COUNTY WATER-SYSTEM LEDGER
Maui, Hawaii
EPA’s September 2026 export lists 9 active community water systems serving Maui, Hawaii, with 1 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Maui, Hawaii
EPA associates 9 covered systems with Maui, Hawaii; their reported population-served values total 154,754 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| WailukuHI0000212 | 74,511 | Surface water | No current violation flagged |
| MakawaoHI0000213 | 29,868 | Surface water | No current violation flagged |
| LahainaHI0000214 | 20,065 | Surface water | No current violation flagged |
| KaanapaliHI0000205 | 8,000 | Ground water | No current violation flagged |
| Upper KulaHI0000215 | 7,686 | Surface water | No current violation flagged |
| KapaluaHI0000204 | 4,200 | Ground water | No current violation flagged |
| KaunakakaiHI0000234 | 3,702 | Ground water | No current violation flagged |
| Lower KulaHI0000247 | 3,522 | Surface water | No current violation flagged |
| Lanai CityHI0000237 | 3,200 | Ground water | Current monitoring/reporting flag |
02 / SOURCE MIX
Primary water sources for Maui, Hawaii
EPA classifies 9 systems serving Maui, Hawaii across 2 primary-source categories; Surface water is the largest category with 5 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.