TapSafetyReport
A83/100

SUMMIT — Water Quality Report 2026

Serving 10,875 people · Illinois

Water Source
Purchased Surface Water
County
—
System ID
IL0310060
Violations
13

Contaminant Test Results

EPA Violation History

5

Violations (last 5yr)

3

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

Surface water treatment technique failure

When: July 1, 2025Enforcement: 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: March 1, 2022 – May 31, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
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: March 1, 2022 – May 31, 2022Rule: Stage 2 DBPREnforcement: 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 SUMMIT

Is SUMMIT water safe to drink?

SUMMIT water receives a grade of A (83/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.

What contaminants has SUMMIT detected?

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

Does SUMMIT have any EPA violations?

Yes, SUMMIT has 13 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, Other, MR. 1 are health-based violations.

How many people does SUMMIT serve?

SUMMIT serves approximately 10,875 people, Illinois. The system provides water to 1 community: Summit.

What type of water does SUMMIT provide?

SUMMIT sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is IL0310060.

How does SUMMIT compare to other utilities in Illinois?

SUMMIT scores 83/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Illinois state page for a full comparison of water systems.

Cities Served

Summit