Water quality in Helemano, Hawaii
Helemano 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
Other community water systems in Honolulu County
29 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Poamoho Wahiawa |
25 | 0 | 2.5 mi | |
| Wahiawa |
23,348 | 0 | 2.9 mi | |
| Schofield Barracks |
37,920 | 0 | 4.0 mi | |
| Mililani Mililani Bws |
50,573 | 0 | 4.4 mi | |
| Kunia Village Wahiawa |
650 | 0 | 5.9 mi | |
| Aliamanu Salt Lake |
6,406 | 1 | 6.0 mi | |
| Waialua Sugar Pump 2 Waialua-haleiwa |
400 | 0 | 6.9 mi | |
| Waialua-Haleiwa Waialua-haleiwa |
9,996 | 0 | 7.2 mi | |
| Waipio Heights Waipio |
11,516 | 0 | 8.0 mi | |
| Waialee-Sunset Beach Sunset Beach |
4,916 | 0 | 8.1 mi | |
| Joint Base Pearl Harbor-Hickam Pearl Harbor |
65,230 | 1 | 8.8 mi | |
| Laie Water Company Laie |
5,577 | 0 | 9.6 mi | |
| Dillingham Airfield Mokuleia |
1,800 | 0 | 10.2 mi | |
| Waiawa Correctional Facility Waipahu |
444 | 0 | 10.5 mi | |
| Kahuku Kahuku |
2,730 | 0 | 10.5 mi | |
| Kahuku Air Base Kahuku Air Base |
75 | 0 | 11.1 mi | |
| Waipahu-Ewa-Waianae Waipahu-ewa-waianae |
217,479 | 0 | 11.5 mi | |
| Marine Corps Base Hawaii Kaneohe |
16,300 | 1 | 14.4 mi | |
| Tripler Army Medical Cntr Moanalua |
5,555 | 0 | 14.5 mi | |
| Barbers Point Waipahu-ewa-waianae |
5,256 | 0 | 15.1 mi | |
| Fort Shafter |
7,067 | 0 | 16.2 mi | |
| Camp Stover Wahiawa |
595 | 0 | 17.2 mi | |
| Hnl-Windward-Pearl Harbor Honolulu-windward-pearlharbor |
631,389 | 0 | 18.1 mi | |
| Woodlands at Nuuanu Honolulu |
48 | 0 | 1199.0 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 |
|---|---|---|---|---|
|
Mililani Memorial Park Mililani Bws |
100 | 0 | 0 | |
|
Waimano Ridge Pearlridge |
545 | 0 | 0 | |
|
The Queen's Medical Center West Oahu Kunia |
800 | 0 | 0 | |
|
Navmag Lualualei Waianae |
114 | 0 | 0 | |
|
Palehua Solar Observatory Makakilo |
50 | 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 Helemano 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.