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Community Water System · PWS IL1910350

Mount Erie

Mount Erie, Illinois 62446 - drinking water served from surface water sources to 128 people, tracked in EPA SDWIS and UCMR5.

128
People served
177
EPA violations
24
Health-based
Untested
UCMR5 result

The verdict

EPA records 177 drinking-water violations at Mount Erie, 14% of them health-based - above the Illinois per-system average.

177
Total EPA violations on record
14%
Health-based (MCL / treatment failure)
128
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mount Erie

Mount Erie is a local-owned community water system that delivers drinking water to 128 residents in Mount Erie, Illinois (Wayne County) through 76 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 177 total violations for this system , of which 24 (14%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 120 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 Coliform (TCR), recorded in 24 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%).

Mount Erie's 177 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
128
Total Violations
177
Health-Based Violations
24
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
76
County
Wayne
School/Daycare
No
MCL Violations
24
Monitoring Violations
120
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 24 1997
Coliform (TCR) MCL 18 2014
TTHM MCL 6 2024
BHC-GAMMA MR 3 1998
Methoxychlor MR 3 1998
Toxaphene MR 3 1998
Carbofuran MR 3 1998
Atrazine MR 3 1998
Heptachlor MR 3 1998
Heptachlor epoxide MR 3 1998
Pentachlorophenol MR 3 1998
1,2-DIBROMO-3-CHLOROPROPANE MR 3 1998
ETHYLENE DIBROMIDE MR 3 1998
Endrin MR 3 1998
Dalapon MR 3 1998
Diquat MR 3 1998
Endothall MR 3 1998
OXAMYL MR 3 1998
Simazine MR 3 1998
Di(2-ethylhexyl) phthalate MR 3 1998
Picloram MR 3 1998
Aldicarb MR 3 1998
Benzo(a)pyrene MR 3 1998
Total Polychlorinated Biphenyls (PCB) MR 3 1998
Aldicarb sulfone MR 3 1998
2,4,5-TP MR 3 1998
LASSO MR 3 1998
2,4-D MR 3 1998
Aldicarb sulfoxide MR 3 1998
Chlordane MR 3 1998

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 Mount Erie.

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 IL1910350 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 Mount Erie 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 TTHM MCL 6 SDWIS / IL1910350 / 2950
2014 Coliform (TCR) MCL 18 SDWIS / IL1910350 / 3100
1998 BHC-GAMMA MR 3 SDWIS / IL1910350 / 2010
1998 Methoxychlor MR 3 SDWIS / IL1910350 / 2015
1998 Toxaphene MR 3 SDWIS / IL1910350 / 2020
1998 Carbofuran MR 3 SDWIS / IL1910350 / 2046
1998 Atrazine MR 3 SDWIS / IL1910350 / 2050
1998 Heptachlor MR 3 SDWIS / IL1910350 / 2065
1998 Heptachlor epoxide MR 3 SDWIS / IL1910350 / 2067
1998 Pentachlorophenol MR 3 SDWIS / IL1910350 / 2326
1998 1,2-DIBROMO-3-CHLOROPROPANE MR 3 SDWIS / IL1910350 / 2931
1998 ETHYLENE DIBROMIDE MR 3 SDWIS / IL1910350 / 2946
1998 Endrin MR 3 SDWIS / IL1910350 / 2005
1998 Dalapon MR 3 SDWIS / IL1910350 / 2031
1998 Diquat MR 3 SDWIS / IL1910350 / 2032

How Mount Erie Compares

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

Metric Mount Erie Illinois avg Federal benchmark
Total violations 177 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 24 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 128 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 Mount Erie water safe to drink? ▼
Mount Erie (PWS ID: IL1910350) has 177 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 128 people using Surface Water sources.
How many people does Mount Erie serve? ▼
Mount Erie serves 128 people in Mount Erie, Illinois. It is a Local-owned system using Surface Water water sources with 76 service connections.
What type of violations does Mount Erie have? ▼
Mount Erie has 177 total violations: 24 health-based violations (MCL exceedances or treatment failures), 120 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mount Erie water? ▼
No PFAS testing data is available for Mount Erie under the EPA's UCMR5 monitoring program.
What water source does Mount Erie use? ▼
Mount Erie 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.