Water quality in Kapaa, Hawaii
Kapaa is in Kauai County. 19 active public water systems serve the county; 0 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Kauai County
15 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Kealia Kealia (dho) |
260 | 0 | 3.1 mi | |
| Anahola Farm Lots Anahola Farm Lots (dho) |
385 | 0 | 4.3 mi | |
| Anahola Anahola |
2,473 | 0 | 4.4 mi | |
| Moloaa Irrigation Cooperative Anahola |
100 | 0 | 5.8 mi | |
| Kilauea Kilauea (dow) |
3,420 | 0 | 9.0 mi | |
| Princeville Princeville (dho) |
6,911 | 0 | 11.3 mi | |
| Hanalei Hanalei (dow) |
500 | 0 | 12.4 mi | |
| Kalaheo-Koloa Kalaheo |
12,660 | 0 | 15.3 mi | |
| Haena-Wainiha Haena-wainiha |
833 | 0 | 15.6 mi | |
| Hanapepe-Eleele Hanapepe-eleele (dow) |
5,592 | 0 | 19.3 mi | |
| Gay & Robinson Kaumakani |
1,271 | 0 | 21.0 mi | |
| Kekaha-Waimea Kekaha (dow) |
5,998 | 0 | 24.2 mi | |
| Pacific Missile Range Facility Pmrf Housing (dho) |
1,200 | 0 | 25.3 mi | |
| Kahili Mountain Park Kahili Mountain Park |
175 | 0 | — | |
| Anini Hanalei (dow) |
174 | 0 | — |
Non-community systems in Kauai County (3: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Koolau Ranch Kilauea (dow) |
60 | 0 | 0 | |
|
Kokee State Park Kokee State Park |
2,000 | 0 | 0 | |
|
Polihale State Park Polihale State Park |
300 | 0 | 0 |
About this data
Water systems are matched to Kauai County, nearest to Kapaa 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.
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.