Public water system · CO0142750
ActiveMesa Verde National Park
At a glance
Mesa Verde National Park (PWSID CO0142750) is an active non-transient non-community water system in Montezuma County, Colorado. It reports serving 3,177 people through 52 service connections. Its primary water source is surface water, and EPA lists it as owned by the federal government. EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in October 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,177
Service connections
52
Primary source
SW
Surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Mesa Verde National Park compare with other water systems in Montezuma County?
By EPA's size categories, Mesa Verde National Park is a small system (501 to 3,300 people). Montezuma County has 17 active public water systems, and Mesa Verde National Park is the 3rd-largest of them by population served. Its population served is about 70% above the county average of 1,864 people per system, and accounts for 10% of the 31,691 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Mesa Verde National Park is about 7.4 times that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Colorado has 183 active non-transient non-community water systems, 8.3% 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 Mesa Verde National Park?
EPA lists Mesa Verde National Park as owned by the federal 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. 3 of the 17 active systems in Montezuma County (18%) are also owned by the federal government.
Does Mesa Verde National Park have drinking water violations?
EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in October 2015. The violations listed here began between August 2002 and October 2015. By type: 5 contaminant level above the legal limit, 3 monitoring and reporting, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (4 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2015-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2007-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2007-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2007-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2006-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2006-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
All 10 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 Verde National Park: frequently asked questions
Who runs Mesa Verde National Park?
Mesa Verde National Park (PWSID CO0142750) is a non-transient non-community water system owned by the federal government. It is regulated by the CO state drinking water program.
How many people does Mesa Verde National Park serve?
Mesa Verde National Park reports serving 3,177 people through 52 service connections in Montezuma County, Colorado.
Where does Mesa Verde National Park 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 Mesa Verde National Park have any drinking water violations?
EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in October 2015. 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 Verde National Park'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 10 violations for this system; 6 are health-based, and the most recent began in October 2015. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Mesa Verde National Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mesa Verde National Park is a non-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 Montezuma County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Montezuma Wc | Montezuma | 13,797 | Community | Surface water |
| Cortez City of | Montezuma | 8,770 | Community | Surface water |
| Dolores Town of | Montezuma | 1,626 | Community | Surface water |
| Mancos Town of | Montezuma | 1,390 | Community | Surface water |
| Mancos Rural Water Company | Montezuma | 1,300 | Community | Surface water |
| Montezuma Cnty Wd No 1 | Montezuma | 490 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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 Verde National Park, PWSID CO0142750, Colorado”, https://aquacensus.com/water-systems/colorado/mesa-verde-national-park-co0142750 (data as of October 1, 2026).