States ›Michigan ›Wayne County ›Grosse Ile

Grosse Ile, MI Tap Water Quality 2026

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

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

Main Utility: Grosse Ile Township PWSID: MI0002870 Updated: 2026 Q2
🚨

Lead above the federal action level

Lead is 19.20 ppb, 128% of the action level and no violations are open. No PFAS was detected.

C

Grosse Ile earns a C for water quality

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

Lead: 19.20 ppb — 128% of the federal action level
PFAS tested, none detected
3 violations since 2015, 0 health-based
No violations currently open
Grosse Ile's lead level vs. all Michigan community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 19.20 ppb — 100% of the federal action level
✓ Lower lead than 3% of Michigan utilities
Population Served
7034
~4437 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
3 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
100% of EPA action level
19.20 ppb
Action level: 15 ppb
The 90th-percentile lead result is 19.20 ppb, 128% 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
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
Consumer Confidence Rule OTHER — — 2020 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

3 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 Grosse Ile Township
PWSID MI0002870
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 7,034
Service connections 4,437
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Grosse Ile tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 19.20 ppb, 128% of the action level.
Does Grosse Ile water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Grosse Ile? ▼
Grosse Ile Township (PWSID MI0002870), one of 3 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 2026-02-26. No significant deficiencies were recorded.

What Should Grosse Ile 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.

Nearby Cities in Michigan

Detroit, Mi Tap Water Quality 2026 Wayne Dearborn, Mi Tap Water Quality 2026 Wayne Canton charter, Mi Tap Water Quality 2026 Wayne Livonia, Mi Tap Water Quality 2026 Wayne Westland, Mi Tap Water Quality 2026 Wayne Taylor, Mi Tap Water Quality 2026 Wayne