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Community Water System · PWS WY5600780

Cedar Hills Water Association

Gillette, Wyoming 82717 - drinking water served from groundwater sources to 258 people, tracked in EPA SDWIS and UCMR5.

258
People served
29
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 29 drinking-water violations at Cedar Hills Water Association, 7% of them health-based - below the Wyoming per-system average.

29
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
258
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Cedar Hills Water Association

Cedar Hills Water Association is a private-owned community water system that delivers drinking water to 258 residents in Gillette, Wyoming (Campbell County) through 100 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 29 total violations for this system , of which 2 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 24 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Combined Uranium, recorded in 4 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 Wyoming, EPA tracks 766 public water systems serving 639,288 people, with 32,465 cumulative violations and 4,023 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 42.4 violations. Statewide, 18 of 33 UCMR5-tested systems have reported PFAS detections (54.5%).

Cedar Hills Water Association's 29 violations sit below the Wyoming 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
258
Total Violations
29
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
100
County
Campbell
School/Daycare
No
MCL Violations
2
Monitoring Violations
24
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Uranium MR 4 2016
Combined Radium (-226 and -228) MR 4 2016
Radium-226 MR 4 2016
Gross Alpha, Excl. Radon and U MR 4 2016
Radium-228 MR 4 2016
Coliform (TCR) MR 3 1992
Fluoride MCL 2 1992
Lead and Copper Rule MR 1 2020

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 Cedar Hills Water Association.

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 WY5600780 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Wyoming Drinking Water Authority

Wyoming's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find WY regulator via EPA SDWIS

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
2020 Lead and Copper Rule MR 1 SDWIS / WY5600780 / 5000
2016 Combined Uranium MR 4 SDWIS / WY5600780 / 4006
2016 Combined Radium (-226 and -228) MR 4 SDWIS / WY5600780 / 4010
2016 Radium-226 MR 4 SDWIS / WY5600780 / 4020
2016 Gross Alpha, Excl. Radon and U MR 4 SDWIS / WY5600780 / 4000
2016 Radium-228 MR 4 SDWIS / WY5600780 / 4030
1992 Coliform (TCR) MR 3 SDWIS / WY5600780 / 3100
1992 Fluoride MCL 2 SDWIS / WY5600780 / 1025

How Cedar Hills Water Association Compares

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

Metric Cedar Hills Water Association Wyoming avg Federal benchmark
Total violations 29 42.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 54.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 258 835 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 766 regulated public water systems in Wyoming.

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 Cedar Hills Water Association water safe to drink? ▼
Cedar Hills Water Association (PWS ID: WY5600780) has 29 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 258 people using Groundwater sources.
How many people does Cedar Hills Water Association serve? ▼
Cedar Hills Water Association serves 258 people in Gillette, Wyoming. It is a Private-owned system using Groundwater water sources with 100 service connections.
What type of violations does Cedar Hills Water Association have? ▼
Cedar Hills Water Association has 29 total violations: 2 health-based violations (MCL exceedances or treatment failures), 24 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Cedar Hills Water Association water? ▼
No PFAS testing data is available for Cedar Hills Water Association under the EPA's UCMR5 monitoring program.
What water source does Cedar Hills Water Association use? ▼
Cedar Hills Water Association uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.