Tap Truth EPA drinking water records, in plain English

County drinking water records

Hawaii County, HI drinking water systems

33 community water systems serve Hawaii County, HI, reporting 143,185 people served in all. A system that also serves other counties counts all of its customers here.

None of them had a health-based violation in the last 10 years.

32 rely mainly on groundwater and 1 on surface water, counting water bought from other systems.

Their lead service line inventories list 0 lead lines, 53 galvanized lines that must be replaced and 2,964 lines of unknown material.

4 more systems are placed in Hawaii County, HI by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
33
People served, sum of each system's own figure
143,185
Systems with a health-based violation, last 10 years
0
Systems with one unresolved
1
Lead service lines in inventories
0

Water systems serving Hawaii County

33 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Hilo Hilo and Wainaku 39,477 Groundwater 0 0 0
North Kona Kaiminani, Kailua and 3 more 29,581 Groundwater 0 1 0
Waikoloa Waikoloa Village and Waikoloa Beach Resort 12,100 Groundwater 0 0 0
South Kohala Waimea 9,612 Surface water 0 0 0
South Kona Kealakekua, Captain Cook and 1 more 6,512 Groundwater 0 0 0
Olaa-Mountain View Kurtistown, Mountain View and 1 more 6,467 Groundwater 0 0 0
North Kohala Hawi and Kapaau 4,933 Groundwater 0 0 0
Haina Honokaa and land outside it 4,563 Groundwater 0 0 0
Hawaii Volcanoes Nat.Park Mauna Loa Estates, Volcano and 1 more 4,201 Groundwater 0 0 0
Hawaiian Beaches Hawaiian Beaches 3,546 Groundwater 0 0 0
Waiohinu-Naalehu Hawaiian Ocean View 2,948 Groundwater 0 0 0
Papaikou Papaikou and Paukaa and land outside them 2,203 Groundwater 0 0 0
Kaupulehu Outside cities and towns 1,945 Groundwater 0 0 0
Lalamilo Puako and Waikoloa Beach Resort 1,895 Groundwater 0 0 0
Pahoa Hawaiian Beaches and Pahoa 1,885 Groundwater 0 0 0
Pepeekeo Pepeekeo 1,450 Groundwater 0 0 0
Hawaiian Shores Hawaiian Paradise Park 1,360 Groundwater 0 0 0
Pahala Pahala 1,226 Groundwater 0 0 0
Laupahoehoe-Kapehu Laupahoehoe 1,169 Groundwater 0 0 0
Hawaiian Ocean View Estates Hilo 1,000 Groundwater 0 0 0
Kohala Ranch Water Co. Outside cities and towns 850 Groundwater 0 0 0
Paauilo Paauilo 716 Groundwater 0 0 0
Honomu Honomu and land outside it 645 Groundwater 0 0 0
Kukuihaele Kukuihaele 483 Groundwater 0 0 0
Napuu Water Inc. Outside cities and towns 468 Groundwater 0 0 0
Hakalau-Wailea Outside cities and towns 402 Groundwater 0 0 0
Kalapana Black Sands, Seaview and 1 more 275 Groundwater 0 0 0
Ookala (DWS) Outside cities and towns 264 Groundwater 0 0 0
Kona Water Service Company Outside cities and towns 260 Groundwater 0 0 0
Niulii Outside cities and towns 254 Groundwater 0 0 0
Punalu'u Outside cities and towns 200 Groundwater 0 0 0
Kawaihae Unit #1 Outside cities and towns 193 Purchased groundwater 0 0 0
Waiki'i Ranch Outside cities and towns 102 Groundwater 0 0 0

Systems placed by county record in Hawaii County

4 systems

EPA has no service area map for these systems. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Keopu Water Association County on record 250 Purchased groundwater 1 0 0
Ninole County on record 151 Groundwater 0 0 0
Wood Valley County on record 75 Groundwater 0 0 0
Pepeekeo Water Association County on record 60 Purchased groundwater 0 0 0

Cities and towns in Hawaii County

36 places

Back to Hawaii

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations