PlainWater

Transient Non-Community Water System · PWS WI1140821

St Johns Catholic Church & Parsonage

Rubicon, Wisconsin 53078 - drinking water served from groundwater sources to 252 people, tracked in EPA SDWIS and UCMR5.

252
People served
7
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 7 drinking-water violations at St Johns Catholic Church & Parsonage, 71% of them health-based - below the Wisconsin per-system average.

7
Total EPA violations on record
71%
Health-based (MCL / treatment failure)
252
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: St Johns Catholic Church & Parsonage

St Johns Catholic Church & Parsonage is a private-owned transient non-community water system that delivers drinking water to 252 residents in Rubicon, Wisconsin (Dodge County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 7 total violations for this system , of which 5 (71%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 2 monitoring and reporting violations are on file. The most recent violation on record dates to 2009.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 5 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 Johns Catholic Church & Parsonage's 7 violations sit below 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
252
Total Violations
7
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
2
County
Dodge
School/Daycare
No
MCL Violations
5
Monitoring Violations
2
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 5 2009
Nitrate MR 2 1994

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 Johns Catholic Church & Parsonage.

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 WI1140821 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 Johns Catholic Church & Parsonage 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
2009 Coliform (TCR) MCL 5 SDWIS / WI1140821 / 3100
1994 Nitrate MR 2 SDWIS / WI1140821 / 1040

How St Johns Catholic Church & Parsonage Compares

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

Metric St Johns Catholic Church & Parsonage Wisconsin avg Federal benchmark
Total violations 7 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 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 252 467 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 Johns Catholic Church & Parsonage water safe to drink?
St Johns Catholic Church & Parsonage (PWS ID: WI1140821) has 7 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 252 people using Groundwater sources.
How many people does St Johns Catholic Church & Parsonage serve?
St Johns Catholic Church & Parsonage serves 252 people in Rubicon, Wisconsin. It is a Private-owned system using Groundwater water sources with 2 service connections.
What type of violations does St Johns Catholic Church & Parsonage have?
St Johns Catholic Church & Parsonage has 7 total violations: 5 health-based violations (MCL exceedances or treatment failures), 2 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in St Johns Catholic Church & Parsonage water?
No PFAS testing data is available for St Johns Catholic Church & Parsonage under the EPA's UCMR5 monitoring program.
What water source does St Johns Catholic Church & Parsonage use?
St Johns Catholic Church & Parsonage 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.
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.