Public water system · HI0000325
ActiveLaie Water Company
At a glance
Laie Water Company (PWSID HI0000325) is an active community water system in Honolulu County, Hawaii. It reports serving 5,577 people through 750 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is health-based, and the most recent began in June 2000.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,577
Service connections
750
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Laie Water Company compare with other water systems in Honolulu County?
By EPA's size categories, Laie Water Company is a medium system (3,301 to 10,000 people). Honolulu County has 38 active public water systems. Its population served is well below the county average of 29,687 people per system, and accounts for 0.5% of the 1,128,119 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 Laie Water Company is about 17% below 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 Laie Water Company?
EPA lists Laie Water Company as privately owned. 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. 16 of the 38 active systems in Honolulu County (42%) are also privately owned.
Does Laie Water Company have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in June 2000. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2000-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
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.
Laie Water Company: frequently asked questions
Who runs Laie Water Company?
Laie Water Company (PWSID HI0000325) is a community water system privately owned. It is regulated by the HI state drinking water program.
How many people does Laie Water Company serve?
Laie Water Company reports serving 5,577 people through 750 service connections in Honolulu County, Hawaii.
Where does Laie Water Company 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 Laie Water Company have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in June 2000. 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 Laie Water Company'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 health-based, and the most recent began in June 2000. For current results, consult the system's annual water quality report, EPA ECHO, or the HI state drinking water program.
Where can I find Laie Water Company's water quality report?
As a community water system, Laie Water Company 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 Honolulu County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Hnl-Windward-Pearl Harbor | Honolulu | 631,389 | Community | Groundwater |
| Waipahu-Ewa-Waianae | Honolulu | 217,479 | Community | Groundwater |
| Joint Base Pearl Harbor-Hickam | Honolulu | 65,230 | Community | Groundwater |
| Mililani | Honolulu | 50,573 | Community | Groundwater |
| Schofield Barracks | Honolulu | 37,920 | Community | Groundwater |
| Wahiawa | Honolulu | 23,348 | 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, “Laie Water Company, PWSID HI0000325, Hawaii”, https://aquacensus.com/water-systems/hawaii/laie-water-company-hi0000325 (data as of October 1, 2026).