Water quality in Napili-Honokowai, Hawaii
Napili-Honokowai 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 |
|---|---|---|---|---|
| Kapalua Kapalua (dho) |
4,200 | 0 | 3.0 mi | |
| Kaanapali Kaanapali (dho) |
8,000 | 0 | 3.7 mi | |
| Honokohau Lahaina |
42 | 0 | 4.6 mi | |
| Olowalu Olowalu |
100 | 0 | 7.7 mi | |
| Kahakuloa Water Co. Kahakuloa Homestead |
150 | 0 | 8.2 mi | |
| Mahanalua Nui Subdivison Mahanalua Nui |
606 | 0 | 8.7 mi | |
| Ualapue Ualapue |
1,119 | 0 | 11.8 mi | |
| Wailuku Wailuku |
74,511 | 0 | 16.1 mi | |
| Lanai City Lanai |
3,200 | 3 | 19.6 mi | |
| Kawela Plantation Kawela |
553 | 0 | 20.2 mi | |
| Maui Highlands Kihei |
26 | 0 | 20.3 mi | |
| Maunaolu Plantation Haiku |
100 | 0 | 21.9 mi | |
| Kaunakakai Kaunakakai |
3,702 | 0 | 22.7 mi | |
| Makawao Makawao |
29,868 | 0 | 23.6 mi | |
| Hoku'ula Water System Makawao |
1,000 | 0 | 24.0 mi | |
| Hoolehua Hoolehua |
2,400 | 0 | 24.2 mi | |
| West Kuiaha Meadows Haiku |
60 | 0 | 24.2 mi | |
| Baldwin Ranch Estates Makawao |
32 | 0 | 24.5 mi | |
| Lower Kula Kula |
3,522 | 0 | 25.1 mi | |
| Kalaupapa Nhp Kalaupapa |
110 | 1 | 25.3 mi | |
| Kalae Makena |
360 | 0 | 25.5 mi | |
| Kualapuu Kualapuu |
500 | 1 | 25.6 mi | |
| Kula Nani Kula |
80 | 0 | 25.6 mi | |
| Upper Kula Kula |
7,686 | 0 | 27.1 mi | |
| Haleakala National Park Kula |
1,200 | 0 | 27.8 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 Napili-Honokowai 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.