit Owners HI0020346
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states