Public Water Systems
137 active public water systems in HI, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Kawaihae Unit #1 | Kamuela, HI | 193 | 3 | - |
| Kahili Mountain Park | Koloa, HI | 175 | 82 | - |
| Anini | Lihue, HI | 174 | 4 | - |
| Hana Water Systems - North | Hana, HI | 160 | 12 | - |
| Ninole | Hilo, HI | 151 | 3 | - |
| Kahakuloa Water Co. | Wailuku, HI | 150 | 3 | - |
| Navmag Lualualei | Jbpph, HI | 114 | 16 | - |
| Kalaupapa Nhp | Kalaupapa, HI | 110 | 59 | - |
| Nahiku | Wailuku, HI | 107 | 65 | - |
| Waiki'i Ranch | Kamuela, HI | 102 | 0 | - |
| Olowalu | Kahului, HI | 100 | 155 | - |
| Maunaolu Plantation | Wailuku, HI | 100 | 0 | - |
| Mililani Memorial Park | Pearl City, HI | 100 | 278 | - |
| Dillingham Ranch | Beverly Hills, HI | 100 | 15 | - |
| Moloaa Irrigation Cooperative | Anahola, HI | 100 | 15 | - |
| Kailua | Puunene, HI | 90 | 88 | - |
| Consolidated Baseyards | Wailuku, HI | 90 | 24 | - |
| New Moon Foundation | Kamuela, HI | 80 | 0 | - |
| Kipu | Maunaloa, HI | 80 | 11 | - |
| Kula Nani | Wailuku, HI | 80 | 0 | - |
| Wood Valley | Pahala, HI | 75 | 0 | - |
| Kahuku Air Base | Kahuku, HI | 75 | 18 | - |
| Maui Business Park Phase II | Wailuku, HI | 63 | 0 | - |
| Pepeekeo Water Association | Hilo, HI | 60 | 3 | - |
| West Kuiaha Meadows | Wailuku, HI | 60 | 0 | - |
| Koolau Ranch | Kilauea, HI | 60 | 0 | - |
| Palehua Solar Observatory | Honolulu, HI | 50 | 24 | - |
| Woodlands at Nuuanu | Honolulu, HI | 48 | 0 | - |
| St Stephen's Diocesan Ctr | Honolulu, HI | 45 | 15 | - |
| Kipapa Acres C.p.r. | Aiea, HI | 43 | 82 | - |
| Honokohau | Wailuku, HI | 42 | 285 | - |
| Baldwin Ranch Estates | Pukalani, HI | 32 | 0 | - |
| Villa Rose | Wailuku, HI | 30 | 2 | - |
| Maui Highlands | Wailuku, HI | 26 | 0 | - |
| Poamoho | Honolulu, HI | 25 | 24 | - |
| Haiku Town Water Association, Inc. | Kahului, HI | 20 | 6 | - |
| Pulehunui Water Association | Wailuku, HI | 10 | 0 | - |
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