CITY WATER-SYSTEM LEDGER
Smithtown (T), New York
EPA’s September 2026 export lists 3 active community water systems serving Smithtown (T), New York, with 0 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 Smithtown (T), New York
EPA associates 3 covered systems with Smithtown (T), New York; their reported population-served values total 1,130,222 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 |
|---|---|---|---|
| Suffolk County Water AuthorityNY5110526 | 1,100,000 | Ground water | No current violation flagged |
| Smithtown Water DistrictNY5105656 | 19,635 | Ground water purchased | No current violation flagged |
| St James Water DistrictNY5103266 | 10,587 | Ground water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Smithtown (T), New York
EPA classifies 3 systems serving Smithtown (T), New York across 2 primary-source categories; Ground water is the largest category with 1 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.