Tapcensus

Water quality for ZIP code 96738

ZIP 96738 covers Waikoloa Village and Waikoloa Beach Resort in Hawaii County, Hawaii, one of 28 ZIP codes in the county. 39 active public water systems serve the county; 3 had an EPA violation in the past three years.

Most likely your provider

Napuu Water Inc. HI0000150 · Community water system · Ground water · Puuwaawaa Ranch Dho
Serves 468 people Rules violated, past 3 years 0 Last sanitary survey Sep 23, 2022 Distance 4.5 mi

Other community water systems in Hawaii County

36 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Waikoloa
Waikoloa (dho)
12,100 0 5.0 mi
Lalamilo
Lalamilo
1,895 0 7.4 mi
Kaupulehu
Kona
1,945 0 12.6 mi
Kawaihae Unit #1
Kawaihae
193 0 12.9 mi
Kona Water Service Company
Kona
260 0 13.1 mi
Kohala Ranch Water Co.
Kohala Joint Venture
850 0 14.7 mi
South Kohala
South Kohala
9,612 1 14.8 mi
Waiki'i Ranch
Waikii Ranch (dho)
102 0 19.0 mi
North Kona
North Kona
29,581 1 19.6 mi
Kukuihaele
Kukuihaele
483 0 23.0 mi
Niulii
Niulii
254 0 23.8 mi
North Kohala
North Kohala
4,933 0 24.7 mi
Haina
Haina
4,563 0 25.8 mi
South Kona
South Kona
6,512 0 26.1 mi
Paauilo
Paauilo
716 0 30.5 mi
Ookala (dws)
Ookala
264 0 35.2 mi
Laupahoehoe-Kapehu
Laupahoehoe
1,169 0 37.1 mi
Honomu
Honomu
645 0 43.5 mi
Hakalau-Wailea
Hakalau-wailea
402 0 43.8 mi
Pepeekeo
Pepeekeo
1,450 0 45.3 mi
Pepeekeo Water Association
Pepeekeo
60 0 45.3 mi
Papaikou
Papaikou
2,203 0 46.0 mi
Hawaii Volcanoes Nat.park
Hvnp (dho)
4,201 0 47.5 mi
Hilo
Hilo
39,477 0 47.6 mi
Hawaiian Ocean View Estates
Kona
1,000 0 49.4 mi
All 37 community water systems in Hawaii County
Non-community systems in Hawaii County (2: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
New Moon Foundation
Kapaau
80 0 0
Kilauea Military Camp
Kilauea Volcano
220 0 0
About this data

Water systems are matched to Hawaii County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.