Public water system · WA5332648
ActiveHidden Valley Guest Ranch
At a glance
Hidden Valley Guest Ranch (PWSID WA5332648) is an active community water system in Kittitas County, Washington. It reports serving 43 people through 21 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; none is health-based, and the most recent began in February 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
43
Service connections
21
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hidden Valley Guest Ranch compare with other water systems in Kittitas County?
By EPA's size categories, Hidden Valley Guest Ranch is a very small system (500 people or fewer). Kittitas County has 96 active public water systems. Its population served is well below the county average of 528 people per system, and accounts for less than 0.1% of the 50,703 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 Valley Guest Ranch 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 Valley Guest Ranch?
EPA lists Hidden Valley Guest Ranch 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. 72 of the 96 active systems in Kittitas County (75%) are also privately owned.
Does Hidden Valley Guest Ranch have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in February 2005. The violations listed here began between May 2000 and February 2005. By type: 5 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2005-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2004-12-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2004-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2003-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2000-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 5 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 Valley Guest Ranch: frequently asked questions
Who runs Hidden Valley Guest Ranch?
Hidden Valley Guest Ranch (PWSID WA5332648) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Hidden Valley Guest Ranch serve?
Hidden Valley Guest Ranch reports serving 43 people through 21 service connections in Kittitas County, Washington.
Where does Hidden Valley Guest Ranch 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 Valley Guest Ranch have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in February 2005. 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 Valley Guest Ranch'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 5 violations for this system; none is health-based, and the most recent began in February 2005. 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 Valley Guest Ranch's water quality report?
As a community water system, Hidden Valley Guest Ranch 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 Kittitas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ellensburg Water Dept | Kittitas | 20,900 | Community | Groundwater |
| Indian John Rest Area (Eb/Wb) | Kittitas | 5,718 | Transient non-community | Groundwater |
| Suncadia Resort | Kittitas | 2,640 | Community | Purchased surface water |
| Wanapum State Park | Kittitas | 2,263 | Transient non-community | Groundwater |
| Kittitas City of | Kittitas | 2,247 | Community | Groundwater |
| Cle Elum Water Department | Kittitas | 2,213 | Community | Surface water |
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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 Valley Guest Ranch, PWSID WA5332648, Washington”, https://aquacensus.com/water-systems/washington/hidden-valley-guest-ranch-wa5332648 (data as of October 1, 2026).