Tap WaterIndex

← Michigan

Tap water quality report

Ann Arbor Township

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

1
contaminants tested
1
detected
1,338
people served
0
health-based violations
Michigan rankingsLead in MichiganPFAS in Michigan
Water source
SWP
Ownership
Local government
Counties served
Washtenaw

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.

0
health-based violations
10
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2016-12-01 → 2017-02-28
MR Monitoring Resolved 2016-12-01 → 2017-02-28
MR Monitoring Resolved 2016-12-01 → 2017-02-28
MR Monitoring Resolved 2016-12-01 → 2017-02-28
MR Monitoring Resolved 2016-12-01 → 2017-02-28
MR Monitoring Resolved 2016-12-01 → 2017-02-28
Other Monitoring Resolved 2001-07-01
MR Monitoring Resolved 1992-11-01 → 1992-11-30
MR Monitoring Resolved 1992-11-01 → 1992-11-30
MR Monitoring Resolved 1992-11-01 → 1992-11-30

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0011 mg/L 7.3%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2023

Utility contact

Contact
O'CONNELL, DIANE
Phone
734-663-3418
Email
supervisor@aatwp.org

Frequently asked questions about Ann Arbor Township

Is Ann Arbor Township tap water safe to drink?

EPA monitoring detected 1 contaminant in Ann Arbor 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 Ann Arbor Township's water?

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

How many people does Ann Arbor Township serve?

Ann Arbor Township reports serving 1,338 people in Michigan, per its EPA record.

Has Ann Arbor Township had any water quality violations?

The EPA has 10 violations on file for Ann Arbor Township, of which 0 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.