Public water system · CO0254183
ActiveClark Store
At a glance
Clark Store (PWSID CO0254183) is an active transient non-community water system in Routt County, Colorado. It reports serving 215 people through 9 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in June 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
215
Service connections
9
Primary source
GU
Groundwater under influence of surface water
System type
TNCWS
Transient non-community water system
System record
How does Clark Store compare with other water systems in Routt County?
By EPA's size categories, Clark Store is a very small system (500 people or fewer). Routt County has 51 active public water systems. Its population served is well below the county average of 1,031 people per system, and accounts for 0.4% of the 52,569 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 Clark Store is about 49% above 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. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 166 Colorado systems (7.5%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Clark Store?
EPA lists Clark Store 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. 33 of the 51 active systems in Routt County (65%) are also privately owned.
Does Clark Store have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in June 2024. The violations listed here began between February 2023 and June 2024. By type: 6 required treatment not met, 5 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Surface Water Treatment Rule (9 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 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2023-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2023-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2023-05-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2023-04-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2023-03-31 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-03-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2023-03-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2023-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2023-02-01 | 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.
Clark Store: frequently asked questions
Who runs Clark Store?
Clark Store (PWSID CO0254183) is a transient non-community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Clark Store serve?
Clark Store reports serving 215 people through 9 service connections in Routt County, Colorado.
Where does Clark Store get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Clark Store have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 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 Clark Store'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, 6 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 Clark Store's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Clark Store 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 Routt County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mt Werner Wd | Routt | 19,000 | Community | Surface water |
| Steamboat Springs City of | Routt | 9,950 | Community | Purchased surface water |
| Steamboat Ski Corp Thunderhead | Routt | 6,517 | Transient non-community | Groundwater under influence of surface water |
| Hayden Town of | Routt | 3,982 | Community | Surface water |
| Steamboat Ski Corp Rendezvous | Routt | 2,500 | Transient non-community | Groundwater |
| Steamboat Ii Md | Routt | 1,450 | 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, “Clark Store, PWSID CO0254183, Colorado”, https://aquacensus.com/water-systems/colorado/clark-store-co0254183 (data as of October 1, 2026).