Hawaii tap water quality
116 community water systems
11.3%
exceed lead action level
(13/115 systems)
(13/115 systems)
0%
PFOA/PFOS detected
(0/44 systems)
(0/44 systems)
Largest water systems
Lead is the LCR 90th-percentile result; a value above 0.015 mg/L exceeds the
EPA action level. “—” means no lead sample is on file for that system.
| System | City | Population | Lead (p90) |
|---|---|---|---|
| HNL-WINDWARD-PEARL HARBOR | HONOLULU-WINDWARD-PEARLHARBOR | 631,389 | 0.0015 mg/L |
| WAIPAHU-EWA-WAIANAE | WAIPAHU-EWA-WAIANAE | 217,479 | 0.0020 mg/L |
| WAILUKU | WAILUKU | 74,511 | 0.0062 mg/L |
| JOINT BASE PEARL HARBOR-HICKAM | PEARL HARBOR | 65,230 | 0.0047 mg/L |
| MILILANI | MILILANI BWS | 50,573 | 0.0020 mg/L |
| HILO | HILO | 39,477 | 0.0001 mg/L |
| SCHOFIELD BARRACKS | 37,920 | 0.0250 mg/L | |
| LIHUE-KAPAA | LIHUE-KAPAA | 34,854 | 0.0000 mg/L |
| MAKAWAO | MAKAWAO | 29,868 | 0.0380 mg/L |
| NORTH KONA | NORTH KONA | 29,581 | 0.0001 mg/L |
| WAHIAWA | 23,348 | 0.0026 mg/L | |
| LAHAINA | LAHAINA | 20,065 | 0.0016 mg/L |
| MARINE CORPS BASE HAWAII | KANEOHE | 16,300 | 0.0054 mg/L |
| KALAHEO-KOLOA | KALAHEO | 12,660 | 0.0000 mg/L |
| WAIKOLOA | WAIKOLOA (DHO) | 12,100 | 0.0001 mg/L |
| WAIPIO HEIGHTS | WAIPIO | 11,516 | 0.0017 mg/L |
| WAIALUA-HALEIWA | WAIALUA-HALEIWA | 9,996 | 0.0023 mg/L |
| SOUTH KOHALA | SOUTH KOHALA | 9,612 | 0.0202 mg/L |
| KAANAPALI | KAANAPALI (DHO) | 8,000 | 0.0024 mg/L |
| UPPER KULA | KULA | 7,686 | 0.0514 mg/L |
| FORT SHAFTER | 7,067 | 0.0025 mg/L | |
| PRINCEVILLE | PRINCEVILLE (DHO) | 6,911 | 0.0030 mg/L |
| SOUTH KONA | SOUTH KONA | 6,512 | 0.0001 mg/L |
| NCTAMS EASTPAC | WAHIAWA | 6,470 | 0.0038 mg/L |
| OLAA-MOUNTAIN VIEW | OLAA-MT.VIEW | 6,467 | 0.0001 mg/L |
| ALIAMANU | SALT LAKE | 6,406 | 0.0025 mg/L |
| KEKAHA-WAIMEA | KEKAHA (DOW) | 5,998 | 0.0005 mg/L |
| HANAPEPE-ELEELE | HANAPEPE-ELEELE (DOW) | 5,592 | 0.0000 mg/L |
| LAIE WATER COMPANY | LAIE | 5,577 | 0.0023 mg/L |
| TRIPLER ARMY MEDICAL CNTR | MOANALUA | 5,555 | 0.0018 mg/L |
| BARBERS POINT | WAIPAHU-EWA-WAIANAE | 5,256 | 0.0021 mg/L |
| NORTH KOHALA | NORTH KOHALA | 4,933 | 0.0000 mg/L |
| WAIALEE-SUNSET BEACH | SUNSET BEACH | 4,916 | 0.0025 mg/L |
| HAINA | HAINA | 4,563 | 0.0001 mg/L |
| HAWAII VOLCANOES NAT.PARK | HVNP (DHO) | 4,201 | 0.0180 mg/L |
| KAPALUA | KAPALUA (DHO) | 4,200 | 0.0290 mg/L |
| KAMEHAMEHA SCHOOLS | KAPALAMA | 4,000 | 0.0090 mg/L |
| KAUNAKAKAI | KAUNAKAKAI | 3,702 | 0.0056 mg/L |
| HAWAIIAN BEACHES | HAWAIIAN SHORES DHO | 3,546 | 0.0000 mg/L |
| LOWER KULA | KULA | 3,522 | 0.0202 mg/L |
| THE QUEEN'S MEDICAL CENTER | DOWNTOWN HONOLULU | 3,440 | 0.0000 mg/L |
| KILAUEA | KILAUEA (DOW) | 3,420 | 0.0001 mg/L |
| WAIOHINU-NAALEHU | WAIOHINU-NAALEHU | 2,948 | 0.0050 mg/L |
| KAHUKU | KAHUKU | 2,730 | 0.0008 mg/L |
| ANAHOLA | ANAHOLA | 2,473 | 0.0035 mg/L |
| HOOLEHUA | HOOLEHUA | 2,400 | 0.0035 mg/L |
| PAPAIKOU | PAPAIKOU | 2,203 | 0.0000 mg/L |
| KAUPULEHU | KONA | 1,945 | 0.0034 mg/L |
| LALAMILO | LALAMILO | 1,895 | 0.0050 mg/L |
| PAHOA | PAHOA | 1,885 | 0.0035 mg/L |
| DILLINGHAM AIRFIELD | MOKULEIA | 1,800 | 0.0035 mg/L |
| PEPEEKEO | PEPEEKEO | 1,450 | 0.0000 mg/L |
| HAWAIIAN SHORES | HAWAIIAN SHORES DHO | 1,360 | 0.0035 mg/L |
| HANA | HANA | 1,284 | 0.0040 mg/L |
| GAY & ROBINSON | KAUMAKANI | 1,271 | 0.0025 mg/L |
| PAHALA | PAHALA | 1,226 | 0.0050 mg/L |
| HALEAKALA NATIONAL PARK | KULA | 1,200 | 0.0035 mg/L |
| PACIFIC MISSILE RANGE FACILITY | PMRF HOUSING (DHO) | 1,200 | 0.0212 mg/L |
| LAUPAHOEHOE-KAPEHU | LAUPAHOEHOE | 1,169 | 0.0050 mg/L |
| UALAPUE | UALAPUE | 1,119 | 0.0210 mg/L |
| MAUNALOA-KALUAKOI | MAUNALOA, MOLOKAI | 1,000 | 0.0015 mg/L |
| HAWAIIAN OCEAN VIEW ESTATES | KONA | 1,000 | 0.0000 mg/L |
| KOHALA RANCH WATER CO. | KOHALA JOINT VENTURE | 850 | 0.0090 mg/L |
| HAENA-WAINIHA | HAENA-WAINIHA | 833 | 0.0025 mg/L |
| HANA WATER SYSTEMS - SOUTH | KEOLA HANA-HOTEL DHO | 816 | 0.0040 mg/L |
| PAAUILO | PAAUILO | 716 | 0.0050 mg/L |
| KUNIA VILLAGE | WAHIAWA | 650 | 0.0035 mg/L |
| HONOMU | HONOMU | 645 | 0.0010 mg/L |
| MAHANALUA NUI SUBDIVISON | MAHANALUA NUI | 606 | 0.0030 mg/L |
| CAMP STOVER | WAHIAWA | 595 | 0.0007 mg/L |
| KAWELA PLANTATION | KAWELA | 553 | 0.0035 mg/L |
| KUALAPUU | KUALAPUU | 500 | 0.0020 mg/L |
| HANALEI | HANALEI (DOW) | 500 | 0.0035 mg/L |
| KUKUIHAELE | KUKUIHAELE | 483 | 0.0030 mg/L |
| NAPUU WATER INC. | PUUWAAWAA RANCH DHO | 468 | 0.0035 mg/L |
| WAIAWA CORRECTIONAL FACILITY | WAIPAHU | 444 | 0.0039 mg/L |
| HAKALAU-WAILEA | HAKALAU-WAILEA | 402 | 0.0000 mg/L |
| WAIALUA SUGAR PUMP 2 | WAIALUA-HALEIWA | 400 | 0.0000 mg/L |
| ANAHOLA FARM LOTS | ANAHOLA FARM LOTS (DHO) | 385 | 0.0034 mg/L |
| KALAE | MAKENA | 360 | 0.0046 mg/L |
| WAIAHOLE | KAHANA VALLEY | 300 | 0.0035 mg/L |
| KALAPANA | KALAPANA (DWS) | 275 | 0.0050 mg/L |
| KEANAE | KEANAE (DWS) | 270 | 0.0041 mg/L |
| OOKALA (DWS) | OOKALA | 264 | 0.0050 mg/L |
| KEALIA | KEALIA (DHO) | 260 | 0.0042 mg/L |
| KONA WATER SERVICE COMPANY | KONA | 260 | 0.0055 mg/L |
| NIULII | NIULII | 254 | 0.0050 mg/L |
| KEOPU WATER ASSOCIATION | KONA | 250 | 0.0000 mg/L |
| PUNALU'U | PUNALUU (DHO) | 200 | 0.0035 mg/L |
| KAWAIHAE UNIT #1 | KAWAIHAE | 193 | 0.0050 mg/L |
| KAHILI MOUNTAIN PARK | KAHILI MOUNTAIN PARK | 175 | 0.0065 mg/L |
| ANINI | HANALEI (DOW) | 174 | 0.0035 mg/L |
| HANA WATER SYSTEMS - NORTH | KAELEKU AG PARK HANA | 160 | 0.0050 mg/L |
| NINOLE | NINOLE | 151 | 0.0050 mg/L |
| KAHAKULOA WATER CO. | KAHAKULOA HOMESTEAD | 150 | 0.0035 mg/L |
| KALAUPAPA NHP | KALAUPAPA | 110 | 0.0650 mg/L |
| NAHIKU | NAHIKU | 107 | 0.0040 mg/L |
| WAIKI'I RANCH | WAIKII RANCH (DHO) | 102 | 0.0035 mg/L |
| MAUNAOLU PLANTATION | HAIKU | 100 | 0.0040 mg/L |
| SHASTA CASCADE MOBILEHOME PARK | 100 | 0.0013 mg/L |