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Community Water System · PWS IL1850150

Keensburg

Keensburg, Illinois 62852 - drinking water served from groundwater sources to 234 people, tracked in EPA SDWIS and UCMR5.

234
People served
92
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 92 drinking-water violations at Keensburg, 2% of them health-based - above the Illinois per-system average.

92
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
234
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Keensburg

Keensburg is a local-owned community water system that delivers drinking water to 234 residents in Keensburg, Illinois (Wabash County) through 109 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 92 total violations for this system , of which 2 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 82 monitoring and reporting violations are on file. The most recent violation on record dates to 2001.

The most frequently cited contaminant at this system is Xylenes, Total, 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, 123 of 487 UCMR5-tested systems have reported PFAS detections (25.3%).

Keensburg's 92 violations sit above 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
234
Total Violations
92
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
109
County
Wabash
School/Daycare
No
MCL Violations
2
Monitoring Violations
82
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Xylenes, Total MR 4 1995
1,1-Dichloroethylene MR 4 1995
trans-1,2-Dichloroethylene MR 4 1995
Trichloroethylene MR 4 1995
Tetrachloroethylene MR 4 1995
Toluene MR 4 1995
Ethylbenzene MR 4 1995
DICHLOROMETHANE MR 4 1995
Styrene MR 4 1995
cis-1,2-Dichloroethylene MR 4 1995
1,2,4-Trichlorobenzene MR 4 1995
Benzene MR 4 1995
1,1,1-Trichloroethane MR 4 1995
p-Dichlorobenzene MR 4 1995
Carbon tetrachloride MR 4 1995
CHLOROBENZENE MR 4 1995
1,2-Dichloroethane MR 4 1995
1,2-Dichloropropane MR 4 1995
o-Dichlorobenzene MR 4 1995
1,1,2-Trichloroethane MR 4 1995
Coliform (TCR) MCL 2 2001
Lead and Copper Rule MR 1 1995
Gross Alpha, Excl. Radon and U MR 1 1977

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 Keensburg.

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 IL1850150 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 Keensburg 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
2001 Coliform (TCR) MCL 2 SDWIS / IL1850150 / 3100
1995 Xylenes, Total MR 4 SDWIS / IL1850150 / 2955
1995 1,1-Dichloroethylene MR 4 SDWIS / IL1850150 / 2977
1995 trans-1,2-Dichloroethylene MR 4 SDWIS / IL1850150 / 2979
1995 Trichloroethylene MR 4 SDWIS / IL1850150 / 2984
1995 Tetrachloroethylene MR 4 SDWIS / IL1850150 / 2987
1995 Toluene MR 4 SDWIS / IL1850150 / 2991
1995 Ethylbenzene MR 4 SDWIS / IL1850150 / 2992
1995 DICHLOROMETHANE MR 4 SDWIS / IL1850150 / 2964
1995 Styrene MR 4 SDWIS / IL1850150 / 2996
1995 cis-1,2-Dichloroethylene MR 4 SDWIS / IL1850150 / 2380
1995 1,2,4-Trichlorobenzene MR 4 SDWIS / IL1850150 / 2378
1995 Benzene MR 4 SDWIS / IL1850150 / 2990
1995 1,1,1-Trichloroethane MR 4 SDWIS / IL1850150 / 2981
1995 p-Dichlorobenzene MR 4 SDWIS / IL1850150 / 2969

How Keensburg Compares

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

Metric Keensburg Illinois avg Federal benchmark
Total violations 92 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 10.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 25.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 234 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 Keensburg water safe to drink? ▼
Keensburg (PWS ID: IL1850150) has 92 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 234 people using Groundwater sources.
How many people does Keensburg serve? ▼
Keensburg serves 234 people in Keensburg, Illinois. It is a Local-owned system using Groundwater water sources with 109 service connections.
What type of violations does Keensburg have? ▼
Keensburg has 92 total violations: 2 health-based violations (MCL exceedances or treatment failures), 82 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Keensburg water? ▼
No PFAS testing data is available for Keensburg under the EPA's UCMR5 monitoring program.
What water source does Keensburg use? ▼
Keensburg 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. 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.