County · New York
Ontario County, New York: drinking water records
This overview covers 19 ZIP codes and 39 community water systems in Ontario County. It also stands in for 2 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Canandaigua-Farmington Consolidated W.D. NY3401151 | 13,000 | 120 | 0 | 2 | 1.3 ppb |
| Bristol WD #1 NY3430041 | 203 | 120 | 0 | 13 | 1.3 ppb |
| Geneva City NY3401156 | 13,334 | 120 | 0 | 0 | 3 ppb |
| Canandaigua City NY3401150 | 11,264 | 120 | 0 | 0 | 1.2 ppb |
| Canandaigua Town Cons. WD NY3430008 | 6,800 | 120 | 0 | 0 | 1.3 ppb |
| Hopewell Cons WD 1 NY3411948 | 3,781 | 240 | 0 | 0 | 1.3 ppb |
| Gorham Town WD NY3401170 | 3,420 | 120 | 0 | 0 | 2.8 ppb |
| Geneva WD #2 Csa NY3404514 | 2,680 | 60 | 0 | 0 | 3.4 ppb |
| Phelps Town Consolidated WD NY3430034 | 2,175 | 120 | 0 | 0 | 1.8 ppb |
| Manchester Central WD NY3430021 | 1,000 | 0 | 0 | 3 | 1.3 ppb |
| Bristol Harbour Water Corp NY3400784 | 835 | 120 | 1 | 0 | 12 ppb |
| Bedrock Country Squire FL3350249 | 240 | 0 | 0 | 1 | 0 ppb |
| Hillside Mobile Home Park PA2350014 | 99 | 0 | 0 | 7 | 6 ppb |
| Riverside Park NY3400719 | 56 | 0 | 0 | 2 | 6.5 ppb |
| Dukes Landing (Morgan'S MHP ; Fish Camp) FL3350851 | 30 | 0 | 0 | 1 | 3.8 ppb |
| Mcwa - Geneva NY3404515 | 8,532 | 0 | 0 | 0 | 4 ppb |
| Seneca Town WD NY3401178 | 2,625 | 0 | 0 | 0 | 3.4 ppb |
| Victor Village NY3401166 | 2,443 | 0 | 0 | 0 | 4.4 ppb |
| Rushville Village NY3401164 | 2,341 | 0 | 0 | 0 | 2.1 ppb |
| Clifton Springs Village NY3401154 | 2,190 | 0 | 0 | 0 | 1.8 ppb |
| Phelps Village NY3401162 | 2,118 | 0 | 0 | 0 | 1.8 ppb |
| Bloomfield Village Consolidated NY3401155 | 1,814 | 0 | 0 | 0 | 9.6 ppb |
| Manchester Village NY3401160 | 1,709 | 0 | 0 | 0 | 1.3 ppb |
| Hopewell Consolidated WD #2 NY3401182 | 1,615 | 0 | 0 | 0 | 2.8 ppb |
| Shortsville Village NY3401165 | 1,320 | 0 | 0 | 0 | 1.8 ppb |
ZIP reports in Ontario County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 14471, 14475.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.