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Transient Non-Community Water System · PWS CO0239725

Sunset Lake Summer Home Owners

Grand Junction, Colorado 81507 - drinking water served from surface water sources to 32 people, tracked in EPA SDWIS and UCMR5.

32
People served
100
EPA violations
39
Health-based
Untested
UCMR5 result

The verdict

EPA records 100 drinking-water violations at Sunset Lake Summer Home Owners, 39% of them health-based - below the Colorado per-system average.

100
Total EPA violations on record
39%
Health-based (MCL / treatment failure)
32
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Sunset Lake Summer Home Owners

Sunset Lake Summer Home Owners is a private-owned transient non-community water system that delivers drinking water to 32 residents in Grand Junction, Colorado (Mesa County) through 28 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 100 total violations for this system , of which 39 (39%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 57 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 29 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%).

Sunset Lake Summer Home Owners's 100 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
32
Total Violations
100
Health-Based Violations
39
Water Source
Surface Water

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
28
County
Mesa
School/Daycare
No
MCL Violations
27
Monitoring Violations
57
Treatment Tech Violations
12

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 29 2013
Coliform (TCR) MCL 27 2012
Surface Water Treatment Rule MR 9 2023
Interim Enhanced Surface Water Treatment Rule MR 9 2023
Interim Enhanced Surface Water Treatment Rule TT 8 2018
E. COLI MR 7 2011
Revised Total Coliform Rule TT 4 2018
Nitrate MR 3 2013
Revised Total Coliform Rule Other 3 2023

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 Sunset Lake Summer Home Owners.

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 CO0239725 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 Sunset Lake Summer Home Owners 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
2023 Surface Water Treatment Rule MR 9 SDWIS / CO0239725 / 0200
2023 Interim Enhanced Surface Water Treatment Rule MR 9 SDWIS / CO0239725 / 0300
2023 Revised Total Coliform Rule Other 3 SDWIS / CO0239725 / 8000
2018 Interim Enhanced Surface Water Treatment Rule TT 8 SDWIS / CO0239725 / 0300
2018 Revised Total Coliform Rule TT 4 SDWIS / CO0239725 / 8000
2013 Coliform (TCR) MR 29 SDWIS / CO0239725 / 3100
2013 Nitrate MR 3 SDWIS / CO0239725 / 1040
2012 Coliform (TCR) MCL 27 SDWIS / CO0239725 / 3100
2011 E. COLI MR 7 SDWIS / CO0239725 / 3014

How Sunset Lake Summer Home Owners Compares

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

Metric Sunset Lake Summer Home Owners Colorado avg Federal benchmark
Total violations 100 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 39 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 32 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 Sunset Lake Summer Home Owners water safe to drink? ▼
Sunset Lake Summer Home Owners (PWS ID: CO0239725) has 100 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 32 people using Surface Water sources.
How many people does Sunset Lake Summer Home Owners serve? ▼
Sunset Lake Summer Home Owners serves 32 people in Grand Junction, Colorado. It is a Private-owned system using Surface Water water sources with 28 service connections.
What type of violations does Sunset Lake Summer Home Owners have? ▼
Sunset Lake Summer Home Owners has 100 total violations: 39 health-based violations (MCL exceedances or treatment failures), 57 monitoring/reporting violations, and 12 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Sunset Lake Summer Home Owners water? ▼
No PFAS testing data is available for Sunset Lake Summer Home Owners under the EPA's UCMR5 monitoring program.
What water source does Sunset Lake Summer Home Owners use? ▼
Sunset Lake Summer Home Owners uses Surface Water 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.