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Genoa, IL Tap Water Quality 2026

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

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

Main Utility: Genoa PWSID: IL0370150 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 8.70 ppb, 58% of the action level and no violations are open. No PFAS was detected.

B

Genoa earns a B for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 8.70 ppb — 58% of the federal action level
PFAS tested, none detected
1 violations since 2015, 0 health-based
No violations currently open
Genoa's lead level vs. all Illinois community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 8.70 ppb — 58% of the federal action level
✓ Lower lead than 13% of Illinois utilities
Population Served
5285
~2060 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
1 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
58% of EPA action level
8.70 ppb
Action level: 15 ppb
The 90th-percentile lead result is 8.70 ppb, 58% 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
Nitrite MONITORING AND REPORTING — 1 mg/L 2025 Archived
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

1 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 Genoa
PWSID IL0370150
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 5,285
Service connections 2,060
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Genoa tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 8.70 ppb, 58% of the action level.
Does Genoa water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Genoa? ▼
Genoa (PWSID IL0370150). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-05-23. Inspectors recorded 2 significant deficiencies.

What Should Genoa 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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