Non-Transient Non-Community Water System · PWS WI6100349

Thorp Mennonite Church & School

Thorp, Wisconsin 54771 - drinking water served from groundwater sources to 138 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

138
People served: 347
EPA violations: 27
Health-based: Untested
UCMR5 result

The verdict

EPA records 347 drinking-water violations at Thorp Mennonite Church & School, 8% of them health-based - above the Wisconsin per-system average.

347
Total EPA violations on record: 8%
Health-based (MCL / treatment failure): 138
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Thorp Mennonite Church & School

Thorp Mennonite Church & School is a private-owned non-transient non-community water system that delivers drinking water to 138 residents in Thorp, Wisconsin (Clark County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 347 total violations for this system , of which 27 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 301 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 39 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%).

Thorp Mennonite Church & School's 347 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

138

Total Violations

347

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Non-Transient Non-Community
Owner Type: Private
Connections: 1
County: Clark
School/Daycare: No
MCL Violations: 15
Monitoring Violations: 301
Treatment Tech Violations: 12

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Coliform (TCR)	MR	39	2015
Lead and Copper Rule	MR	25	2017
Public Notice	Other	19	2014
Coliform (TCR)	MCL	15	2007
E. COLI	MR	13	2014
Lead and Copper Rule	TT	12	2007
1,2,4-Trichlorobenzene	MR	10	2011
cis-1,2-Dichloroethylene	MR	10	2011
Xylenes, Total	MR	10	2011
DICHLOROMETHANE	MR	10	2011
p-Dichlorobenzene	MR	10	2011
Vinyl chloride	MR	10	2011
trans-1,2-Dichloroethylene	MR	10	2011
1,1,1-Trichloroethane	MR	10	2011
Carbon tetrachloride	MR	10	2011
1,2-Dichloropropane	MR	10	2011
Trichloroethylene	MR	10	2011
1,1,2-Trichloroethane	MR	10	2011
Ethylbenzene	MR	10	2011
Nitrate	MR	10	2011
CHLOROBENZENE	MR	10	2011
Tetrachloroethylene	MR	10	2011
1,1-Dichloroethylene	MR	10	2011
o-Dichlorobenzene	MR	10	2011
Benzene	MR	10	2011
1,2-Dichloroethane	MR	10	2011
Styrene	MR	10	2011
Toluene	MR	10	2011
Revised Total Coliform Rule	MON	4	2016

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 Thorp Mennonite Church & 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 WI6100349 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 Thorp Mennonite Church & 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
2017	Lead and Copper Rule	MR	25	SDWIS / WI6100349 / 5000
2016	Revised Total Coliform Rule	MON	4	SDWIS / WI6100349 / 8000
2015	Coliform (TCR)	MR	39	SDWIS / WI6100349 / 3100
2014	Public Notice	Other	19	SDWIS / WI6100349 / 7500
2014	E. COLI	MR	13	SDWIS / WI6100349 / 3014
2011	1,2,4-Trichlorobenzene	MR	10	SDWIS / WI6100349 / 2378
2011	cis-1,2-Dichloroethylene	MR	10	SDWIS / WI6100349 / 2380
2011	Xylenes, Total	MR	10	SDWIS / WI6100349 / 2955
2011	DICHLOROMETHANE	MR	10	SDWIS / WI6100349 / 2964
2011	p-Dichlorobenzene	MR	10	SDWIS / WI6100349 / 2969
2011	Vinyl chloride	MR	10	SDWIS / WI6100349 / 2976
2011	trans-1,2-Dichloroethylene	MR	10	SDWIS / WI6100349 / 2979
2011	1,1,1-Trichloroethane	MR	10	SDWIS / WI6100349 / 2981
2011	Carbon tetrachloride	MR	10	SDWIS / WI6100349 / 2982
2011	1,2-Dichloropropane	MR	10	SDWIS / WI6100349 / 2983

How Thorp Mennonite Church & School Compares

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

Metric	Thorp Mennonite Church & School	Wisconsin avg	Federal benchmark
Total violations	347	26	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	27	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	138	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 Thorp Mennonite Church & School water safe to drink? ▼

Thorp Mennonite Church & School (PWS ID: WI6100349) has 347 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 138 people using Groundwater sources.

How many people does Thorp Mennonite Church & School serve? ▼

Thorp Mennonite Church & School serves 138 people in Thorp, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.

What type of violations does Thorp Mennonite Church & School have? ▼

Thorp Mennonite Church & School has 347 total violations: 27 health-based violations (MCL exceedances or treatment failures), 301 monitoring/reporting violations, and 12 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Thorp Mennonite Church & School water? ▼

No PFAS testing data is available for Thorp Mennonite Church & School under the EPA's UCMR5 monitoring program.

What water source does Thorp Mennonite Church & School use? ▼

Thorp Mennonite Church & 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.