Public water system · CO0143337
ActiveHidden Lake Community
At a glance
Hidden Lake Community (PWSID CO0143337) is an active community water system in Montrose County, Colorado. It reports serving 83 people through 33 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
83
Service connections
33
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Hidden Lake Community compare with other water systems in Montrose County?
By EPA's size categories, Hidden Lake Community is a very small system (500 people or fewer). Montrose County has 25 active public water systems. Its population served is well below the county average of 2,250 people per system, and accounts for 0.1% of the 56,238 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active community water system reports serving 6,703 people, so Hidden Lake Community 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. Colorado has 1,068 active community water systems, 48% of the state's 2,207 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 337 Colorado systems (15%) list purchased surface water as their primary source.
Who owns and regulates Hidden Lake Community?
EPA lists Hidden Lake Community 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. 15 of the 25 active systems in Montrose County (60%) are also privately owned.
Does Hidden Lake Community have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 2023. The violations listed here began between July 2023 and August 2023. By type: 2 monitoring and reporting. The contaminants or rules involved are Surface Water Treatment Rule and Chloramine. EPA lists 2 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 |
|---|---|---|---|---|
| 2023-08-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2023-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloraminecode 1006 | No | Resolved |
All 2 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 Lake Community: frequently asked questions
Who runs Hidden Lake Community?
Hidden Lake Community (PWSID CO0143337) is a community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Hidden Lake Community serve?
Hidden Lake Community reports serving 83 people through 33 service connections in Montrose County, Colorado.
Where does Hidden Lake Community get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Hidden Lake Community have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 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 Lake Community'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 2 violations for this system; none is health-based, and the most recent began in August 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Hidden Lake Community's water quality report?
As a community water system, Hidden Lake Community 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 Montrose County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Tri County Wcd | Montrose | 20,490 | Community | Purchased surface water |
| Montrose City of | Montrose | 19,305 | Community | Purchased surface water |
| Menoken Wd | Montrose | 4,500 | Community | Purchased surface water |
| Chipeta Wd | Montrose | 3,802 | Community | Purchased surface water |
| Olathe Town of | Montrose | 3,015 | Community | Purchased surface water |
| Northbrook Villas Mhc | Montrose | 1,052 | 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 Lake Community, PWSID CO0143337, Colorado”, https://aquacensus.com/water-systems/colorado/hidden-lake-community-co0143337 (data as of October 1, 2026).