Public water system · WA5300944
ActiveHidden Heights
At a glance
Hidden Heights (PWSID WA5300944) is an active community water system in Kitsap County, Washington. It reports serving 35 people through 16 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
35
Service connections
16
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hidden Heights compare with other water systems in Kitsap County?
By EPA's size categories, Hidden Heights is a very small system (500 people or fewer). Kitsap County has 220 active public water systems. Its population served is well below the county average of 1,560 people per system, and accounts for less than 0.1% of the 343,203 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active community water system reports serving 6,703 people, so Hidden Heights 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. Washington has 2,392 active community water systems, 51% of the state's 4,705 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,370 Washington systems (93%) list groundwater as their primary source.
Who owns and regulates Hidden Heights?
EPA lists Hidden Heights as privately owned. The WA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 164 of the 220 active systems in Kitsap County (75%) are also privately owned.
Does Hidden Heights have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2023. The violations listed here began between April 2007 and July 2023. By type: 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Diquat (3 of them). EPA lists 4 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Diquatcode 2032 | No | Resolved |
| 2007-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Diquatcode 2032 | No | Resolved |
| 2007-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Diquatcode 2032 | No | Resolved |
All 4 violations in EPA's records, newest first.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.
Hidden Heights: frequently asked questions
Who runs Hidden Heights?
Hidden Heights (PWSID WA5300944) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Hidden Heights serve?
Hidden Heights reports serving 35 people through 16 service connections in Kitsap County, Washington.
Where does Hidden Heights 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 Hidden Heights have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2023. 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 Hidden Heights' 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 4 violations for this system; none is health-based, and the most recent began in July 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Hidden Heights' water quality report?
As a community water system, Hidden Heights 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 Kitsap County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bremerton City of | Kitsap | 72,951 | Community | Surface water |
| Silverdale Water Dist 16 | Kitsap | 35,163 | Community | Groundwater |
| West Sound Utility District #1 | Kitsap | 28,930 | Community | Groundwater |
| North Perry Ave Water District | Kitsap | 24,402 | Community | Groundwater |
| Poulsbo City of | Kitsap | 18,400 | Community | Groundwater |
| Naval Base Kitsap at Bangor | Kitsap | 16,828 | 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, “Hidden Heights, PWSID WA5300944, Washington”, https://aquacensus.com/water-systems/washington/hidden-heights-wa5300944 (data as of October 1, 2026).