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Public water system · HI0000374

Active

Villa Rose

At a glance

Villa Rose (PWSID HI0000374) is an active community water system in Honolulu County, Hawaii. It reports serving 30 people through 15 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 October 2024.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

30

Service connections

15

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDHI0000374
System typeCommunity water system
Activity statusActive
Population served30
Service connections15
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyHI state drinking water program
City servedWaialua-Haleiwa
StateHawaii
ZIP—
CountyHonolulu County

How does Villa Rose compare with other water systems in Honolulu County?

By EPA's size categories, Villa Rose is a very small system (500 people or fewer). 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 less than 0.1% 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 Villa Rose is well 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 Villa Rose?

EPA lists Villa Rose 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 Villa Rose have drinking water violations?

EPA's records list one violation for this system; it is health-based, and the most recent began in October 2024. By type: 1 required treatment not met. The contaminant or rule involved is Lead and Copper Rule Revisions. EPA lists 1 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

BeganViolationContaminant or ruleHealth-basedStatus
2024-10-17Required treatment not metLSL Inventory · code 2ELead and Copper Rule Revisionscode 5200YesResolved

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.

Villa Rose: frequently asked questions

Who runs Villa Rose?

Villa Rose (PWSID HI0000374) is a community water system privately owned. It is regulated by the HI state drinking water program.

How many people does Villa Rose serve?

Villa Rose reports serving 30 people through 15 service connections in Honolulu County, Hawaii.

Where does Villa Rose 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 Villa Rose have any drinking water violations?

EPA's records list one violation for this system; it is health-based, and the most recent began in October 2024. 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 Villa Rose'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 October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the HI state drinking water program.

Where can I find Villa Rose's water quality report?

As a community water system, Villa Rose 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 systemCountyPopulation servedTypeSource
Hnl-Windward-Pearl HarborHonolulu631,389CommunityGroundwater
Waipahu-Ewa-WaianaeHonolulu217,479CommunityGroundwater
Joint Base Pearl Harbor-HickamHonolulu65,230CommunityGroundwater
MililaniHonolulu50,573CommunityGroundwater
Schofield BarracksHonolulu37,920CommunityGroundwater
WahiawaHonolulu23,348CommunityGroundwater

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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, “Villa Rose, PWSID HI0000374, Hawaii”, https://aquacensus.com/water-systems/hawaii/villa-rose-hi0000374 (data as of October 1, 2026).