Public water system · CO0159080
ActiveMesa Cortina Wsd
At a glance
Mesa Cortina Wsd (PWSID CO0159080) is an active community water system in Summit County, Colorado. It reports serving 466 people through 249 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
466
Service connections
249
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mesa Cortina Wsd compare with other water systems in Summit County?
By EPA's size categories, Mesa Cortina Wsd is a very small system (500 people or fewer). Summit County has 42 active public water systems. Its population served is well below the county average of 2,142 people per system, and accounts for 0.5% of the 89,964 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 Mesa Cortina 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,437 Colorado systems (65%) list groundwater as their primary source.
Who owns and regulates Mesa Cortina Wsd?
EPA lists Mesa Cortina 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. 15 of the 42 active systems in Summit County (36%) are also owned by a local government.
Does Mesa Cortina Wsd have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2007. The violations listed here began between September 1993 and September 2007. By type: 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2007-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1993-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 3 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.
Mesa Cortina Wsd: frequently asked questions
Who runs Mesa Cortina Wsd?
Mesa Cortina Wsd (PWSID CO0159080) is a community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does Mesa Cortina Wsd serve?
Mesa Cortina Wsd reports serving 466 people through 249 service connections in Summit County, Colorado.
Where does Mesa Cortina Wsd get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Mesa Cortina Wsd have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2007. 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 Mesa Cortina 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 3 violations for this system; none is health-based, and the most recent began in September 2007. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Mesa Cortina Wsd's water quality report?
As a community water system, Mesa Cortina 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 Summit County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Breckenridge Town of | Summit | 28,315 | Community | Surface water |
| Snake River Wd | Summit | 9,900 | Community | Groundwater |
| Silverthorne Town of | Summit | 8,400 | Community | Groundwater |
| Copper Mountain Consolidated Md | Summit | 5,785 | Community | Groundwater |
| Frisco Town of | Summit | 4,495 | Community | Surface water |
| Cdot Vail Pass Ra | Summit | 3,302 | Transient non-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, “Mesa Cortina Wsd, PWSID CO0159080, Colorado”, https://aquacensus.com/water-systems/colorado/mesa-cortina-wsd-co0159080 (data as of October 1, 2026).