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

COUNTY WATER-SYSTEM LEDGER

Ozaukee, Wisconsin

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

Systems5active CWS · pop. 2,500+
Population served53,042reported total; may overlap
Current violation flag0.0%0 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Ozaukee

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

Water systemPopulation servedPrimary sourceCurrent export status
Port Washington WaterworksWI246005412,853Surface waterNo current violation flagged
Cedarburg L & W CommissionWI246010812,500Ground waterNo current violation flagged
Grafton WaterworksWI246011112,269Ground waterNo current violation flagged
Mequon Water UtilityWI246011211,152Surface water purchasedNo current violation flagged
Saukville WaterworksWI24601344,268Ground waterNo current violation flagged

02 / SOURCE MIX

Ground water3 systems · 29,037 served
Surface water1 systems · 12,853 served
Surface water purchased1 systems · 11,152 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.