Community Water System · PWS IL1750150

Toulon

Toulon, Illinois 61483 - drinking water served from groundwater sources to 1,193 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

1,193
People served: 428
EPA violations: 74
Health-based: Untested
UCMR5 result

The verdict

EPA records 428 drinking-water violations at Toulon, 17% of them health-based - above the Illinois per-system average.

428
Total EPA violations on record: 17%
Health-based (MCL / treatment failure): 1,193
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Toulon

Toulon is a local-owned community water system that delivers drinking water to 1,193 residents in Toulon, Illinois (Stark County) through 540 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 428 total violations for this system , of which 74 (17%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 318 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Gross Alpha, Excl. Radon and U, recorded in 31 violations (MCL, health-based). 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%).

Toulon's 428 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

1,193

Total Violations

428

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Local
Connections: 540
County: Stark
School/Daycare: No
MCL Violations: 67
Monitoring Violations: 318
Treatment Tech Violations: 7

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Gross Alpha, Excl. Radon and U	MCL	31	2001
Combined Radium (-226 and -228)	MCL	21	1989
Lead and Copper Rule	MR	17	2013
Coliform (TCR)	MR	15	2012
Fluoride	MCL	13	1985
p-Dichlorobenzene	MR	12	2003
1,2,4-Trichlorobenzene	MR	9	2003
cis-1,2-Dichloroethylene	MR	9	2003
1,1-Dichloroethylene	MR	9	2003
1,1,1-Trichloroethane	MR	9	2003
Carbon tetrachloride	MR	9	2003
1,2-Dichloropropane	MR	9	2003
CHLOROBENZENE	MR	9	2003
Benzene	MR	9	2003
Xylenes, Total	MR	9	2003
o-Dichlorobenzene	MR	9	2003
1,2-Dichloroethane	MR	9	2003
Trichloroethylene	MR	9	2003
1,1,2-Trichloroethane	MR	9	2003
Tetrachloroethylene	MR	9	2003
Ethylbenzene	MR	9	2003
Styrene	MR	9	2003
Toluene	MR	9	2003
DICHLOROMETHANE	MR	9	2003
trans-1,2-Dichloroethylene	MR	9	2003
Consumer Confidence Rule	Other	6	2009
Lead and Copper Rule	TT	4	2002
Nitrate	MR	4	2016
BHC-GAMMA	MR	3	1995
Methoxychlor	MR	3	1995

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 Toulon.

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 IL1750150 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 Toulon 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
2024	LEAD AND COPPER RULE REVISIONS	TT	3	SDWIS / IL1750150 / 5200
2016	Nitrate	MR	4	SDWIS / IL1750150 / 1040
2013	Lead and Copper Rule	MR	17	SDWIS / IL1750150 / 5000
2013	Public Notice	Other	2	SDWIS / IL1750150 / 7500
2012	Coliform (TCR)	MR	15	SDWIS / IL1750150 / 3100
2012	Chlorine	MR	3	SDWIS / IL1750150 / 0999
2009	Consumer Confidence Rule	Other	6	SDWIS / IL1750150 / 7000
2003	p-Dichlorobenzene	MR	12	SDWIS / IL1750150 / 2969
2003	1,2,4-Trichlorobenzene	MR	9	SDWIS / IL1750150 / 2378
2003	cis-1,2-Dichloroethylene	MR	9	SDWIS / IL1750150 / 2380
2003	1,1-Dichloroethylene	MR	9	SDWIS / IL1750150 / 2977
2003	1,1,1-Trichloroethane	MR	9	SDWIS / IL1750150 / 2981
2003	Carbon tetrachloride	MR	9	SDWIS / IL1750150 / 2982
2003	1,2-Dichloropropane	MR	9	SDWIS / IL1750150 / 2983
2003	CHLOROBENZENE	MR	9	SDWIS / IL1750150 / 2989

How Toulon Compares

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

Metric	Toulon	Illinois avg	Federal benchmark
Total violations	428	69.4	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	74	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	1,193	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 Toulon water safe to drink? ▼

Toulon (PWS ID: IL1750150) has 428 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,193 people using Groundwater sources.

How many people does Toulon serve? ▼

Toulon serves 1,193 people in Toulon, Illinois. It is a Local-owned system using Groundwater water sources with 540 service connections.

What type of violations does Toulon have? ▼

Toulon has 428 total violations: 74 health-based violations (MCL exceedances or treatment failures), 318 monitoring/reporting violations, and 7 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Toulon water? ▼

No PFAS testing data is available for Toulon under the EPA's UCMR5 monitoring program.

What water source does Toulon use? ▼

Toulon 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.