Public water system · HI0000131
ActiveNorth Kona
At a glance
North Kona (PWSID HI0000131) is an active community water system in Hawaii County, Hawaii. It reports serving 29,581 people through 10,956 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
29,581
Service connections
10,956
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does North Kona compare with other water systems in Hawaii County?
By EPA's size categories, North Kona is a large system (10,001 to 100,000 people). Hawaii County has 39 active public water systems, and North Kona is the 2nd-largest of them by population served. Its population served is about 8 times the county average of 3,693 people per system, and accounts for 21% of the 144,021 people reported by systems filed under the county. Across Hawaii, the 136 active systems average 11,181 people each. Nationally, the average active community water system reports serving 6,703 people, so North Kona is about 4.4 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Hawaii has 119 active community water systems, 88% of the state's 136 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 112 Hawaii systems (82%) list groundwater as their primary source.
Who owns and regulates North Kona?
EPA lists North Kona as owned by a local government. The HI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 23 of the 39 active systems in Hawaii County (59%) are also owned by a local government.
Does North Kona have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2022. By type: 1 monitoring and reporting. The contaminant or rule involved is Lead and Copper Rule. EPA lists 1 as unaddressed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
North Kona: frequently asked questions
Who runs North Kona?
North Kona (PWSID HI0000131) is a community water system owned by a local government. It is regulated by the HI state drinking water program.
How many people does North Kona serve?
North Kona reports serving 29,581 people through 10,956 service connections in Hawaii County, Hawaii.
Where does North Kona get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does North Kona have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is North Kona's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the HI state drinking water program.
Where can I find North Kona's water quality report?
As a community water system, North Kona must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Hawaii County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Hilo | Hawaii | 39,477 | Community | Groundwater |
| Waikoloa | Hawaii | 12,100 | Community | Groundwater |
| South Kohala | Hawaii | 9,612 | Community | Surface water |
| South Kona | Hawaii | 6,512 | Community | Groundwater |
| Olaa-Mountain View | Hawaii | 6,467 | Community | Groundwater |
| North Kohala | Hawaii | 4,933 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “North Kona, PWSID HI0000131, Hawaii”, https://aquacensus.com/water-systems/hawaii/north-kona-hi0000131 (data as of October 1, 2026).