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Transient Non-Community Water System · PWS WI7500872

St Adalbert Catholic Church

Rosholt, Wisconsin 54473 - drinking water served from groundwater sources to 93 people, tracked in EPA SDWIS and UCMR5.

93
People served
250
EPA violations
22
Health-based
Untested
UCMR5 result

The verdict

EPA records 250 drinking-water violations at St Adalbert Catholic Church, 9% of them health-based - above the Wisconsin per-system average.

250
Total EPA violations on record
9%
Health-based (MCL / treatment failure)
93
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: St Adalbert Catholic Church

St Adalbert Catholic Church is a private-owned transient non-community water system that delivers drinking water to 93 residents in Rosholt, Wisconsin (Portage County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 250 total violations for this system , of which 22 (9%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 226 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 Nitrate-Nitrite, recorded in 20 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%).

St Adalbert Catholic Church's 250 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
93
Total Violations
250
Health-Based Violations
22
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Portage
School/Daycare
No
MCL Violations
20
Monitoring Violations
226
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate-Nitrite MCL 20 2025
Coliform (TCR) MR 8 2006
Lead and Copper Rule MR 7 2004
Nitrate MR 7 2004
Arsenic MR 6 2004
Barium MR 6 2004
Chromium MR 6 2004
Mercury MR 6 2004
Nitrate-Nitrite MR 6 2004
Nickel MR 6 2004
cis-1,2-Dichloroethylene MR 6 2004
Xylenes, Total MR 6 2004
1,1-Dichloroethylene MR 6 2004
1,1,1-Trichloroethane MR 6 2004
Trichloroethylene MR 6 2004
Benzene MR 6 2004
Toluene MR 6 2004
CHLOROBENZENE MR 6 2004
Styrene MR 6 2004
Thallium, Total MR 6 2004
1,2-Dichloroethane MR 6 2004
trans-1,2-Dichloroethylene MR 6 2004
1,2,4-Trichlorobenzene MR 6 2004
Beryllium, Total MR 6 2004
Ethylbenzene MR 6 2004
Antimony, Total MR 6 2004
p-Dichlorobenzene MR 6 2004
Selenium MR 6 2004
Fluoride MR 6 2004
1,1,2-Trichloroethane MR 6 2004

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 St Adalbert Catholic Church.

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 WI7500872 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 St Adalbert Catholic Church 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 Nitrate-Nitrite MCL 20 SDWIS / WI7500872 / 1038
2006 Coliform (TCR) MR 8 SDWIS / WI7500872 / 3100
2006 Public Notice Other 2 SDWIS / WI7500872 / 7500
2004 Lead and Copper Rule MR 7 SDWIS / WI7500872 / 5000
2004 Nitrate MR 7 SDWIS / WI7500872 / 1040
2004 Arsenic MR 6 SDWIS / WI7500872 / 1005
2004 Barium MR 6 SDWIS / WI7500872 / 1010
2004 Chromium MR 6 SDWIS / WI7500872 / 1020
2004 Mercury MR 6 SDWIS / WI7500872 / 1035
2004 Nitrate-Nitrite MR 6 SDWIS / WI7500872 / 1038
2004 Nickel MR 6 SDWIS / WI7500872 / 1036
2004 cis-1,2-Dichloroethylene MR 6 SDWIS / WI7500872 / 2380
2004 Xylenes, Total MR 6 SDWIS / WI7500872 / 2955
2004 1,1-Dichloroethylene MR 6 SDWIS / WI7500872 / 2977
2004 1,1,1-Trichloroethane MR 6 SDWIS / WI7500872 / 2981

How St Adalbert Catholic Church Compares

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

Metric St Adalbert Catholic Church Wisconsin avg Federal benchmark
Total violations 250 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 93 467 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 St Adalbert Catholic Church water safe to drink? ▼
St Adalbert Catholic Church (PWS ID: WI7500872) has 250 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 93 people using Groundwater sources.
How many people does St Adalbert Catholic Church serve? ▼
St Adalbert Catholic Church serves 93 people in Rosholt, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does St Adalbert Catholic Church have? ▼
St Adalbert Catholic Church has 250 total violations: 22 health-based violations (MCL exceedances or treatment failures), 226 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in St Adalbert Catholic Church water? ▼
No PFAS testing data is available for St Adalbert Catholic Church under the EPA's UCMR5 monitoring program.
What water source does St Adalbert Catholic Church use? ▼
St Adalbert Catholic Church uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.