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Transient Non-Community Water System · PWS CO0233524

Mt Massive Golf Course

Leadville, Colorado 80461 - drinking water served from groundwater sources to 80 people, tracked in EPA SDWIS and UCMR5.

80
People served
127
EPA violations
8
Health-based
Untested
UCMR5 result

The verdict

EPA records 127 drinking-water violations at Mt Massive Golf Course, 6% of them health-based - above the Colorado per-system average.

127
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
80
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mt Massive Golf Course

Mt Massive Golf Course is a private-owned transient non-community water system that delivers drinking water to 80 residents in Leadville, Colorado (Lake County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 127 total violations for this system , of which 8 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 110 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 69 violations (MR). 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, 37 of 163 UCMR5-tested systems have reported PFAS detections (22.7%).

Mt Massive Golf Course's 127 violations sit above 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
80
Total Violations
127
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Lake
School/Daycare
No
MCL Violations
4
Monitoring Violations
110
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 69 2013
Nitrate MR 20 2013
Revised Total Coliform Rule MON 18 2025
Revised Total Coliform Rule RPT 6 2021
Revised Total Coliform Rule TT 4 2025
Coliform (TCR) MCL 4 2011
E. COLI MR 3 2011
Public Notice Other 3 2025

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 Mt Massive Golf Course.

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 CO0233524 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 Mt Massive Golf Course 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
2025 Revised Total Coliform Rule MON 18 SDWIS / CO0233524 / 8000
2025 Revised Total Coliform Rule TT 4 SDWIS / CO0233524 / 8000
2025 Public Notice Other 3 SDWIS / CO0233524 / 7500
2021 Revised Total Coliform Rule RPT 6 SDWIS / CO0233524 / 8000
2013 Coliform (TCR) MR 69 SDWIS / CO0233524 / 3100
2013 Nitrate MR 20 SDWIS / CO0233524 / 1040
2011 Coliform (TCR) MCL 4 SDWIS / CO0233524 / 3100
2011 E. COLI MR 3 SDWIS / CO0233524 / 3014

How Mt Massive Golf Course Compares

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

Metric Mt Massive Golf Course Colorado avg Federal benchmark
Total violations 127 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 13.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 22.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 80 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 Mt Massive Golf Course water safe to drink? ▼
Mt Massive Golf Course (PWS ID: CO0233524) has 127 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 80 people using Groundwater sources.
How many people does Mt Massive Golf Course serve? ▼
Mt Massive Golf Course serves 80 people in Leadville, Colorado. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Mt Massive Golf Course have? ▼
Mt Massive Golf Course has 127 total violations: 8 health-based violations (MCL exceedances or treatment failures), 110 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mt Massive Golf Course water? ▼
No PFAS testing data is available for Mt Massive Golf Course under the EPA's UCMR5 monitoring program.
What water source does Mt Massive Golf Course use? ▼
Mt Massive Golf Course uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.