County · New York
Cattaraugus County, New York: drinking water records
This overview covers 27 ZIP codes and 46 community water systems in Cattaraugus County. It also stands in for 5 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 |
|---|---|---|---|---|---|
| Olean City NY0400345 | 14,500 | 240 | 0 | 0 | 3.5 ppb |
| Salamanca City NY0400349 | 5,815 | 120 | 1 | 0 | 2.6 ppb |
| Gowanda Village NY0400340 | 2,800 | 0 | 0 | 2 | 1.3 ppb |
| Cattaraugus Village NY0400335 | 1,185 | 0 | 0 | 3 | 1 ppb |
| Delevan Village NY0400336 | 1,090 | 0 | 0 | 1 | 1 ppb |
| Machias Town Water District NY0400344 | 700 | 0 | 0 | 1 | 1.8 ppb |
| Twin Lakes Mobile Homes NY0400884 | 550 | 0 | 0 | 1 | 0 ppb |
| Ashford West Valley Town Water District NY0430123 | 410 | 0 | 0 | 1 | 0 ppb |
| Prospect St. Water District NY0430098 | 95 | 0 | 0 | 1 | 1.3 ppb |
| Kingston Center AN0 RI2000165 | 77 | 0 | 0 | 2 | 116 ppb |
| Otto Town Water District NY0400346 | 24 | 0 | 0 | 1 | 1 ppb |
| Allegany Village NY0400330 | 2,000 | 0 | 0 | 0 | 2.6 ppb |
| Allegany Town District #8 (St. Bonas) NY0430041 | 1,850 | 0 | 0 | 0 | 2.6 ppb |
| Franklinville Village NY0400339 | 1,760 | 0 | 0 | 0 | 1 ppb |
| Randolph Town Water District NY0400348 | 1,738 | 0 | 0 | 0 | 2.2 ppb |
| Ellicottville Town Water District NY0412217 | 1,420 | 0 | 0 | 0 | 1.4 ppb |
| Little Valley Village NY0400343 | 1,188 | 0 | 0 | 0 | 1.4 ppb |
| Portville Village NY0400347 | 1,040 | 0 | 0 | 0 | 0 ppb |
| Yorkshire Town Water District #1 NY0412216 | 900 | 0 | 0 | 0 | 2.4 ppb |
| South Dayton Village NY0400351 | 661 | 0 | 0 | 0 | 4.7 ppb |
| Perrysburg Town Central Water District NY0419355 | 584 | 0 | 0 | 0 | 1.8 ppb |
| Allegany Town Consolidated District #1 NY0400331 | 480 | 0 | 0 | 0 | 2.6 ppb |
| Carrollton Limestone Town Water District NY0400342 | 459 | 0 | 0 | 0 | 0.8 ppb |
| Hinsdale Town Water District NY0400341 | 350 | 0 | 0 | 0 | 2 ppb |
| Olean Town Water District NY0422400 | 350 | 0 | 0 | 0 | 5 ppb |
ZIP reports in Cattaraugus 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: 14041, 14726, 14729, 14783, 14788.
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.