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

COUNTY WATER-SYSTEM LEDGER

Knox, Ohio

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

Systems3active CWS · pop. 2,500+
Population served27,348reported total; may overlap
Current violation flag66.7%2 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Knox

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

Water systemPopulation servedPrimary sourceCurrent export status
Mount Vernon City PWSOH420081216,990Ground waterOther current violation flag
Knox County Water And Wastewater PWSOH42020127,710Ground waterOther current violation flag
Fredericktown VillageOH42002122,648Ground waterNo current violation flagged

02 / SOURCE MIX

Ground water3 systems · 27,348 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.