Honolulu County, HI
The federal environmental record for Honolulu County (population 989,408): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
4
Superfund NPL sites
66
federal cleanup sites
2
PFAS-detecting water systems
22
TRI facilities
61
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Del Monte Corp. (Oahu Plantation) | Honolulu County | on the NPL | 12/16/1994 |
| Naval Computer and Telecommunications Area Master Station Eastern Pacific | Oahu | on the NPL | 05/31/1994 |
| Pearl Harbor Naval Complex | Pearl Harbor | on the NPL | 10/14/1992 |
| Schofield Barracks (USARMY) | Oahu | deleted | 08/30/1990 |
Drinking water: PFAS testing
Public water systems serving Honolulu with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| HNL-WINDWARD-PEARL HARBOR HI0000331 | PFHxS: 3 ng/L | detected |
| WAIPAHU-EWA-WAIANAE HI0000335 | PFPeA: 3.3 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
22 facilities in Honolulu filed TRI reports for 2024, totalling 1.7M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| HAWAIIAN ELECTRIC CO INC KAHE GENERATING STATION | KAPOLEI | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia | 691k lb |
| JOINT BASE PEARL HARBOR-HICKAM HAWAII | JBPHH | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Xylene (mixed isomers) | 390k lb |
| HAWAIIAN ELECTRIC CO INC WAIAU GENERATING STATION | PEARL CITY | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia | 232k lb |
| PAR HAWAII REFINING LLC | KAPOLEI | n-Hexane, Ammonia | 165k lb |
| US MARINE CORPS BASE HAWAII KANEOHE BAY | MCBH KANEOHE BAY | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead | 111k lb |
| BALL METAL BEVERAGE CONTAINER CORP | KAPOLEI | Certain glycol ethers, n-Butyl alcohol | 54k lb |
| U.S. ARMY SCHOFIELD BARRACKS - RANGE FACILITY | SCHOFIELD BARRACKS | Copper, Lead And Lead Compounds | 34k lb |
| US MARINE CORPS BASE HAWAII PUULOA TRAINING FACILITY | EWA BEACH | Lead, Copper | 26k lb |
| HFFC SAND ISLAND FUEL TERMINAL | HONOLULU | Xylene (mixed isomers), 1,2,4-Trimethylbenzene | 6k lb |
| HAWAIIAN ELECTRIC CAMPBELL INDUSTRIAL PARK GENERATING STA. | KAPOLEI | Polycyclic aromatic compounds, Naphthalene | 4k lb |
| IES DOWNSTREAM LLC - KAPOLEI TERMINAL | KAPOLEI | Toluene, n-Hexane | 4k lb |
| HFFC AIRPORT FUEL FARM | HONOLULU | Xylene (mixed isomers), 1,2,4-Trimethylbenzene | 3k lb |
| ALOHA PETROLEUM BARBERS POINT TERMINAL | KAPOLEI | Toluene, Benzene | 3k lb |
| IES DOWNSTREAM LLC - HONOLULU TERMINAL MARINE | HONOLULU | Toluene, n-Hexane | 2k lb |
| ALOHA PETROLEUM HONOLULU TERMINAL | HONOLULU | Toluene, Benzene | 1k lb |
| KALAELOA COGENERATION PLANT | KAPOLEI | Lead compounds, Naphthalene | 459 lb |
| HAWAIIAN ELECTRIC CO INC SCHOFIELD GENERATING STATION | WAHIAWA | Ammonia, Naphthalene | 243 lb |
| IES DOWNSTREAM LLC - HONOLULU TERMINAL TRANSPORTATION | HONOLULU | Toluene, 1,2,4-Trimethylbenzene | 196 lb |
| PAR WEST REFINERY | KAPOLEI | Polychlorinated biphenyls | 76 lb |
| HONOLULU WOOD TREATING LLC | KAPOLEI | - | 0 lb |
| CMC STEEL FABRICATORS INC. D.B.A. ASSOCIATED STEEL WORKERS | KAPOLEI | - | 0 lb |
| BOMAT - CAMPELL INDUSTRIAL PARK (CIP) | KAPOLEI | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 1,567 tank facilities in Honolulu: 774 tanks in service and 3,337 closed. 928 fuel releases are on record, of which 61 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Honolulu as Zone 3, the lowest predicted indoor radon (under 2 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Honolulu, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BARBERS POINT NAVAL AIR STATIONBARBERS POINT
- BARBERS POINT NAVAL AIR STATIONBARBERS POINT
- BELLOWS AIR FORCE STATIONWAIMANALO
- BREWER CHEM CORPEWA BEACH
- CHEMWOOD TREATMENT CO INCEWA BEACH
- CONOCOPHILLIPS CO HONOLULU TERMINALHONOLULU
- DEFENSE REUTILIZATION & MKTG REG-PACPEARL CITY
- DEL MONTE CORP. (OAHU PLANTATION)KUNIA
- DLA DISPOSITION SERVICESKAPOLEI
- FACTORY STREET SITEHONOLULU
- FARRINGTON HIGH SCHOOL FIRING RANGEHONOLULU
- FORT KAMEHAMEHA DSPL SITEHICKAM AFB
- FORT SHAFTERFORT SHAFTER
- HAKIMO ROAD AKA BOTELHOWAIANAE
- HAWAII STAGING AND LIGHTINGHONOLULU
- HICKAM AIR FORCE BASEHONOLULU
- HONOLULU INTL AIRPORTHONOLULU
- HONOLULU SKEET CLUBKAILUA
- HOWLAND ISLAND NATIONAL WILDLIFE REFUGEHOWLAND
- JOHN DRYER RESIDENCEHONOLULU
- JOINT BASE PEARL HARBOR-HICKAM HAWAIIJBPHH
- KAALA AFSHONOLULU
- KAENA PT SAT TRACKING STAWAIANAE
- KAPAA LDFLKAILUA
- KAPALAMA MILITARY RESERVATIONWAIANAE
- KEEHI LAGOON CANOE FACILITYHONOLULU
- KIPAPA FUEL STORAGE ANNEXMILILANI
- MAIPALAOA ROADWAIANAE
- MAKUA MILITARY RESERVATION ORDN DISPWAIANAE
- MARINE CORPS BASE HAWAI'IKANEOHE
- NAVAL MAGAZINE LUALUALEIEWA BEACH
- NAVAL SUBMARINE BASEPEARL HARBOR
- NAVY RED HILL DRINKING WATER EMERGENCYHONOLULU
- NCTAMS EASTPAC - WAHIAWAWAHIAWA
- NRTF LAULUAFEIWAHIAWA
- OPANAWAHIAWA
- PEARL CITY FUEL ANNEXPEARL CITY
- PEARL HARBOR NAVAL COMPLEXPEARL HARBOR
- PEARL HARBOR NAVAL STATIONPEARL HARBOR
- PEARL HARBOR NAVAL SUPPLY CTRPEARL HARBOR
- PEARL HARBOR NAVY PUBLIC WORKS CTRPEARL HARBOR
- PEARL HARBOR PWC MAKALAPA PESTICIDE PITPEARL HARBOR
- PUKOLOA WOOD TREATING SITEHONOLULU
- PUNAMANO AIR FORCE STATIONKAHUKU
- PUULOA FIRING RANGEEWA CITY
- SCHOFIELD BARRACKS SAN LDFLWAHIAWA
- SHORE INTERMEDIATE MAINTENANCE ACTIVITYPEARL HARBOR
- TRIPLER ARMY MEDICAL CENTERTRIPLER AMC
- TSA AT HONOLULU INTERNATIONAL AIRPORTHONOLULU
- U S NAVY EXCHANGE LAUNDRY FACILITYPEARL HARBOR
- U.S. COAST GUARD OMEGA STATIONKANEOHE
- USAF PALEHUA SOLAR OBSERVATORYEWA BEACH
- USAF WAIKAKALAUA FUEL STORAGE ANNEXWHEELER ARMY AIRFIELD
- USCG BASE HONOLULUHONOLULU
- USMC CAMP H M SMITHCAMP H M SMITH
- USN FLEET TRAINING GROUPPEARL HARBOR
- VERMICULITE OF HAWAII, INC.HONOLULU
- WAIALUA SUGAR MILLWAIALUA
- WAIANAE PERC AND PCBS SITEWAIANAE
- WAIANAE VALLEY ROAD RESIDENTIAL LEAD SITEWAIANAE
- WAIAWA GULCHPEARL CITY
- WAIAWA SHAFTOAHU
- WAIMANALO GROUNDWATER INVESTIGATIONWAIMANALO
- WAIPAHU ASH DUMPWAIPAHU
- WAIPAHU WELLSOAHU
- WHEELER AIR FORCE BASEWHEELER ARMY AIRFIELD