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Community Water System · PWS WY5600105

Wamsutter, Town Of

Wamsutter, Wyoming 82336 - drinking water served from groundwater sources to 500 people, tracked in EPA SDWIS and UCMR5.

500
People served
51
EPA violations
20
Health-based
Untested
UCMR5 result

The verdict

EPA records 51 drinking-water violations at Wamsutter, Town Of, 39% of them health-based - above the Wyoming per-system average.

51
Total EPA violations on record
39%
Health-based (MCL / treatment failure)
500
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Wamsutter, Town Of

Wamsutter, Town Of is a local-owned community water system that delivers drinking water to 500 residents in Wamsutter, Wyoming (Sweetwater County) through 178 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 51 total violations for this system , of which 20 (39%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 22 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 Groundwater Rule, recorded in 17 violations (TT, health-based). 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%).

Wamsutter, Town Of's 51 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
500
Total Violations
51
Health-Based Violations
20
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
178
County
Sweetwater
School/Daycare
No
MCL Violations
3
Monitoring Violations
22
Treatment Tech Violations
17

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule TT 17 2018
Gross Alpha, Excl. Radon and U MR 7 2001
Consumer Confidence Rule Other 4 2015
Coliform (TCR) MR 3 1997
Coliform (TCR) MCL 3 2010
Lead and Copper Rule MR 2 2000
TTHM MR 2 2014
Total Haloacetic Acids (HAA5) MR 2 2014
E. COLI MR 2 2010
Nitrate-Nitrite MR 2 2011
Combined Radium (-226 and -228) MR 1 1976
Nitrate MR 1 1996
Groundwater Rule Other 1 2014

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 Wamsutter, Town Of.

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 WY5600105 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 Groundwater Rule TT 17 SDWIS / WY5600105 / 0700
2015 Consumer Confidence Rule Other 4 SDWIS / WY5600105 / 7000
2014 TTHM MR 2 SDWIS / WY5600105 / 2950
2014 Total Haloacetic Acids (HAA5) MR 2 SDWIS / WY5600105 / 2456
2014 Groundwater Rule Other 1 SDWIS / WY5600105 / 0700
2011 Nitrate-Nitrite MR 2 SDWIS / WY5600105 / 1038
2010 Coliform (TCR) MCL 3 SDWIS / WY5600105 / 3100
2010 E. COLI MR 2 SDWIS / WY5600105 / 3014
2001 Gross Alpha, Excl. Radon and U MR 7 SDWIS / WY5600105 / 4000
2000 Lead and Copper Rule MR 2 SDWIS / WY5600105 / 5000
1997 Coliform (TCR) MR 3 SDWIS / WY5600105 / 3100
1996 Nitrate MR 1 SDWIS / WY5600105 / 1040
1976 Combined Radium (-226 and -228) MR 1 SDWIS / WY5600105 / 4010

How Wamsutter, Town Of Compares

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

Metric Wamsutter, Town Of Wyoming avg Federal benchmark
Total violations 51 42.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 20 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 500 835 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 Wamsutter, Town Of water safe to drink? ▼
Wamsutter, Town Of (PWS ID: WY5600105) has 51 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 500 people using Groundwater sources.
How many people does Wamsutter, Town Of serve? ▼
Wamsutter, Town Of serves 500 people in Wamsutter, Wyoming. It is a Local-owned system using Groundwater water sources with 178 service connections.
What type of violations does Wamsutter, Town Of have? ▼
Wamsutter, Town Of has 51 total violations: 20 health-based violations (MCL exceedances or treatment failures), 22 monitoring/reporting violations, and 17 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Wamsutter, Town Of water? ▼
No PFAS testing data is available for Wamsutter, Town Of under the EPA's UCMR5 monitoring program.
What water source does Wamsutter, Town Of use? ▼
Wamsutter, Town Of 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.