C51/100
TRENTON — Water Quality Report 2026
Serving 2,742 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL0270500
Violations
13
Contaminant Test Results
EPA Violation History
5
Violations (last 5yr)
1
Unresolved
4
Health-Related
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2021 – December 31, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issued
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 TRENTON
Is TRENTON water safe to drink?
TRENTON water receives a grade of C (51/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 13 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has TRENTON detected?
1 contaminants were tested in TRENTON's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does TRENTON have any EPA violations?
Yes, TRENTON has 13 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MCL, TT. 9 are health-based violations.
How many people does TRENTON serve?
TRENTON serves approximately 2,742 people, Illinois. The system provides water to 1 community: Trenton.
What type of water does TRENTON provide?
TRENTON 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 IL0270500.
How does TRENTON compare to other utilities in Illinois?
TRENTON scores 51/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Illinois state page for a full comparison of water systems.