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Community Water System · PWS IL0770300

Elkville

Elkville, Illinois 62932 - drinking water served from surface water sources to 1,068 people, tracked in EPA SDWIS and UCMR5.

1,068
People served
33
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 33 drinking-water violations at Elkville, 30% of them health-based - below the Illinois per-system average.

33
Total EPA violations on record
30%
Health-based (MCL / treatment failure)
1,068
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Elkville

Elkville is a local-owned community water system that delivers drinking water to 1,068 residents in Elkville, Illinois (Jackson County) through 475 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 33 total violations for this system , of which 10 (30%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 16 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 Coliform (TCR), recorded in 5 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, 199 of 487 UCMR5-tested systems have reported PFAS detections (40.9%).

Elkville's 33 violations sit below 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
1,068
Total Violations
33
Health-Based Violations
10
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
475
County
Jackson
School/Daycare
No
MCL Violations
9
Monitoring Violations
16
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 5 1996
Chlorite MCL 5 2010
Coliform (TCR) MCL 4 1996
Chloramine MR 4 2014
Total Haloacetic Acids (HAA5) MR 4 2023
Lead and Copper Rule MR 3 2025
LEAD AND COPPER RULE REVISIONS RPT 3 2025
Consumer Confidence Rule Other 2 2005
Public Notice Other 2 2015
Lead and Copper Rule TT 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 Elkville.

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 IL0770300 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 Elkville 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 Lead and Copper Rule MR 3 SDWIS / IL0770300 / 5000
2025 LEAD AND COPPER RULE REVISIONS RPT 3 SDWIS / IL0770300 / 5200
2025 Lead and Copper Rule TT 1 SDWIS / IL0770300 / 5000
2023 Total Haloacetic Acids (HAA5) MR 4 SDWIS / IL0770300 / 2456
2015 Public Notice Other 2 SDWIS / IL0770300 / 7500
2014 Chloramine MR 4 SDWIS / IL0770300 / 1006
2010 Chlorite MCL 5 SDWIS / IL0770300 / 1009
2005 Consumer Confidence Rule Other 2 SDWIS / IL0770300 / 7000
1996 Coliform (TCR) MR 5 SDWIS / IL0770300 / 3100
1996 Coliform (TCR) MCL 4 SDWIS / IL0770300 / 3100

How Elkville Compares

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

Metric Elkville Illinois avg Federal benchmark
Total violations 33 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 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 1,068 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 Elkville water safe to drink? ▼
Elkville (PWS ID: IL0770300) has 33 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,068 people using Surface Water sources.
How many people does Elkville serve? ▼
Elkville serves 1,068 people in Elkville, Illinois. It is a Local-owned system using Surface Water water sources with 475 service connections.
What type of violations does Elkville have? ▼
Elkville has 33 total violations: 10 health-based violations (MCL exceedances or treatment failures), 16 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Elkville water? ▼
No PFAS testing data is available for Elkville under the EPA's UCMR5 monitoring program.
What water source does Elkville use? ▼
Elkville 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.