Water quality in Kona, Hawaii
Kona is in Hawaii County. 39 active public water systems serve the county; 3 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Hawaii County
36 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Napuu Water Inc. Puuwaawaa Ranch Dho |
468 | 0 | 10.2 mi | |
| Waikoloa Waikoloa (dho) |
12,100 | 0 | 14.5 mi | |
| Lalamilo Lalamilo |
1,895 | 0 | 16.3 mi | |
| South Kohala South Kohala |
9,612 | 1 | 17.0 mi | |
| Kaupulehu Kona |
1,945 | 0 | 20.1 mi | |
| Kona Water Service Company Kona |
260 | 0 | 20.6 mi | |
| Kawaihae Unit #1 Kawaihae |
193 | 0 | 21.1 mi | |
| North Kona North Kona |
29,581 | 1 | 21.8 mi | |
| Kohala Ranch Water Co. Kohala Joint Venture |
850 | 0 | 22.6 mi | |
| Haina Haina |
4,563 | 0 | 23.8 mi | |
| South Kona South Kona |
6,512 | 0 | 24.2 mi | |
| Kukuihaele Kukuihaele |
483 | 0 | 24.2 mi | |
| Paauilo Paauilo |
716 | 0 | 26.8 mi | |
| Niulii Niulii |
254 | 0 | 29.8 mi | |
| Ookala (dws) Ookala |
264 | 0 | 30.2 mi | |
| Laupahoehoe-Kapehu Laupahoehoe |
1,169 | 0 | 31.4 mi | |
| North Kohala North Kohala |
4,933 | 0 | 31.9 mi | |
| Honomu Honomu |
645 | 0 | 36.1 mi | |
| Hakalau-Wailea Hakalau-wailea |
402 | 0 | 36.5 mi | |
| Pepeekeo Pepeekeo |
1,450 | 0 | 37.4 mi | |
| Pepeekeo Water Association Pepeekeo |
60 | 0 | 37.5 mi | |
| Hawaii Volcanoes Nat.park Hvnp (dho) |
4,201 | 0 | 37.7 mi | |
| Papaikou Papaikou |
2,203 | 0 | 37.7 mi | |
| Hilo Hilo |
39,477 | 0 | 38.5 mi | |
| Hawaiian Ocean View Estates Kona |
1,000 | 0 | 40.7 mi |
Non-community systems in Hawaii County (2: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
New Moon Foundation Kapaau |
80 | 0 | 0 | |
|
Kilauea Military Camp Kilauea Volcano |
220 | 0 | 0 |
About this data
Water systems are matched to Hawaii County, nearest to Kona first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Hawaii records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.