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

COUNTY WATER-SYSTEM LEDGER

St. Lawrence, New York

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

Systems6active CWS · pop. 2,500+
Population served49,658reported total; may overlap
Current violation flag16.7%1 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving St. Lawrence

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

Water systemPopulation servedPrimary sourceCurrent export status
Massena VillageNY440439016,729Surface waterCurrent monitoring/reporting flag
Ogdensburg CityNY440439410,064Surface waterNo current violation flagged
Potsdam VillageNY44043978,312Surface waterNo current violation flagged
Canton VillageNY44043817,055Ground waterNo current violation flagged
GouverneurNY44043854,263Surface waterNo current violation flagged
East Louisville Water DistrictNY44301333,235Surface waterNo current violation flagged

02 / SOURCE MIX

Surface water5 systems · 42,603 served
Ground water1 systems · 7,055 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.