Public water system · CO0204332
ActiveHidden Valley Ranch
At a glance
Hidden Valley Ranch (PWSID CO0204332) is an active transient non-community water system in Archuleta County, Colorado. It reports serving 34 people through 14 service connections. Its primary water source is surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in June 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
34
Service connections
14
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Hidden Valley Ranch compare with other water systems in Archuleta County?
By EPA's size categories, Hidden Valley Ranch is a very small system (500 people or fewer). Archuleta County has 16 active public water systems. Its population served is well below the county average of 991 people per system, and accounts for 0.2% of the 15,857 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Hidden Valley Ranch is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Colorado has 956 active transient non-community water systems, 43% of the state's 2,207 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 228 Colorado systems (10%) list surface water as their primary source.
Who owns and regulates Hidden Valley Ranch?
EPA lists Hidden Valley Ranch as privately owned. The CO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 12 of the 16 active systems in Archuleta County (75%) are also privately owned.
Does Hidden Valley Ranch have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in June 2024. The violations listed here began between November 2020 and June 2024. By type: 5 monitoring and reporting, 5 required treatment not met and 2 monitoring. The contaminant or rule involved most often is Surface Water Treatment Rule (8 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2024-06-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2022-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2021-04-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2021-03-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2021-02-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2021-01-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2020-12-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2020-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-11-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
The 12 most recent 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 Ranch: frequently asked questions
Who runs Hidden Valley Ranch?
Hidden Valley Ranch (PWSID CO0204332) is a transient non-community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Hidden Valley Ranch serve?
Hidden Valley Ranch reports serving 34 people through 14 service connections in Archuleta County, Colorado.
Where does Hidden Valley Ranch get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Hidden Valley Ranch have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in June 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 Hidden Valley 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. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in June 2024. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Hidden Valley Ranch's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Hidden Valley Ranch is a 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 Archuleta County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pagosa Area Wsd | Archuleta | 11,069 | Community | Surface water |
| Navajo State Park | Archuleta | 2,015 | Transient non-community | Groundwater |
| San Juan River Village Md | Archuleta | 877 | Community | Groundwater under influence of surface water |
| Piedra Park Md | Archuleta | 850 | Community | Groundwater under influence of surface water |
| Aspen Springs Md | Archuleta | 290 | Community | Groundwater |
| Alpine Lakes Ranch Wc | Archuleta | 158 | Community | Purchased 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 Ranch, PWSID CO0204332, Colorado”, https://aquacensus.com/water-systems/colorado/hidden-valley-ranch-co0204332 (data as of October 1, 2026).