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Community Water System · PWS IL1170300

Eagarville

Eagarville, Illinois 62023 - drinking water served from surface water sources to 127 people, tracked in EPA SDWIS and UCMR5.

127
People served
116
EPA violations
36
Health-based
Untested
UCMR5 result

The verdict

EPA records 116 drinking-water violations at Eagarville, 31% of them health-based - above the Illinois per-system average.

116
Total EPA violations on record
31%
Health-based (MCL / treatment failure)
127
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Eagarville

Eagarville is a local-owned community water system that delivers drinking water to 127 residents in Eagarville, Illinois (Macoupin County) through 54 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 116 total violations for this system , of which 36 (31%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 61 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 Revised Total Coliform Rule, recorded in 26 violations (MON). 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%).

Eagarville's 116 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
127
Total Violations
116
Health-Based Violations
36
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
54
County
Macoupin
School/Daycare
No
MCL Violations
32
Monitoring Violations
61
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 26 2025
Chlorine MR 23 2025
Atrazine MCL 22 1997
Total Haloacetic Acids (HAA5) MCL 6 2004
Coliform (TCR) MCL 4 1998
TTHM MR 4 2024
Total Haloacetic Acids (HAA5) MR 4 2024
LEAD AND COPPER RULE REVISIONS RPT 4 2025
Coliform (TCR) MR 4 2007
Consumer Confidence Rule Other 2 2023
LEAD AND COPPER RULE REVISIONS TT 2 2024
Lead and Copper Rule TT 2 2005
Public Notice Other 1 2025

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 Eagarville.

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 IL1170300 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 Eagarville 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 Revised Total Coliform Rule MON 26 SDWIS / IL1170300 / 8000
2025 Chlorine MR 23 SDWIS / IL1170300 / 0999
2025 LEAD AND COPPER RULE REVISIONS RPT 4 SDWIS / IL1170300 / 5200
2025 Public Notice Other 1 SDWIS / IL1170300 / 7500
2024 TTHM MR 4 SDWIS / IL1170300 / 2950
2024 Total Haloacetic Acids (HAA5) MR 4 SDWIS / IL1170300 / 2456
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / IL1170300 / 5200
2023 Consumer Confidence Rule Other 2 SDWIS / IL1170300 / 7000
2007 Coliform (TCR) MR 4 SDWIS / IL1170300 / 3100
2005 Lead and Copper Rule TT 2 SDWIS / IL1170300 / 5000
2004 Total Haloacetic Acids (HAA5) MCL 6 SDWIS / IL1170300 / 2456
1998 Coliform (TCR) MCL 4 SDWIS / IL1170300 / 3100
1997 Atrazine MCL 22 SDWIS / IL1170300 / 2050

How Eagarville Compares

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

Metric Eagarville Illinois avg Federal benchmark
Total violations 116 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 36 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 127 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 Eagarville water safe to drink? ▼
Eagarville (PWS ID: IL1170300) has 116 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 127 people using Surface Water sources.
How many people does Eagarville serve? ▼
Eagarville serves 127 people in Eagarville, Illinois. It is a Local-owned system using Surface Water water sources with 54 service connections.
What type of violations does Eagarville have? ▼
Eagarville has 116 total violations: 36 health-based violations (MCL exceedances or treatment failures), 61 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Eagarville water? ▼
No PFAS testing data is available for Eagarville under the EPA's UCMR5 monitoring program.
What water source does Eagarville use? ▼
Eagarville 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.