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Transient Non-Community Water System · PWS CO0235038

Hermit Park Open Space

Estes Park, Colorado 80517 - drinking water served from groundwater sources to 464 people, tracked in EPA SDWIS and UCMR5.

464
People served
74
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 74 drinking-water violations at Hermit Park Open Space, 14% of them health-based - below the Colorado per-system average.

74
Total EPA violations on record
14%
Health-based (MCL / treatment failure)
464
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Hermit Park Open Space

Hermit Park Open Space is a local-owned transient non-community water system that delivers drinking water to 464 residents in Estes Park, Colorado (Larimer County) through 11 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 74 total violations for this system , of which 10 (14%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 58 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 21 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, 98 of 163 UCMR5-tested systems have reported PFAS detections (60.1%).

Hermit Park Open Space's 74 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
464
Total Violations
74
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Local
Connections
11
County
Larimer
School/Daycare
No
MCL Violations
8
Monitoring Violations
58
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 21 2013
Nitrite MR 16 2009
Revised Total Coliform Rule MON 12 2025
Coliform (TCR) MCL 8 2013
Nitrate MR 6 2008
E. COLI MR 3 2012
Revised Total Coliform Rule RPT 3 2024
Revised Total Coliform Rule TT 2 2025
Revised Total Coliform Rule Other 2 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 Hermit Park Open Space.

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 CO0235038 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 Hermit Park Open Space 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 12 SDWIS / CO0235038 / 8000
2025 Revised Total Coliform Rule TT 2 SDWIS / CO0235038 / 8000
2025 Revised Total Coliform Rule Other 2 SDWIS / CO0235038 / 8000
2024 Revised Total Coliform Rule RPT 3 SDWIS / CO0235038 / 8000
2013 Coliform (TCR) MR 21 SDWIS / CO0235038 / 3100
2013 Coliform (TCR) MCL 8 SDWIS / CO0235038 / 3100
2012 E. COLI MR 3 SDWIS / CO0235038 / 3014
2009 Nitrite MR 16 SDWIS / CO0235038 / 1041
2008 Nitrate MR 6 SDWIS / CO0235038 / 1040

How Hermit Park Open Space Compares

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

Metric Hermit Park Open Space Colorado avg Federal benchmark
Total violations 74 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 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 464 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 Hermit Park Open Space water safe to drink? ▼
Hermit Park Open Space (PWS ID: CO0235038) has 74 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 464 people using Groundwater sources.
How many people does Hermit Park Open Space serve? ▼
Hermit Park Open Space serves 464 people in Estes Park, Colorado. It is a Local-owned system using Groundwater water sources with 11 service connections.
What type of violations does Hermit Park Open Space have? ▼
Hermit Park Open Space has 74 total violations: 10 health-based violations (MCL exceedances or treatment failures), 58 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Hermit Park Open Space water? ▼
No PFAS testing data is available for Hermit Park Open Space under the EPA's UCMR5 monitoring program.
What water source does Hermit Park Open Space use? ▼
Hermit Park Open Space 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.