Public water system · CO0126190
ActiveMount Crested Butte Wsd
At a glance
Mount Crested Butte Wsd (PWSID CO0126190) is an active community water system in Gunnison County, Colorado. It reports serving 3,296 people through 975 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; none is health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,296
Service connections
975
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Mount Crested Butte Wsd compare with other water systems in Gunnison County?
By EPA's size categories, Mount Crested Butte Wsd is a small system (501 to 3,300 people). Gunnison County has 71 active public water systems, and Mount Crested Butte Wsd is the 2nd-largest of them by population served. Its population served is about 8.6 times the county average of 383 people per system, and accounts for 12% of the 27,176 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 Mount Crested Butte Wsd is about half of 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. 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 Mount Crested Butte Wsd?
EPA lists Mount Crested Butte Wsd as owned by a local government. 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. 7 of the 71 active systems in Gunnison County (9.9%) are also owned by a local government.
Does Mount Crested Butte Wsd have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in October 2023. The violations listed here began between July 2007 and October 2023. By type: 5 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (2 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2023-10-01 | Monitoring and reportingMonitoring, Source Water (LT2) · code 32 | E. colicode 3014 | No | Resolved |
| 2016-05-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2007-11-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2007-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
All 6 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.
Mount Crested Butte Wsd: frequently asked questions
Who runs Mount Crested Butte Wsd?
Mount Crested Butte Wsd (PWSID CO0126190) is a community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does Mount Crested Butte Wsd serve?
Mount Crested Butte Wsd reports serving 3,296 people through 975 service connections in Gunnison County, Colorado.
Where does Mount Crested Butte Wsd 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 Mount Crested Butte Wsd have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in October 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 Mount Crested Butte Wsd'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 6 violations for this system; none is health-based, and the most recent began in October 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 Mount Crested Butte Wsd's water quality report?
As a community water system, Mount Crested Butte Wsd 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 Gunnison County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Gunnison City of | Gunnison | 9,610 | Community | Groundwater |
| Crested Butte Town of | Gunnison | 2,440 | Community | Surface water |
| Crested Butte South | Gunnison | 2,000 | Community | Groundwater |
| Cbmr Paradise Warming House | Gunnison | 1,530 | Transient non-community | Groundwater |
| Gunnison County Wsd | Gunnison | 800 | Community | Surface water |
| Evergreen Lake Company | Gunnison | 431 | 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, “Mount Crested Butte Wsd, PWSID CO0126190, Colorado”, https://aquacensus.com/water-systems/colorado/mount-crested-butte-wsd-co0126190 (data as of October 1, 2026).