A81/100
ALSIP — Water Quality Report 2026
Serving 19,063 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL0310030
Violations
8
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
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, 2024 – October 10, 2024Enforcement: 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 ALSIP
Is ALSIP water safe to drink?
ALSIP water receives a grade of A (81/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has ALSIP detected?
69 contaminants were tested in ALSIP's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ALSIP have any EPA violations?
Yes, ALSIP has 8 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MCL, MR. 2 are health-based violations.
How many people does ALSIP serve?
ALSIP serves approximately 19,063 people, Illinois. The system provides water to 1 community: Alsip.
What type of water does ALSIP provide?
ALSIP 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 IL0310030.
How does ALSIP compare to other utilities in Illinois?
ALSIP scores 81/100 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.