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Community Water System · PWS IL1631300

Smithton

Smithton, Illinois 62285 - drinking water served from surface water sources to 4,006 people, tracked in EPA SDWIS and UCMR5.

4,006
People served
65
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 65 drinking-water violations at Smithton, 15% of them health-based - below the Illinois per-system average.

65
Total EPA violations on record
15%
Health-based (MCL / treatment failure)
4,006
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Smithton

Smithton is a local-owned community water system that delivers drinking water to 4,006 residents in Smithton, Illinois (St. Clair County) through 1,450 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 65 total violations for this system , of which 10 (15%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 44 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 4 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 Illinois, EPA tracks 5,117 public water systems serving 12,576,876 people, with 355,322 cumulative violations and 52,932 health-based violations on record. About 81% of systems in the state carry at least one violation, and state-wide the average per system is 69.4 violations. Statewide, 199 of 487 UCMR5-tested systems have reported PFAS detections (40.9%).

Smithton's 65 violations sit below the Illinois 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
4,006
Total Violations
65
Health-Based Violations
10
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,450
County
St. Clair
School/Daycare
No
MCL Violations
6
Monitoring Violations
44
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 4 1999
Atrazine MCL 4 1995
Gross Alpha, Excl. Radon and U MR 4 2004
Long Term 2 Enhanced Surface Water Treatment Rule TT 4 2014
Consumer Confidence Rule Other 4 2023
Cadmium MR 4 1987
Fluoride MR 4 1987
Combined Radium (-226 and -228) MR 4 2004
Arsenic MR 4 1987
Nitrate MR 4 1987
Selenium MR 4 1987
Chromium MR 4 1987
Barium MR 4 1987
Mercury MR 4 1987
Coliform (TCR) MCL 2 1993

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 Smithton.

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 IL1631300 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Illinois Drinking Water Authority

Illinois EPA, Bureau of Water is the primacy agency that licenses and inspects Smithton under EPA-delegated authority.

Open IL regulator portal

Source: Illinois EPA, Bureau of Water

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 Consumer Confidence Rule Other 4 SDWIS / IL1631300 / 7000
2014 Long Term 2 Enhanced Surface Water Treatment Rule TT 4 SDWIS / IL1631300 / 0800
2004 Gross Alpha, Excl. Radon and U MR 4 SDWIS / IL1631300 / 4000
2004 Combined Radium (-226 and -228) MR 4 SDWIS / IL1631300 / 4010
1999 Coliform (TCR) MR 4 SDWIS / IL1631300 / 3100
1995 Atrazine MCL 4 SDWIS / IL1631300 / 2050
1993 Coliform (TCR) MCL 2 SDWIS / IL1631300 / 3100
1987 Cadmium MR 4 SDWIS / IL1631300 / 1015
1987 Fluoride MR 4 SDWIS / IL1631300 / 1025
1987 Arsenic MR 4 SDWIS / IL1631300 / 1005
1987 Nitrate MR 4 SDWIS / IL1631300 / 1040
1987 Selenium MR 4 SDWIS / IL1631300 / 1045
1987 Chromium MR 4 SDWIS / IL1631300 / 1020
1987 Barium MR 4 SDWIS / IL1631300 / 1010
1987 Mercury MR 4 SDWIS / IL1631300 / 1035

How Smithton Compares

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

Metric Smithton Illinois avg Federal benchmark
Total violations 65 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 10.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 40.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,006 2,458 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,117 regulated public water systems in Illinois.

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 Smithton water safe to drink? ▼
Smithton (PWS ID: IL1631300) has 65 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 4,006 people using Surface Water sources.
How many people does Smithton serve? ▼
Smithton serves 4,006 people in Smithton, Illinois. It is a Local-owned system using Surface Water water sources with 1,450 service connections.
What type of violations does Smithton have? ▼
Smithton has 65 total violations: 10 health-based violations (MCL exceedances or treatment failures), 44 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Smithton water? ▼
No PFAS testing data is available for Smithton under the EPA's UCMR5 monitoring program.
What water source does Smithton use? ▼
Smithton uses Surface Water 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. 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.