EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Washtenaw, Michigan

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems10active CWS · pop. 2,500+
Population served248,071reported total; may overlap
Current violation flag0.0%0 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Washtenaw

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
Ann ArborMI0000220123,851Surface waterNo current violation flagged
Ypsilanti Community Utility AuthorityMI000726053,988Surface water purchasedNo current violation flagged
Pittsfield TownshipMI000536024,500Surface water purchasedNo current violation flagged
SalineMI00059009,158Ground waterNo current violation flagged
Scio TownshipMI00059778,500Surface water purchasedNo current violation flagged
MilanMI00043807,363Ground waterNo current violation flagged
Superior TownshipMI00064906,830Surface water purchasedNo current violation flagged
ChelseaMI00013705,474Ground waterNo current violation flagged
DexterMI00018104,500Ground waterNo current violation flagged
Augusta TownshipMI00003213,907Surface water purchasedNo current violation flagged

02 / SOURCE MIX

Surface water1 systems · 123,851 served
Surface water purchased5 systems · 97,725 served
Ground water4 systems · 26,495 served
How to read the population total

It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.