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Community Water System · PWS WI8610550

Stetsonville Waterworks

Stetsonville, Wisconsin 54480-0219 - drinking water served from groundwater sources to 563 people, tracked in EPA SDWIS and UCMR5.

563
People served
66
EPA violations
17
Health-based
Untested
UCMR5 result

The verdict

EPA records 66 drinking-water violations at Stetsonville Waterworks, 26% of them health-based - above the Wisconsin per-system average.

66
Total EPA violations on record
26%
Health-based (MCL / treatment failure)
563
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Stetsonville Waterworks

Stetsonville Waterworks is a local-owned community water system that delivers drinking water to 563 residents in Stetsonville, Wisconsin (Taylor County) through 232 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 66 total violations for this system , of which 17 (26%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 43 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 Lead and Copper Rule, recorded in 23 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 Wisconsin, EPA tracks 10,988 public water systems serving 5,131,439 people, with 285,161 cumulative violations and 58,688 health-based violations on record. About 72% of systems in the state carry at least one violation, and state-wide the average per system is 26 violations. Statewide, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

Stetsonville Waterworks's 66 violations sit above the Wisconsin 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
563
Total Violations
66
Health-Based Violations
17
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
232
County
Taylor
School/Daycare
No
MCL Violations
0
Monitoring Violations
43
Treatment Tech Violations
17

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 23 2025
Lead and Copper Rule TT 14 2019
Coliform (TCR) MR 10 2012
Chlorine MR 10 2012
Public Notice Other 3 2024
Consumer Confidence Rule Other 2 2022
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 2016
LEAD AND COPPER RULE REVISIONS RPT 1 2024
LEAD AND COPPER RULE REVISIONS TT 1 2024

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 Stetsonville Waterworks.

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 WI8610550 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Wisconsin Drinking Water Authority

Wisconsin DNR, Drinking Water and Groundwater is the primacy agency that licenses and inspects Stetsonville Waterworks under EPA-delegated authority.

Open WI regulator portal

Source: Wisconsin DNR, Drinking Water and Groundwater

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 Lead and Copper Rule MR 23 SDWIS / WI8610550 / 5000
2024 Public Notice Other 3 SDWIS / WI8610550 / 7500
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / WI8610550 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / WI8610550 / 5200
2022 Consumer Confidence Rule Other 2 SDWIS / WI8610550 / 7000
2019 Lead and Copper Rule TT 14 SDWIS / WI8610550 / 5000
2016 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 SDWIS / WI8610550 / 0400
2012 Coliform (TCR) MR 10 SDWIS / WI8610550 / 3100
2012 Chlorine MR 10 SDWIS / WI8610550 / 0999

How Stetsonville Waterworks Compares

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

Metric Stetsonville Waterworks Wisconsin avg Federal benchmark
Total violations 66 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 17 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 563 467 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,988 regulated public water systems in Wisconsin.

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 Stetsonville Waterworks water safe to drink? ▼
Stetsonville Waterworks (PWS ID: WI8610550) has 66 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 563 people using Groundwater sources.
How many people does Stetsonville Waterworks serve? ▼
Stetsonville Waterworks serves 563 people in Stetsonville, Wisconsin. It is a Local-owned system using Groundwater water sources with 232 service connections.
What type of violations does Stetsonville Waterworks have? ▼
Stetsonville Waterworks has 66 total violations: 17 health-based violations (MCL exceedances or treatment failures), 43 monitoring/reporting violations, and 17 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Stetsonville Waterworks water? ▼
No PFAS testing data is available for Stetsonville Waterworks under the EPA's UCMR5 monitoring program.
What water source does Stetsonville Waterworks use? ▼
Stetsonville Waterworks 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.