Public water system · CO0143755
ActiveTri County Wcd
At a glance
Tri County Wcd (PWSID CO0143755) is an active community water system in Montrose County, Colorado. It reports serving 20,490 people through 8,046 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
20,490
Service connections
8,046
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Tri County Wcd compare with other water systems in Montrose County?
By EPA's size categories, Tri County Wcd is a large system (10,001 to 100,000 people). Montrose County has 25 active public water systems, and Tri County Wcd is the largest of them by population served. Its population served is about 9.1 times the county average of 2,250 people per system, and accounts for 36% 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 Tri County Wcd is about 3.1 times 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 Tri County Wcd?
EPA lists Tri County Wcd 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. 9 of the 25 active systems in Montrose County (36%) are also owned by a local government.
Does Tri County Wcd have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2016. The violations listed here began between March 2007 and July 2016. By type: 1 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminants or rules involved are Consumer Confidence Rule and Total coliform bacteria (TCR). 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 |
|---|---|---|---|---|
| 2016-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2007-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Tri County Wcd: frequently asked questions
Who runs Tri County Wcd?
Tri County Wcd (PWSID CO0143755) is a community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does Tri County Wcd serve?
Tri County Wcd reports serving 20,490 people through 8,046 service connections in Montrose County, Colorado.
Where does Tri County Wcd 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 Tri County Wcd have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2016. 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 Tri County Wcd'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 July 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Tri County Wcd's water quality report?
As a community water system, Tri County Wcd 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 |
|---|---|---|---|---|
| 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 |
| Nucla Town of | Montrose | 875 | 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, “Tri County Wcd, PWSID CO0143755, Colorado”, https://aquacensus.com/water-systems/colorado/tri-county-wcd-co0143755 (data as of October 1, 2026).