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F0/100

GREENFIELD — Water Quality Report 2026

Serving 1,480 people · Illinois

Water Source
Surface Water
County
—
System ID
IL0610150
Violations
49

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
< 0.001 mg/L0.015 mg/LAbove Goal

EPA Violation History

10

Violations (last 5yr)

0

Unresolved

1

Health-Related

TIER 3Resolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2022 – December 31, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2022 – August 24, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 16, 2022 – August 24, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 16, 2022 – August 24, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: January 13, 2022 – January 25, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: January 13, 2022 – January 25, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: October 22, 2021 – November 1, 2021Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 29, 2021 – February 28, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: May 1, 2021 – May 31, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About GREENFIELD

Is GREENFIELD water safe to drink?

GREENFIELD water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 49 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has GREENFIELD detected?

1 contaminants were tested in GREENFIELD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does GREENFIELD have any EPA violations?

Yes, GREENFIELD has 49 EPA violation(s) on record, with the most recent in 2022. Violation types include MR, Other, MCL. 28 are health-based violations.

How many people does GREENFIELD serve?

GREENFIELD serves approximately 1,480 people, Illinois. The system provides water to 1 community: Greenfield.

What type of water does GREENFIELD provide?

GREENFIELD sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is IL0610150.

How does GREENFIELD compare to other utilities in Illinois?

GREENFIELD scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Illinois state page for a full comparison of water systems.

Cities Served

Greenfield