Water quality in Mahinahina, Hawaii
Mahinahina is in Maui County. 39 active public water systems serve the county; 5 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 Maui County
34 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Kaanapali Kaanapali (dho) |
8,000 | 0 | 2.9 mi | |
| Kapalua Kapalua (dho) |
4,200 | 0 | 3.9 mi | |
| Honokohau Lahaina |
42 | 0 | 5.0 mi | |
| Olowalu Olowalu |
100 | 0 | 6.4 mi | |
| Mahanalua Nui Subdivison Mahanalua Nui |
606 | 0 | 7.3 mi | |
| Kahakuloa Water Co. Kahakuloa Homestead |
150 | 0 | 7.7 mi | |
| Ualapue Ualapue |
1,119 | 0 | 13.0 mi | |
| Wailuku Wailuku |
74,511 | 0 | 14.9 mi | |
| Maui Highlands Kihei |
26 | 0 | 19.1 mi | |
| Lanai City Lanai |
3,200 | 3 | 19.4 mi | |
| Maunaolu Plantation Haiku |
100 | 0 | 21.1 mi | |
| Kawela Plantation Kawela |
553 | 0 | 21.1 mi | |
| Makawao Makawao |
29,868 | 0 | 22.8 mi | |
| Hoku'ula Water System Makawao |
1,000 | 0 | 23.0 mi | |
| Baldwin Ranch Estates Makawao |
32 | 0 | 23.5 mi | |
| West Kuiaha Meadows Haiku |
60 | 0 | 23.5 mi | |
| Kaunakakai Kaunakakai |
3,702 | 0 | 23.7 mi | |
| Lower Kula Kula |
3,522 | 0 | 24.0 mi | |
| Kula Nani Kula |
80 | 0 | 24.5 mi | |
| Hoolehua Hoolehua |
2,400 | 0 | 25.2 mi | |
| Upper Kula Kula |
7,686 | 0 | 25.9 mi | |
| Kalaupapa Nhp Kalaupapa |
110 | 1 | 26.5 mi | |
| Kalae Makena |
360 | 0 | 26.6 mi | |
| Kualapuu Kualapuu |
500 | 1 | 26.7 mi | |
| Haleakala National Park Kula |
1,200 | 0 | 26.8 mi |
Non-community systems in Maui County (4: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Maui Business Park Phase II Kahului |
63 | 0 | 0 | |
|
Consolidated Baseyards Waikapu |
90 | 0 | 0 | |
|
Pulehunui Water Association |
10 | 0 | 0 | |
|
Kipahulu Haleakala |
2,000 | 0 | 0 |
About this data
Water systems are matched to Maui County, nearest to Mahinahina 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.