COUNTY WATER-SYSTEM LEDGER
St. Lawrence, New York
EPA’s September 2026 export lists 6 active community water systems serving St. Lawrence, New York, with 1 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving St. Lawrence, New York
EPA associates 6 covered systems with St. Lawrence, New York; their reported population-served values total 49,658 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Massena VillageNY4404390 | 16,729 | Surface water | Current monitoring/reporting flag |
| Ogdensburg CityNY4404394 | 10,064 | Surface water | No current violation flagged |
| Potsdam VillageNY4404397 | 8,312 | Surface water | No current violation flagged |
| Canton VillageNY4404381 | 7,055 | Ground water | No current violation flagged |
| GouverneurNY4404385 | 4,263 | Surface water | No current violation flagged |
| East Louisville Water DistrictNY4430133 | 3,235 | Surface water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for St. Lawrence, New York
EPA classifies 6 systems serving St. Lawrence, New York across 2 primary-source categories; Surface water is the largest category with 5 systems.
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.