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Non-Transient Non-Community Water System · PWS CO0142750

Mesa Verde National Park

Mesa Verde, Colorado 81330 - drinking water served from surface water sources to 3,177 people, tracked in EPA SDWIS and UCMR5.

3,177
People served
36
EPA violations
23
Health-based
Untested
UCMR5 result

The verdict

EPA records 36 drinking-water violations at Mesa Verde National Park, 64% of them health-based - below the Colorado per-system average.

36
Total EPA violations on record
64%
Health-based (MCL / treatment failure)
3,177
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mesa Verde National Park

Mesa Verde National Park is a federal-owned non-transient non-community water system that delivers drinking water to 3,177 residents in Mesa Verde, Colorado (Montezuma County) through 52 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 36 total violations for this system , of which 23 (64%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 9 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is TTHM, recorded in 16 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Colorado, EPA tracks 2,193 public water systems serving 7,473,456 people, with 238,796 cumulative violations and 30,589 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 108.9 violations. Statewide, 98 of 163 UCMR5-tested systems have reported PFAS detections (60.1%).

Mesa Verde National Park's 36 violations sit below the Colorado average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
3,177
Total Violations
36
Health-Based Violations
23
Water Source
Surface Water

System Details

System Type
Non-Transient Non-Community
Owner Type
Federal
Connections
52
County
Montezuma
School/Daycare
No
MCL Violations
20
Monitoring Violations
9
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 16 2008
Coliform (TCR) MCL 4 2003
Coliform (TCR) MR 3 2006
Total Haloacetic Acids (HAA5) MR 3 2015
Surface Water Treatment Rule TT 3 2002
Chlorine MR 3 2008
Consumer Confidence Rule Other 2 2006

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Mesa Verde National Park.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CO0142750 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Colorado Drinking Water Authority

Colorado Department of Public Health and Environment, Water Quality Control is the primacy agency that licenses and inspects Mesa Verde National Park under EPA-delegated authority.

Open CO regulator portal

Source: Colorado Department of Public Health and Environment, Water Quality Control

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2015 Total Haloacetic Acids (HAA5) MR 3 SDWIS / CO0142750 / 2456
2008 TTHM MCL 16 SDWIS / CO0142750 / 2950
2008 Chlorine MR 3 SDWIS / CO0142750 / 0999
2006 Coliform (TCR) MR 3 SDWIS / CO0142750 / 3100
2006 Consumer Confidence Rule Other 2 SDWIS / CO0142750 / 7000
2003 Coliform (TCR) MCL 4 SDWIS / CO0142750 / 3100
2002 Surface Water Treatment Rule TT 3 SDWIS / CO0142750 / 0200

How Mesa Verde National Park Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Mesa Verde National Park Colorado avg Federal benchmark
Total violations 36 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 23 13.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,177 3,408 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,193 regulated public water systems in Colorado.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Mesa Verde National Park water safe to drink? ▼
Mesa Verde National Park (PWS ID: CO0142750) has 36 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,177 people using Surface Water sources.
How many people does Mesa Verde National Park serve? ▼
Mesa Verde National Park serves 3,177 people in Mesa Verde, Colorado. It is a Federal-owned system using Surface Water water sources with 52 service connections.
What type of violations does Mesa Verde National Park have? ▼
Mesa Verde National Park has 36 total violations: 23 health-based violations (MCL exceedances or treatment failures), 9 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mesa Verde National Park water? ▼
No PFAS testing data is available for Mesa Verde National Park under the EPA's UCMR5 monitoring program.
What water source does Mesa Verde National Park use? ▼
Mesa Verde National Park uses Surface Water as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.