D32/100
TRITOWNSHIP WATER DISTRICT — Water Quality Report 2026
Serving 3,470 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL1190080
Violations
17
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.70 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2025 – August 12, 2025Enforcement: 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 TRITOWNSHIP WATER DISTRICT
Is TRITOWNSHIP WATER DISTRICT water safe to drink?
TRITOWNSHIP WATER DISTRICT water receives a grade of D (32/100), which is considered poor. 1 contaminant(s) exceed EPA legal limits and 17 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has TRITOWNSHIP WATER DISTRICT detected?
35 contaminants were tested in TRITOWNSHIP WATER DISTRICT's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does TRITOWNSHIP WATER DISTRICT have any EPA violations?
Yes, TRITOWNSHIP WATER DISTRICT has 17 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MON, MR. 10 are health-based violations.
How many people does TRITOWNSHIP WATER DISTRICT serve?
TRITOWNSHIP WATER DISTRICT serves approximately 3,470 people, Illinois. The system provides water to 1 community: Highland.
What type of water does TRITOWNSHIP WATER DISTRICT provide?
TRITOWNSHIP WATER DISTRICT 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 IL1190080.
How does TRITOWNSHIP WATER DISTRICT compare to other utilities in Illinois?
TRITOWNSHIP WATER DISTRICT scores 32/100 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.