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Tap water quality report

Grosse Ile Township

EPA monitoring tested this supplier for 31 contaminants and detected 1. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

31
contaminants tested
1
detected
10,788
people served
4
health-based violations
Michigan rankingsLead in MichiganPFAS in Michigan
Water source
SWP
Ownership
Local government
Counties served
Wayne

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
15
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2001-07-01
TT Health-based Resolved 2001-07-01
TT Health-based Resolved 2001-07-01
TT Health-based Resolved 2001-07-01
MR Monitoring Resolved 2023-07-01 → 2023-09-30
MR Monitoring Resolved 2023-07-01 → 2023-09-30
MR Monitoring Resolved 2023-07-01 → 2023-09-30
MR Monitoring Resolved 2023-07-01 → 2023-09-30
MR Monitoring Resolved 2023-07-01 → 2023-09-30
MR Monitoring Resolved 2023-07-01 → 2023-09-30

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0192 mg/L 128%
above the EPA limit of 0.0150 mg/L
 22/22 LCR 2025
30 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
THIEL, DEREK
Phone
734-676-4422
Email
[email protected]

Frequently asked questions about Grosse Ile Township

Is Grosse Ile Township tap water safe to drink?

EPA monitoring detected 1 contaminant in Grosse Ile Township's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Grosse Ile Township's water?

EPA monitoring detected Lead. The full list with the level and data source for each is above.

How many people does Grosse Ile Township serve?

Grosse Ile Township reports serving 10,788 people in Michigan, per its EPA record.

Has Grosse Ile Township had any water quality violations?

The EPA has 15 violations on file for Grosse Ile Township, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.