Public water system · CO0239618
ActiveGrand Mesa Md 2
At a glance
Grand Mesa Md 2 (PWSID CO0239618) is an active transient non-community water system in Mesa County, Colorado. It reports serving 426 people through 42 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in June 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
426
Service connections
42
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Grand Mesa Md 2 compare with other water systems in Mesa County?
By EPA's size categories, Grand Mesa Md 2 is a very small system (500 people or fewer). Mesa County has 30 active public water systems. Its population served is well below the county average of 5,438 people per system, and accounts for 0.3% of the 163,137 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Grand Mesa Md 2 is about 196% above that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Colorado has 956 active transient non-community water systems, 43% 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 Grand Mesa Md 2?
EPA lists Grand Mesa Md 2 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. 11 of the 30 active systems in Mesa County (37%) are also owned by a local government.
Does Grand Mesa Md 2 have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in June 2025. The violations listed here began between May 2005 and June 2025. By type: 11 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Surface Water Treatment Rule (9 of them). 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 |
|---|---|---|---|---|
| 2025-06-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2025-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2017-07-02 | Monitoring and reportingMonitoring, Source Water (LT2) · code 32 | Long Term 2 Enhanced Surface Water Treatment Rulecode 0800 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2016-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2016-08-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2016-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2015-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2006-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2005-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2005-05-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | 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.
Grand Mesa Md 2: frequently asked questions
Who runs Grand Mesa Md 2?
Grand Mesa Md 2 (PWSID CO0239618) is a transient non-community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does Grand Mesa Md 2 serve?
Grand Mesa Md 2 reports serving 426 people through 42 service connections in Mesa County, Colorado.
Where does Grand Mesa Md 2 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 Grand Mesa Md 2 have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in June 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 Grand Mesa Md 2'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, one is health-based, and the most recent began in June 2025. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Grand Mesa Md 2's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Grand Mesa Md 2 is a 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 Mesa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ute Wcd | Mesa | 92,580 | Community | Surface water |
| Clifton Wd | Mesa | 34,500 | Community | Surface water |
| Grand Junction City of | Mesa | 26,000 | Community | Surface water |
| Palisade Town of | Mesa | 3,060 | Community | Surface water |
| Debeque Town of | Mesa | 911 | Community | Surface water |
| Midlands Village | Mesa | 893 | 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, “Grand Mesa Md 2, PWSID CO0239618, Colorado”, https://aquacensus.com/water-systems/colorado/grand-mesa-md-2-co0239618 (data as of October 1, 2026).