City and town drinking water records

Water systems serving Ewa Gentry, HI

2 community water systems have a mapped service area in Ewa Gentry, HI. Waipahu-Ewa-Waianae covers 96% of the area inside Ewa Gentry's Census boundary and reports serving 217,479 people in all.

None of them had a health-based violation in the last 10 years.

2 rely mainly on groundwater, counting water bought from other systems.

Their lead service line inventories list no lead lines, no galvanized lines that must be replaced and no lines of unknown material.

Community water systems: 2
Systems with a health-based violation, last 10 years: 0
Systems with one unresolved: 0
Lead service lines in inventories: 0

Water systems serving Ewa Gentry

2 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Waipahu-Ewa-Waianae	Covers 96% of Ewa Gentry	217,479	Groundwater	0	0	0
Marine Corps Base Hawaii	Mapped area inside Ewa Gentry	16,300	Purchased groundwater	0	0	0

Other cities and towns in Honolulu County

47 places

Back to Honolulu County, HI

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations