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Community Water System · PWS MN1730033

Saint Joseph

St. Joseph, Minnesota 56374 - drinking water served from groundwater sources to 7,100 people, tracked in EPA SDWIS and UCMR5.

7,100
People served
19
EPA violations
6
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 19 drinking-water violations at Saint Joseph, 32% of them health-based - above the Minnesota per-system average.

19
Total EPA violations on record
32%
Health-based (MCL / treatment failure)
7,100
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Saint Joseph

Saint Joseph is a local-owned community water system that delivers drinking water to 7,100 residents in St. Joseph, Minnesota (Stearns County) through 1,872 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 19 total violations for this system , of which 6 (32%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 10 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 Coliform (TCR), recorded in 9 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Minnesota, EPA tracks 6,557 public water systems serving 5,239,398 people, with 59,895 cumulative violations and 36,496 health-based violations on record. About 52% of systems in the state carry at least one violation, and state-wide the average per system is 9.1 violations. Statewide, 149 of 196 UCMR5-tested systems have reported PFAS detections (76%).

Saint Joseph's 19 violations sit above the Minnesota 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
7,100
Total Violations
19
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,872
County
Stearns
School/Daycare
No
MCL Violations
6
Monitoring Violations
10
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 9 1996
Coliform (TCR) MCL 6 2000
LEAD AND COPPER RULE REVISIONS RPT 2 2025
Lead and Copper Rule MR 1 2021

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFBA 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 5/28/2024 <6.00 ppt 6.00 ppt Not Detected
6:2 FTS 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
PFMPA 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
NEtFOSAA 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
PFMBA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 5/28/2024 <7.00 ppt 7.00 ppt Not Detected
PFEESA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 5/28/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeS 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpS 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
PFOA 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
ADONA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFTA 5/28/2024 <8.00 ppt 8.00 ppt Not Detected
PFOS 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 5/28/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 5/28/2024 <2.00 ppt 2.00 ppt Not Detected
PFHpA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
PFTA 5/28/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 5/28/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 5/28/2024 <6.00 ppt 6.00 ppt Not Detected
PFBS 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
PFOA 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
PFUnA 5/28/2024 <2.00 ppt 2.00 ppt Not Detected
8:2 FTS 5/28/2024 <5.00 ppt 5.00 ppt Not Detected
PFPeS 5/28/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 5/28/2024 <20.00 ppt 20.00 ppt Not Detected
PFEESA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 5/28/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 5/28/2024 <4.00 ppt 4.00 ppt Not Detected

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 Saint Joseph.

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 MN1730033 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Minnesota Drinking Water Authority

Minnesota's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find MN regulator via EPA SDWIS

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 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / MN1730033 / 5200
2021 Lead and Copper Rule MR 1 SDWIS / MN1730033 / 5000
2000 Coliform (TCR) MCL 6 SDWIS / MN1730033 / 3100
1996 Coliform (TCR) MR 9 SDWIS / MN1730033 / 3100

How Saint Joseph Compares

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

Metric Saint Joseph Minnesota avg Federal benchmark
Total violations 19 9.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 5.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 76% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 7,100 799 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 6,557 regulated public water systems in Minnesota.

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 Saint Joseph water safe to drink?
Saint Joseph (PWS ID: MN1730033) has 19 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 7,100 people using Groundwater sources.
How many people does Saint Joseph serve?
Saint Joseph serves 7,100 people in St. Joseph, Minnesota. It is a Local-owned system using Groundwater water sources with 1,872 service connections.
What type of violations does Saint Joseph have?
Saint Joseph has 19 total violations: 6 health-based violations (MCL exceedances or treatment failures), 10 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Saint Joseph water?
No. Saint Joseph was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Saint Joseph use?
Saint Joseph 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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.