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D26/100

HILLCREST — Water Quality Report 2026

Serving 1,224 people · Illinois

Water Source
Groundwater
County
—
System ID
IL1410250
Violations
58

Contaminant Test Results

EPA Violation History

5

Violations (last 5yr)

2

Unresolved

0

Health-Related

TIER 3Unresolved

Reporting Violation

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

When: July 2, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Failed to issue ongoing public notification

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

When: July 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

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

When: July 1, 2024 – August 19, 2024Rule: Stage 1 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: July 1, 2024 – July 31, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: February 9, 2024 – April 18, 2024Rule: Ground Water 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 HILLCREST

Is HILLCREST water safe to drink?

HILLCREST water receives a grade of D (26/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 58 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has HILLCREST detected?

1 contaminants were tested in HILLCREST's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does HILLCREST have any EPA violations?

Yes, HILLCREST has 58 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MR, MON. 4 are health-based violations.

How many people does HILLCREST serve?

HILLCREST serves approximately 1,224 people, Illinois. The system provides water to 1 community: Hillcrest.

What type of water does HILLCREST provide?

HILLCREST sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL1410250.

How does HILLCREST compare to other utilities in Illinois?

HILLCREST scores 26/100 with a grade of D (poor). 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

Hillcrest