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Skokie, IL Tap Water Quality 2026

Water quality report for Skokie, IL — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Skokie's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Skokie PWSID: IL0312880 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 7.99 ppb, 53% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

B

Skokie earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 7.99 ppb — 53% of the federal action level
PFAS sampled, too few results to judge
6 violations since 2015, 0 health-based
No violations currently open
Skokie's lead level vs. all Illinois community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 7.99 ppb — 53% of the federal action level
✓ Lower lead than 16% of Illinois utilities
Population Served
67671
~17625 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
6 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
53% of EPA action level
7.99 ppb
Action level: 15 ppb
The 90th-percentile lead result is 7.99 ppb, 53% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2025 Unaddressed
Consumer Confidence Rule OTHER — — 2025 Unaddressed
TTHM MONITORING AND REPORTING — 0.080 mg/L 2025 Resolved
Public Notice OTHER — — 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

6 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Skokie
PWSID IL0312880
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 67,671
Service connections 17,625
Systems serving this area 7
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Skokie tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 7.99 ppb, 53% of the action level.
Does Skokie water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Skokie? ▼
Skokie (PWSID IL0312880), one of 7 systems serving this area. Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2024-04-03. Inspectors recorded 1 significant deficiency.

What Should Skokie Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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