Public water system · CO0126220
ActiveGunnison County Wsd
At a glance
Gunnison County Wsd (PWSID CO0126220) is an active community water system in Gunnison County, Colorado. It reports serving 800 people through 330 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
800
Service connections
330
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Gunnison County Wsd compare with other water systems in Gunnison County?
By EPA's size categories, Gunnison County Wsd is a small system (501 to 3,300 people). Gunnison County has 71 active public water systems, and Gunnison County Wsd is the 6th-largest of them by population served. Its population served is about twice the county average of 383 people per system, and accounts for 2.9% 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 Gunnison County Wsd 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. 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 Gunnison County Wsd?
EPA lists Gunnison County 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 Gunnison County Wsd have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2026. The violations listed here began between November 1994 and January 2026. By type: 5 monitoring and reporting and 3 public notice, recordkeeping or other. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 6 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2007-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2006-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2003-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1996-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1994-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-11-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
All 8 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.
Gunnison County Wsd: frequently asked questions
Who runs Gunnison County Wsd?
Gunnison County Wsd (PWSID CO0126220) is a community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does Gunnison County Wsd serve?
Gunnison County Wsd reports serving 800 people through 330 service connections in Gunnison County, Colorado.
Where does Gunnison County 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 Gunnison County Wsd have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2026. 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 Gunnison County 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 8 violations for this system; none is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Gunnison County Wsd's water quality report?
As a community water system, Gunnison County 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 |
| Mount Crested Butte Wsd | Gunnison | 3,296 | Community | Surface water |
| 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 |
| 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, “Gunnison County Wsd, PWSID CO0126220, Colorado”, https://aquacensus.com/water-systems/colorado/gunnison-county-wsd-co0126220 (data as of October 1, 2026).