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Community Water System · PWS WY5600217

Skyline Ranch I&s District

Wilson, Wyoming 83014 - drinking water served from groundwater sources to 260 people, tracked in EPA SDWIS and UCMR5.

260
People served
88
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 88 drinking-water violations at Skyline Ranch I&s District - above the Wyoming per-system average.

88
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
260
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Skyline Ranch I&s District

Skyline Ranch I&s District is a private-owned community water system that delivers drinking water to 260 residents in Wilson, Wyoming (Teton County) through 83 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 88 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 85 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 5 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%).

Skyline Ranch I&s District's 88 violations sit above 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
260
Total Violations
88
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
83
County
Teton
School/Daycare
No
MCL Violations
0
Monitoring Violations
85
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 5 2003
Gross Alpha, Excl. Radon and U MR 4 1997
Lead and Copper Rule MR 3 2012
Nitrate MR 2 1997
Cadmium MR 2 1999
Arsenic MR 2 1999
Barium MR 2 1999
Consumer Confidence Rule Other 2 2018
Selenium MR 2 1999
Mercury MR 2 1999
Endrin MR 2 1999
Toxaphene MR 2 1999
Fluoride MR 2 1999
Chromium MR 2 1999
Methoxychlor MR 2 1999
BHC-GAMMA MR 2 1999
1,2-Dichloroethane MR 1 1999
p-Dichlorobenzene MR 1 1999
Trichloroethylene MR 1 1999
Vinyl chloride MR 1 1999
cis-1,2-Dichloroethylene MR 1 1999
CHLOROBENZENE MR 1 1999
o-Dichlorobenzene MR 1 1999
Tetrachloroethylene MR 1 1999
Xylenes, Total MR 1 1999
DICHLOROMETHANE MR 1 1999
1,2,4-Trichlorobenzene MR 1 1999
Nickel MR 1 1999
Beryllium, Total MR 1 1999
Thallium, Total MR 1 1999

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 Skyline Ranch I&s District.

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 WY5600217 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
2018 Consumer Confidence Rule Other 2 SDWIS / WY5600217 / 7000
2012 Lead and Copper Rule MR 3 SDWIS / WY5600217 / 5000
2003 Coliform (TCR) MR 5 SDWIS / WY5600217 / 3100
1999 Cadmium MR 2 SDWIS / WY5600217 / 1015
1999 Arsenic MR 2 SDWIS / WY5600217 / 1005
1999 Barium MR 2 SDWIS / WY5600217 / 1010
1999 Selenium MR 2 SDWIS / WY5600217 / 1045
1999 Mercury MR 2 SDWIS / WY5600217 / 1035
1999 Endrin MR 2 SDWIS / WY5600217 / 2005
1999 Toxaphene MR 2 SDWIS / WY5600217 / 2020
1999 Fluoride MR 2 SDWIS / WY5600217 / 1025
1999 Chromium MR 2 SDWIS / WY5600217 / 1020
1999 Methoxychlor MR 2 SDWIS / WY5600217 / 2015
1999 BHC-GAMMA MR 2 SDWIS / WY5600217 / 2010
1999 1,2-Dichloroethane MR 1 SDWIS / WY5600217 / 2980

How Skyline Ranch I&s District Compares

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

Metric Skyline Ranch I&s District Wyoming avg Federal benchmark
Total violations 88 42.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 260 835 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 Skyline Ranch I&s District water safe to drink? ▼
Skyline Ranch I&s District (PWS ID: WY5600217) has 88 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 260 people using Groundwater sources.
How many people does Skyline Ranch I&s District serve? ▼
Skyline Ranch I&s District serves 260 people in Wilson, Wyoming. It is a Private-owned system using Groundwater water sources with 83 service connections.
What type of violations does Skyline Ranch I&s District have? ▼
Skyline Ranch I&s District has 88 total violations: 0 health-based violations (MCL exceedances or treatment failures), 85 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Skyline Ranch I&s District water? ▼
No PFAS testing data is available for Skyline Ranch I&s District under the EPA's UCMR5 monitoring program.
What water source does Skyline Ranch I&s District use? ▼
Skyline Ranch I&s District 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.