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Non-Transient Non-Community Water System · PWS WI8550023

Shiloh Mennonite School

Boyceville, Wisconsin 54725 - drinking water served from groundwater sources to 60 people, tracked in EPA SDWIS and UCMR5.

60
People served
121
EPA violations
70
Health-based
Untested
UCMR5 result

The verdict

EPA records 121 drinking-water violations at Shiloh Mennonite School, 58% of them health-based - above the Wisconsin per-system average.

121
Total EPA violations on record
58%
Health-based (MCL / treatment failure)
60
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Shiloh Mennonite School

Shiloh Mennonite School is a private-owned non-transient non-community water system that delivers drinking water to 60 residents in Boyceville, Wisconsin (Rusk County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 121 total violations for this system , of which 70 (58%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 41 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 (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, 51 of 202 UCMR5-tested systems have reported PFAS detections (25.2%).

Shiloh Mennonite School's 121 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
60
Total Violations
121
Health-Based Violations
70
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Rusk
School/Daycare
Yes
MCL Violations
70
Monitoring Violations
41
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 47 2014
Arsenic MCL 23 2019
Public Notice Other 10 2018
Lead and Copper Rule MR 9 2020
Arsenic MR 9 2018
Coliform (TCR) MR 8 2014
Revised Total Coliform Rule MON 8 2018
E. COLI MR 7 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 Shiloh Mennonite School.

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 WI8550023 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 Shiloh Mennonite School 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 E. COLI MR 7 SDWIS / WI8550023 / 3014
2020 Lead and Copper Rule MR 9 SDWIS / WI8550023 / 5000
2019 Arsenic MCL 23 SDWIS / WI8550023 / 1005
2018 Public Notice Other 10 SDWIS / WI8550023 / 7500
2018 Arsenic MR 9 SDWIS / WI8550023 / 1005
2018 Revised Total Coliform Rule MON 8 SDWIS / WI8550023 / 8000
2014 Coliform (TCR) MCL 47 SDWIS / WI8550023 / 3100
2014 Coliform (TCR) MR 8 SDWIS / WI8550023 / 3100

How Shiloh Mennonite School Compares

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

Metric Shiloh Mennonite School Wisconsin avg Federal benchmark
Total violations 121 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 70 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 60 467 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 Shiloh Mennonite School water safe to drink? ▼
Shiloh Mennonite School (PWS ID: WI8550023) has 121 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does Shiloh Mennonite School serve? ▼
Shiloh Mennonite School serves 60 people in Boyceville, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Shiloh Mennonite School have? ▼
Shiloh Mennonite School has 121 total violations: 70 health-based violations (MCL exceedances or treatment failures), 41 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Shiloh Mennonite School water? ▼
No PFAS testing data is available for Shiloh Mennonite School under the EPA's UCMR5 monitoring program.
What water source does Shiloh Mennonite School use? ▼
Shiloh Mennonite School uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.