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Community Water System · PWS WI8510132

Prentice Waterworks

Prentice, Wisconsin 54556 - drinking water served from groundwater sources to 660 people, tracked in EPA SDWIS and UCMR5.

660
People served
137
EPA violations
22
Health-based
Untested
UCMR5 result

The verdict

EPA records 137 drinking-water violations at Prentice Waterworks, 16% of them health-based - above the Wisconsin per-system average.

137
Total EPA violations on record
16%
Health-based (MCL / treatment failure)
660
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Prentice Waterworks

Prentice Waterworks is a local-owned community water system that delivers drinking water to 660 residents in Prentice, Wisconsin (Price County) through 350 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 137 total violations for this system , of which 22 (16%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 103 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 22 violations (MCL, 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 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%).

Prentice Waterworks's 137 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
660
Total Violations
137
Health-Based Violations
22
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
350
County
Price
School/Daycare
No
MCL Violations
22
Monitoring Violations
103
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 22 2014
Total Haloacetic Acids (HAA5) MR 5 2008
TTHM MR 5 2008
1,2,4-Trichlorobenzene MR 4 2023
DICHLOROMETHANE MR 4 2023
1,1-Dichloroethylene MR 4 2023
trans-1,2-Dichloroethylene MR 4 2023
1,1,1-Trichloroethane MR 4 2023
Trichloroethylene MR 4 2023
Tetrachloroethylene MR 4 2023
Toluene MR 4 2023
cis-1,2-Dichloroethylene MR 4 2023
p-Dichlorobenzene MR 4 2023
Public Notice Other 4 2023
CHLOROBENZENE MR 4 2023
Carbon tetrachloride MR 4 2023
Styrene MR 4 2023
o-Dichlorobenzene MR 4 2023
E. COLI MR 4 2020
Xylenes, Total MR 4 2023
Benzene MR 4 2023
Ethylbenzene MR 4 2023
1,2-Dichloropropane MR 4 2023
1,1,2-Trichloroethane MR 4 2023
1,2-Dichloroethane MR 4 2023
Vinyl chloride MR 4 2023
Coliform (TCR) MR 3 2001
Consumer Confidence Rule Other 2 2015
Chlorine MR 2 2009

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 Prentice 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 WI8510132 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 Prentice 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
2023 1,2,4-Trichlorobenzene MR 4 SDWIS / WI8510132 / 2378
2023 DICHLOROMETHANE MR 4 SDWIS / WI8510132 / 2964
2023 1,1-Dichloroethylene MR 4 SDWIS / WI8510132 / 2977
2023 trans-1,2-Dichloroethylene MR 4 SDWIS / WI8510132 / 2979
2023 1,1,1-Trichloroethane MR 4 SDWIS / WI8510132 / 2981
2023 Trichloroethylene MR 4 SDWIS / WI8510132 / 2984
2023 Tetrachloroethylene MR 4 SDWIS / WI8510132 / 2987
2023 Toluene MR 4 SDWIS / WI8510132 / 2991
2023 cis-1,2-Dichloroethylene MR 4 SDWIS / WI8510132 / 2380
2023 p-Dichlorobenzene MR 4 SDWIS / WI8510132 / 2969
2023 Public Notice Other 4 SDWIS / WI8510132 / 7500
2023 CHLOROBENZENE MR 4 SDWIS / WI8510132 / 2989
2023 Carbon tetrachloride MR 4 SDWIS / WI8510132 / 2982
2023 Styrene MR 4 SDWIS / WI8510132 / 2996
2023 o-Dichlorobenzene MR 4 SDWIS / WI8510132 / 2968

How Prentice Waterworks Compares

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

Metric Prentice Waterworks Wisconsin avg Federal benchmark
Total violations 137 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 22 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 660 467 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 Prentice Waterworks water safe to drink? ▼
Prentice Waterworks (PWS ID: WI8510132) has 137 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 660 people using Groundwater sources.
How many people does Prentice Waterworks serve? ▼
Prentice Waterworks serves 660 people in Prentice, Wisconsin. It is a Local-owned system using Groundwater water sources with 350 service connections.
What type of violations does Prentice Waterworks have? ▼
Prentice Waterworks has 137 total violations: 22 health-based violations (MCL exceedances or treatment failures), 103 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Prentice Waterworks water? ▼
No PFAS testing data is available for Prentice Waterworks under the EPA's UCMR5 monitoring program.
What water source does Prentice Waterworks use? ▼
Prentice 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.