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Community Water System · PWS WI8580535

S and J Wild River MHP

Hayward, Wisconsin 54843 - drinking water served from groundwater sources to 90 people, tracked in EPA SDWIS and UCMR5.

90
People served
644
EPA violations
28
Health-based
Untested
UCMR5 result

The verdict

EPA records 644 drinking-water violations at S and J Wild River MHP, 4% of them health-based - above the Wisconsin per-system average.

644
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
90
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: S and J Wild River MHP

S and J Wild River MHP is a private-owned community water system that delivers drinking water to 90 residents in Hayward, Wisconsin (Sawyer County) through 36 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 644 total violations for this system , of which 28 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 588 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 47 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, 51 of 202 UCMR5-tested systems have reported PFAS detections (25.2%).

S and J Wild River MHP's 644 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
90
Total Violations
644
Health-Based Violations
28
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
36
County
Sawyer
School/Daycare
No
MCL Violations
24
Monitoring Violations
588
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 47 2015
Lead and Copper Rule MR 40 2023
Revised Total Coliform Rule MON 28 2024
Coliform (TCR) MCL 24 2012
Nitrate MR 22 2021
Consumer Confidence Rule Other 13 2021
1,2,4-Trichlorobenzene MR 12 2021
DICHLOROMETHANE MR 12 2021
trans-1,2-Dichloroethylene MR 12 2021
1,2-Dichloroethane MR 12 2021
1,1,1-Trichloroethane MR 12 2021
Carbon tetrachloride MR 12 2021
Trichloroethylene MR 12 2021
CHLOROBENZENE MR 12 2021
Benzene MR 12 2021
Toluene MR 12 2021
Styrene MR 12 2021
Ethylbenzene MR 12 2021
1,1,2-Trichloroethane MR 12 2021
1,2-Dichloropropane MR 12 2021
1,1-Dichloroethylene MR 12 2021
Vinyl chloride MR 12 2021
o-Dichlorobenzene MR 12 2021
Xylenes, Total MR 12 2021
cis-1,2-Dichloroethylene MR 12 2021
Tetrachloroethylene MR 12 2021
p-Dichlorobenzene MR 12 2021
Gross Alpha, Excl. Radon and U MR 10 2021
Public Notice Other 8 2022
Combined Radium (-226 and -228) MR 7 2021

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 S and J Wild River MHP.

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 WI8580535 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 S and J Wild River MHP 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
2024 Revised Total Coliform Rule MON 28 SDWIS / WI8580535 / 8000
2024 Lead and Copper Rule TT 4 SDWIS / WI8580535 / 5000
2023 Lead and Copper Rule MR 40 SDWIS / WI8580535 / 5000
2022 Public Notice Other 8 SDWIS / WI8580535 / 7500
2021 Nitrate MR 22 SDWIS / WI8580535 / 1040
2021 Consumer Confidence Rule Other 13 SDWIS / WI8580535 / 7000
2021 1,2,4-Trichlorobenzene MR 12 SDWIS / WI8580535 / 2378
2021 DICHLOROMETHANE MR 12 SDWIS / WI8580535 / 2964
2021 trans-1,2-Dichloroethylene MR 12 SDWIS / WI8580535 / 2979
2021 1,2-Dichloroethane MR 12 SDWIS / WI8580535 / 2980
2021 1,1,1-Trichloroethane MR 12 SDWIS / WI8580535 / 2981
2021 Carbon tetrachloride MR 12 SDWIS / WI8580535 / 2982
2021 Trichloroethylene MR 12 SDWIS / WI8580535 / 2984
2021 CHLOROBENZENE MR 12 SDWIS / WI8580535 / 2989
2021 Benzene MR 12 SDWIS / WI8580535 / 2990

How S and J Wild River MHP Compares

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

Metric S and J Wild River MHP Wisconsin avg Federal benchmark
Total violations 644 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 28 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 25.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 90 467 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 S and J Wild River MHP water safe to drink? ▼
S and J Wild River MHP (PWS ID: WI8580535) has 644 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 90 people using Groundwater sources.
How many people does S and J Wild River MHP serve? ▼
S and J Wild River MHP serves 90 people in Hayward, Wisconsin. It is a Private-owned system using Groundwater water sources with 36 service connections.
What type of violations does S and J Wild River MHP have? ▼
S and J Wild River MHP has 644 total violations: 28 health-based violations (MCL exceedances or treatment failures), 588 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in S and J Wild River MHP water? ▼
No PFAS testing data is available for S and J Wild River MHP under the EPA's UCMR5 monitoring program.
What water source does S and J Wild River MHP use? ▼
S and J Wild River MHP 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.