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Community Water System · PWS IL0610150

Greenfield

Greenfield, Illinois 62044 - drinking water served from surface water sources to 1,480 people, tracked in EPA SDWIS and UCMR5.

1,480
People served
258
EPA violations
164
Health-based
Untested
UCMR5 result

The verdict

EPA records 258 drinking-water violations at Greenfield, 64% of them health-based - above the Illinois per-system average.

258
Total EPA violations on record
64%
Health-based (MCL / treatment failure)
1,480
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Greenfield

Greenfield is a local-owned community water system that delivers drinking water to 1,480 residents in Greenfield, Illinois (Greene County) through 574 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 258 total violations for this system , of which 164 (64%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 41 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 89 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%).

Greenfield's 258 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
1,480
Total Violations
258
Health-Based Violations
164
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
574
County
Greene
School/Daycare
No
MCL Violations
100
Monitoring Violations
41
Treatment Tech Violations
64

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MCL 89 2021
CARBON, TOTAL TT 52 2018
Interim Enhanced Surface Water Treatment Rule TT 12 2010
Public Notice Other 12 2022
Atrazine MCL 11 1997
Chloramine MR 8 2021
Revised Total Coliform Rule MON 8 2021
Atrazine MR 8 2022
Consumer Confidence Rule Other 6 2022
TTHM MR 4 2020
2,4-D MR 4 2020
Total Haloacetic Acids (HAA5) MR 4 2020
Chlorine MR 2 2012
Lead and Copper Rule MR 2 2021
Gross Alpha, Excl. Radon and U MR 1 1977

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 Greenfield.

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 IL0610150 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 Greenfield 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
2022 Public Notice Other 12 SDWIS / IL0610150 / 7500
2022 Atrazine MR 8 SDWIS / IL0610150 / 2050
2022 Consumer Confidence Rule Other 6 SDWIS / IL0610150 / 7000
2021 Total Haloacetic Acids (HAA5) MCL 89 SDWIS / IL0610150 / 2456
2021 Chloramine MR 8 SDWIS / IL0610150 / 1006
2021 Revised Total Coliform Rule MON 8 SDWIS / IL0610150 / 8000
2021 Lead and Copper Rule MR 2 SDWIS / IL0610150 / 5000
2020 TTHM MR 4 SDWIS / IL0610150 / 2950
2020 2,4-D MR 4 SDWIS / IL0610150 / 2105
2020 Total Haloacetic Acids (HAA5) MR 4 SDWIS / IL0610150 / 2456
2018 CARBON, TOTAL TT 52 SDWIS / IL0610150 / 2920
2012 Chlorine MR 2 SDWIS / IL0610150 / 0999
2010 Interim Enhanced Surface Water Treatment Rule TT 12 SDWIS / IL0610150 / 0300
1997 Atrazine MCL 11 SDWIS / IL0610150 / 2050
1977 Gross Alpha, Excl. Radon and U MR 1 SDWIS / IL0610150 / 4000

How Greenfield Compares

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

Metric Greenfield Illinois avg Federal benchmark
Total violations 258 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 164 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 1,480 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 Greenfield water safe to drink? ▼
Greenfield (PWS ID: IL0610150) has 258 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,480 people using Surface Water sources.
How many people does Greenfield serve? ▼
Greenfield serves 1,480 people in Greenfield, Illinois. It is a Local-owned system using Surface Water water sources with 574 service connections.
What type of violations does Greenfield have? ▼
Greenfield has 258 total violations: 164 health-based violations (MCL exceedances or treatment failures), 41 monitoring/reporting violations, and 64 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Greenfield water? ▼
No PFAS testing data is available for Greenfield under the EPA's UCMR5 monitoring program.
What water source does Greenfield use? ▼
Greenfield 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.