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Transient Non-Community Water System · PWS MO6281285

St Paul Knights of Columbus Hall

St Paul, Missouri 63366-0000 - drinking water served from groundwater sources to 30 people, tracked in EPA SDWIS and UCMR5.

30
People served
293
EPA violations
62
Health-based
Untested
UCMR5 result

The verdict

EPA records 293 drinking-water violations at St Paul Knights of Columbus Hall, 21% of them health-based - above the Missouri per-system average.

293
Total EPA violations on record
21%
Health-based (MCL / treatment failure)
30
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: St Paul Knights of Columbus Hall

St Paul Knights of Columbus Hall is a private-owned transient non-community water system that delivers drinking water to 30 residents in St Paul, Missouri (St. Charles County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 293 total violations for this system , of which 62 (21%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 230 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 216 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 Missouri, EPA tracks 2,823 public water systems serving 5,855,885 people, with 201,695 cumulative violations and 54,821 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 71.4 violations. Statewide, 162 of 230 UCMR5-tested systems have reported PFAS detections (70.4%).

St Paul Knights of Columbus Hall's 293 violations sit above the Missouri 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
30
Total Violations
293
Health-Based Violations
62
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
St. Charles
School/Daycare
No
MCL Violations
62
Monitoring Violations
230
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 216 2010
Coliform (TCR) MCL 62 2011
E. COLI MR 7 2014
Revised Total Coliform Rule MON 4 2023
Nitrate-Nitrite MR 3 2003

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 Paul Knights of Columbus Hall.

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 MO6281285 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Missouri Drinking Water Authority

Missouri DNR, Public Drinking Water Branch is the primacy agency that licenses and inspects St Paul Knights of Columbus Hall under EPA-delegated authority.

Open MO regulator portal

Source: Missouri DNR, Public Drinking Water Branch

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
2023 Revised Total Coliform Rule MON 4 SDWIS / MO6281285 / 8000
2014 E. COLI MR 7 SDWIS / MO6281285 / 3014
2011 Coliform (TCR) MCL 62 SDWIS / MO6281285 / 3100
2010 Coliform (TCR) MR 216 SDWIS / MO6281285 / 3100
2003 Nitrate-Nitrite MR 3 SDWIS / MO6281285 / 1038

How St Paul Knights of Columbus Hall Compares

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

Metric St Paul Knights of Columbus Hall Missouri avg Federal benchmark
Total violations 293 71.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 62 19.4 Indicates a contaminant exceeded a federal MCL
PFAS detection None 70.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 30 2,074 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,823 regulated public water systems in Missouri.

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 Paul Knights of Columbus Hall water safe to drink? ▼
St Paul Knights of Columbus Hall (PWS ID: MO6281285) has 293 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 30 people using Groundwater sources.
How many people does St Paul Knights of Columbus Hall serve? ▼
St Paul Knights of Columbus Hall serves 30 people in St Paul, Missouri. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does St Paul Knights of Columbus Hall have? ▼
St Paul Knights of Columbus Hall has 293 total violations: 62 health-based violations (MCL exceedances or treatment failures), 230 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in St Paul Knights of Columbus Hall water? ▼
No PFAS testing data is available for St Paul Knights of Columbus Hall under the EPA's UCMR5 monitoring program.
What water source does St Paul Knights of Columbus Hall use? ▼
St Paul Knights of Columbus Hall 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.