Tap Water Quality Report for Ann Arbor, Michigan

Last Provided Update:N/A
Next Expected Update:April 19, 2025

Track your tap water quality with EPA-verified data on contaminants, violations, and health guidelines, updated quarterly from official water system monitoring results.

Ann Arbor, Michigan tap water has 89 total contaminants, with 0 being above EPA standards and 47 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (7)

7 water systems serve Ann Arbor, Michigan. Select one or more to filter the data below.

ANN ARBOR
Public Water System ID:MI0000220
Population Served:118,017
Primary Source:Surface water
Last Updated:Dec 19, 2024
Contact:
PITTSFIELD TOWNSHIP
Public Water System ID:MI0005360
Population Served:24,500
Primary Source:Surface water purchased
Last Updated:Dec 19, 2024
Contact:
SCIO TOWNSHIP
Public Water System ID:MI0005977
Population Served:8,500
Primary Source:Surface water purchased
Last Updated:Dec 19, 2024
Contact:
LOCH ALPINE SANITARY AUTHORITY
Public Water System ID:MI0003940
Population Served:1,506
Primary Source:Ground water
Last Updated:Dec 19, 2024
Contact:
ANN ARBOR TOWNSHIP
Public Water System ID:MI0000221
Population Served:1,338
Primary Source:Surface water purchased
Last Updated:Dec 19, 2024
Contact:
BARTON HILLS
Public Water System ID:MI0000430
Population Served:450
Primary Source:Ground water
Last Updated:Dec 19, 2024
Contact:

Stay Updated

Subscribe to receive updates about water quality in Ann Arbor, Michigan and learn about ways to ensure your drinking water is safe.

Water Quality Analysis

Comprehensive analysis of your water quality, showing both detected contaminants and violations history. Note that exceeding EPA contaminant levels in a single test doesn't always constitute a violation, as violations typically require sustained exceedances or failure to follow required treatment protocols.

Water Analysis

View detected contaminants and concentration levels for your water system(s).