ANN ARBOR

MI · PWS ID MI0000220 · Community water system

31
contaminants tested
4
detected
123,851
people served
Water source
Surface water
Ownership
Local government
Counties served
Washtenaw

PFAS detected

“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
ContaminantMaxDetection ratePeriod
PFPeA 0.0047 ug/L 3/4 2023
PFBA 0.0061 ug/L 1/4 2023
PFHxA 0.0035 ug/L 1/4 2023

Other contaminants detected

ContaminantMaxDetection rateSourcePeriod
LEAD SUMMARY 0.0080 mg/L 14/14 LCR 2023
27 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DANEtFOSAANFDHANMeFOSAAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAlithium

Areas served

ANN ARBOR

Utility contact

Contact
MACIEJEWSKI, MOLLY
Phone
734-794-6000
Email
mmaciejewski@a2gov.org