County · New York
Tompkins County, New York: drinking water records
This overview covers 13 ZIP codes and 50 community water systems in Tompkins County. It also stands in for 3 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 |
|---|---|---|---|---|---|
| Ithaca City NY5404416 | 29,457 | 120 | 0 | 1 | 2.4 ppb |
| Cornell University NY5417686 | 31,581 | 120 | 0 | 0 | 2.4 ppb |
| Ithaca Town WD NY5404419 | 13,000 | 95 | 1 | 0 | 8.8 ppb |
| Dryden Village NY5404412 | 2,000 | 0 | 0 | 7 | 2.4 ppb |
| Ulysses WD #3 NY5430047 | 400 | 0 | 0 | 6 | 2 ppb |
| Newfield Estates NY5405808 | 160 | 0 | 0 | 1 | 3 ppb |
| Mountain View Manor NY5405816 | 40 | 0 | 0 | 1 | 3 ppb |
| Willow Hill Mobile Court NY5405815 | 40 | 0 | 0 | 1 | 0 ppb |
| Cayuga Heights Village NY5404411 | 3,170 | 0 | 0 | 0 | 0.5 ppb |
| Lansing (V) NY5416982 | 3,100 | 0 | 0 | 0 | 0.5 ppb |
| Lansing (T) Consolidated WD NY5416959 | 3,000 | 0 | 0 | 0 | 0.5 ppb |
| Groton Village NY5404415 | 2,470 | 0 | 0 | 0 | 2 ppb |
| Newfield Wds NY5404421 | 2,300 | 0 | 0 | 0 | 9 ppb |
| Trumansburg Village NY5404417 | 2,300 | 0 | 0 | 0 | 2.8 ppb |
| Dryden WD NY5416960 | 725 | 0 | 0 | 0 | 0.5 ppb |
| Hanshaw Village MHP NY5405832 | 447 | 0 | 0 | 0 | 0 ppb |
| West Danby WD NY5404422 | 265 | 0 | 0 | 0 | 1 ppb |
| Country Acres MHP NY5405805 | 253 | 0 | 0 | 0 | 1 ppb |
| Little Creek MHP NY5405827 | 252 | 0 | 0 | 0 | 2.3 ppb |
| William George Agency NY5405812 | 250 | 0 | 0 | 0 | 0 ppb |
| Yellow Barn WD NY5404425 | 250 | 0 | 0 | 0 | 8 ppb |
| Sandy Creek Mobile Home Park NY5405831 | 215 | 0 | 0 | 0 | 1 ppb |
| Pleasant View MHP NY5405826 | 125 | 0 | 0 | 0 | 2.8 ppb |
| Beaconview MHP NY5405793 | 110 | 0 | 0 | 0 | 1 ppb |
| Country Gardens Apartments NY5405825 | 110 | 0 | 0 | 0 | 2 ppb |
ZIP reports in Tompkins 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: 13102, 14817, 14854.
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.