Public water system · HI0000373
ActiveThe Queen'S Medical Center West Oahu
At a glance
The Queen'S Medical Center West Oahu (PWSID HI0000373) is an active non-transient non-community water system in Honolulu County, Hawaii. It reports serving 800 people through 5 service connections. Its primary water source is purchased groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
800
Service connections
5
Primary source
GWP
Purchased groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does The Queen'S Medical Center West Oahu compare with other water systems in Honolulu County?
By EPA's size categories, The Queen'S Medical Center West Oahu is a small system (501 to 3,300 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 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 non-transient non-community water system reports serving 430 people, so The Queen'S Medical Center West Oahu is about 86% above that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Hawaii has 14 active non-transient non-community water systems, 10% of the state's 136 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 14 Hawaii systems (10%) list purchased groundwater as their primary source.
Who owns and regulates The Queen'S Medical Center West Oahu?
EPA lists The Queen'S Medical Center West Oahu 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 The Queen'S Medical Center West Oahu have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for The Queen'S Medical Center West Oahu. For the latest compliance status, check EPA ECHO for current compliance history.
The Queen'S Medical Center West Oahu: frequently asked questions
Who runs The Queen'S Medical Center West Oahu?
The Queen'S Medical Center West Oahu (PWSID HI0000373) is a non-transient non-community water system privately owned. It is regulated by the HI state drinking water program.
How many people does The Queen'S Medical Center West Oahu serve?
The Queen'S Medical Center West Oahu reports serving 800 people through 5 service connections in Honolulu County, Hawaii.
Where does The Queen'S Medical Center West Oahu get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does The Queen'S Medical Center West Oahu have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is The Queen'S Medical Center West Oahu'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the HI state drinking water program.
Where can I find The Queen'S Medical Center West Oahu's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. The Queen'S Medical Center West Oahu is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
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, “The Queen'S Medical Center West Oahu, PWSID HI0000373, Hawaii”, https://aquacensus.com/water-systems/hawaii/the-queen-s-medical-center-west-oahu-hi0000373 (data as of October 1, 2026).