County · New York
Delaware County, New York: drinking water records
This overview covers 34 ZIP codes and 34 community water systems in Delaware County. It also stands in for 20 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 |
|---|---|---|---|---|---|
| Delhi Village NY1200257 | 3,833 | 120 | 0 | 0 | 8.8 ppb |
| Sidney Village NY1200270 | 3,800 | 120 | 4 | 0 | 0 ppb |
| Stamford Village NY1200272 | 1,280 | 0 | 0 | 1 | 1.8 ppb |
| Fleischmanns Village NY1200261 | 352 | 0 | 0 | 7 | 4.8 ppb |
| Delhi MHP LLC NY1206333 | 61 | 0 | 0 | 1 | 2 ppb |
| Walton Village NY1200274 | 3,010 | 0 | 0 | 0 | 0.7 ppb |
| Hancock Village NY1200266 | 1,182 | 0 | 0 | 0 | 3 ppb |
| Hobart Village NY1200267 | 700 | 0 | 0 | 0 | 3 ppb |
| Margaretville Village NY1200268 | 650 | 0 | 0 | 0 | 1.5 ppb |
| Downsville Water District NY1200258 | 617 | 0 | 0 | 0 | 1.5 ppb |
| Davenport Water District NY1200255 | 600 | 0 | 0 | 0 | 2.4 ppb |
| Roxbury Water District NY1200269 | 600 | 0 | 0 | 0 | 0 ppb |
| Franklin Village NY1200262 | 481 | 0 | 0 | 0 | 1.5 ppb |
| Grand Gorge Water District NY1200263 | 480 | 0 | 0 | 0 | 0 ppb |
| Arkville Water District NY1200249 | 400 | 0 | 0 | 0 | 0 ppb |
| Denver Water District NY1205399 | 361 | 0 | 0 | 0 | 0.8 ppb |
| Bloomville Water District NY1200250 | 350 | 0 | 0 | 0 | 0 ppb |
| Andes Water District NY1200248 | 260 | 0 | 0 | 0 | 4.5 ppb |
| Mountainview Mobile Home Park NY1206338 | 222 | 0 | 0 | 0 | 0.7 ppb |
| Hamden Water Dist 1 - Hamden NY1200265 | 175 | 0 | 0 | 0 | 1 ppb |
| Walton Country Meadow Park NY1220347 | 165 | 0 | 0 | 0 | 0.5 ppb |
| Treadwell Water District NY1200273 | 164 | 0 | 0 | 0 | 3.3 ppb |
| East Branch Valley Water District NY1200259 | 160 | 0 | 0 | 0 | 1 ppb |
| Cooks Falls Water District NY1200253 | 150 | 0 | 0 | 0 | 2 ppb |
| Fishs Eddy Community Water Sup NY1200260 | 150 | 0 | 0 | 0 | 2.8 ppb |
ZIP reports in Delaware 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: 12421, 12434, 12438, 12441, 12459, 12474, 12760, 13740, 13751, 13752, 13757, 13782, 13786, 13804, 13806, 13839, 13842, 13846, 13847, 13860.
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.