Public water system · CO0254200
ActiveTwenty Mile Coal Co
At a glance
Twenty Mile Coal Co (PWSID CO0254200) is an active non-transient non-community water system in Routt County, Colorado. It reports serving 475 people through 5 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
475
Service connections
5
Primary source
SWP
Purchased surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Twenty Mile Coal Co compare with other water systems in Routt County?
By EPA's size categories, Twenty Mile Coal Co is a very small system (500 people or fewer). Routt County has 51 active public water systems. Its population served is about half of the county average of 1,031 people per system, and accounts for 0.9% 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 non-transient non-community water system reports serving 430 people, so Twenty Mile Coal Co is about 11% above that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Colorado has 183 active non-transient non-community water systems, 8.3% 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 Twenty Mile Coal Co?
EPA lists Twenty Mile Coal Co 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 Twenty Mile Coal Co have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2025. The violations listed here began between January 2020 and April 2025. By type: 12 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule, Chlordane, Nitrate and Ethylene dibromide (EDB). 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 |
|---|---|---|---|---|
| 2025-04-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlordanecode 2959 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylene dibromide (EDB)code 2946 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | 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.
Twenty Mile Coal Co: frequently asked questions
Who runs Twenty Mile Coal Co?
Twenty Mile Coal Co (PWSID CO0254200) is a non-transient non-community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Twenty Mile Coal Co serve?
Twenty Mile Coal Co reports serving 475 people through 5 service connections in Routt County, Colorado.
Where does Twenty Mile Coal Co 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 Twenty Mile Coal Co have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2025. 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 Twenty Mile Coal Co'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, none is health-based, and the most recent began in April 2025. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Twenty Mile Coal Co's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Twenty Mile Coal Co is a non-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, “Twenty Mile Coal Co, PWSID CO0254200, Colorado”, https://aquacensus.com/water-systems/colorado/twenty-mile-coal-co-co0254200 (data as of October 1, 2026).