A80/100
CENTRAL STICKNEY SD — Water Quality Report 2026
Serving 2,400 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL0315570
Violations
13
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.009 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Disinfection byproduct treatment technique failure
When: August 22, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
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: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2025 – July 11, 2025Enforcement: Resolving — corrective action underway
TIER 2Unresolved
Treatment technique violation
When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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 CENTRAL STICKNEY SD
Is CENTRAL STICKNEY SD water safe to drink?
CENTRAL STICKNEY SD water receives a grade of A (80/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CENTRAL STICKNEY SD detected?
1 contaminants were tested in CENTRAL STICKNEY SD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CENTRAL STICKNEY SD have any EPA violations?
Yes, CENTRAL STICKNEY SD has 13 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, RPT, TT. 1 are health-based violations.
How many people does CENTRAL STICKNEY SD serve?
CENTRAL STICKNEY SD serves approximately 2,400 people, Illinois.
What type of water does CENTRAL STICKNEY SD provide?
CENTRAL STICKNEY SD 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 IL0315570.
How does CENTRAL STICKNEY SD compare to other utilities in Illinois?
CENTRAL STICKNEY SD scores 80/100 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.