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Community Water System · PWS IL1750100

Lafayette

Lafayette, Illinois 61449 - drinking water served from groundwater sources to 250 people, tracked in EPA SDWIS and UCMR5.

250
People served
817
EPA violations
19
Health-based
Untested
UCMR5 result

The verdict

EPA records 817 drinking-water violations at Lafayette, 2% of them health-based - above the Illinois per-system average.

817
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lafayette

Lafayette is a local-owned community water system that delivers drinking water to 250 residents in Lafayette, Illinois (Stark County) through 77 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 817 total violations for this system , of which 19 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 741 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 LASSO, recorded in 28 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%).

Lafayette's 817 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
250
Total Violations
817
Health-Based Violations
19
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
77
County
Stark
School/Daycare
No
MCL Violations
17
Monitoring Violations
741
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
LASSO MR 28 2004
1,2,4-Trichlorobenzene MR 19 2004
1,1,2-Trichloroethane MR 19 2004
cis-1,2-Dichloroethylene MR 19 2004
Xylenes, Total MR 19 2004
trans-1,2-Dichloroethylene MR 19 2004
1,1,1-Trichloroethane MR 19 2004
Carbon tetrachloride MR 19 2004
1,2-Dichloropropane MR 19 2004
Trichloroethylene MR 19 2004
CHLOROBENZENE MR 19 2004
Toluene MR 19 2004
Styrene MR 19 2004
DICHLOROMETHANE MR 19 2004
p-Dichlorobenzene MR 19 2004
1,1-Dichloroethylene MR 19 2004
1,2-Dichloroethane MR 19 2004
Tetrachloroethylene MR 19 2004
Benzene MR 19 2004
Ethylbenzene MR 19 2004
o-Dichlorobenzene MR 19 2004
Public Notice Other 19 2025
Fluoride MCL 13 1985
Nitrate MR 12 2007
Methoxychlor MR 10 1999
Carbofuran MR 10 1999
Atrazine MR 10 1999
Heptachlor epoxide MR 10 1999
2,4-D MR 10 1999
2,4,5-TP MR 10 1999

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 Lafayette.

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 IL1750100 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 Lafayette 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
2025 Public Notice Other 19 SDWIS / IL1750100 / 7500
2025 Consumer Confidence Rule Other 10 SDWIS / IL1750100 / 7000
2025 LEAD AND COPPER RULE REVISIONS RPT 4 SDWIS / IL1750100 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / IL1750100 / 5200
2023 Total Haloacetic Acids (HAA5) MR 1 SDWIS / IL1750100 / 2456
2022 Lead and Copper Rule MR 6 SDWIS / IL1750100 / 5000
2012 Coliform (TCR) MR 8 SDWIS / IL1750100 / 3100
2012 Chlorine MR 3 SDWIS / IL1750100 / 0999
2007 Nitrate MR 12 SDWIS / IL1750100 / 1040
2007 Combined Radium (-226 and -228) MR 2 SDWIS / IL1750100 / 4010
2004 LASSO MR 28 SDWIS / IL1750100 / 2051
2004 1,2,4-Trichlorobenzene MR 19 SDWIS / IL1750100 / 2378
2004 1,1,2-Trichloroethane MR 19 SDWIS / IL1750100 / 2985
2004 cis-1,2-Dichloroethylene MR 19 SDWIS / IL1750100 / 2380
2004 Xylenes, Total MR 19 SDWIS / IL1750100 / 2955

How Lafayette Compares

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

Metric Lafayette Illinois avg Federal benchmark
Total violations 817 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 19 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 250 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 Lafayette water safe to drink? ▼
Lafayette (PWS ID: IL1750100) has 817 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does Lafayette serve? ▼
Lafayette serves 250 people in Lafayette, Illinois. It is a Local-owned system using Groundwater water sources with 77 service connections.
What type of violations does Lafayette have? ▼
Lafayette has 817 total violations: 19 health-based violations (MCL exceedances or treatment failures), 741 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lafayette water? ▼
No PFAS testing data is available for Lafayette under the EPA's UCMR5 monitoring program.
What water source does Lafayette use? ▼
Lafayette 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.