Water quality in Waialua, Hawaii
Waialua is in Honolulu County. 38 active public water systems serve the county; 6 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 Honolulu County
29 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Waialua Sugar Pump 2 Waialua-haleiwa |
400 | 0 | 0.5 mi | |
| Dillingham Airfield Mokuleia |
1,800 | 0 | 3.4 mi | |
| Schofield Barracks |
37,920 | 0 | 6.3 mi | |
| Waialee-Sunset Beach Sunset Beach |
4,916 | 0 | 7.7 mi | |
| Nctams Eastpac Wahiawa |
6,470 | 0 | 8.0 mi | |
| Poamoho Wahiawa |
25 | 0 | 8.0 mi | |
| Wahiawa |
23,348 | 0 | 8.1 mi | |
| Kunia Village Wahiawa |
650 | 0 | 8.3 mi | |
| Aliamanu Salt Lake |
6,406 | 1 | 8.5 mi | |
| Mililani Mililani Bws |
50,573 | 0 | 10.2 mi | |
| Waipio Heights Waipio |
11,516 | 0 | 12.7 mi | |
| Waipahu-Ewa-Waianae Waipahu-ewa-waianae |
217,479 | 0 | 12.8 mi | |
| Kahuku Kahuku |
2,730 | 0 | 13.1 mi | |
| Laie Water Company Laie |
5,577 | 0 | 13.6 mi | |
| Kahuku Air Base Kahuku Air Base |
75 | 0 | 13.7 mi | |
| Waiawa Correctional Facility Waipahu |
444 | 0 | 14.4 mi | |
| Joint Base Pearl Harbor-Hickam Pearl Harbor |
65,230 | 1 | 14.4 mi | |
| Barbers Point Waipahu-ewa-waianae |
5,256 | 0 | 17.3 mi | |
| Marine Corps Base Hawaii Kaneohe |
16,300 | 1 | 17.7 mi | |
| Tripler Army Medical Cntr Moanalua |
5,555 | 0 | 20.4 mi | |
| Fort Shafter |
7,067 | 0 | 22.0 mi | |
| Camp Stover Wahiawa |
595 | 0 | 22.8 mi | |
| Hnl-Windward-Pearl Harbor Honolulu-windward-pearlharbor |
631,389 | 0 | 24.4 mi | |
| Woodlands at Nuuanu Honolulu |
48 | 0 | 1192.2 mi | |
| Kamehameha Schools Kapalama |
4,000 | 0 | — |
Non-community systems in Honolulu County (8: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Navmag Lualualei Waianae |
114 | 0 | 0 | |
|
Mililani Memorial Park Mililani Bws |
100 | 0 | 0 | |
|
Palehua Solar Observatory Makakilo |
50 | 0 | 0 | |
|
The Queen's Medical Center West Oahu Kunia |
800 | 0 | 0 | |
|
Waimano Ridge Pearlridge |
545 | 0 | 0 | |
|
ST Stephen's Diocesan Ctr Kaneohe |
45 | 1 | 0 | |
|
Punahou School Manoa |
4,000 | 0 | 0 | |
|
Sheraton Hotels |
2,830 | 1 | 0 |
About this data
Water systems are matched to Honolulu County, nearest to Waialua 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 or the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision 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.