County · Pennsylvania
Tioga County, Pennsylvania: drinking water records
This overview covers 21 ZIP codes and 19 community water systems in Tioga County. It also stands in for 9 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 |
|---|---|---|---|---|---|
| Mansfield Borough Mun Auth PA2590038 | 4,100 | 120 | 0 | 3 | 1.0 ppb |
| Wellsboro Municipal Authority PA2590042 | 8,225 | 120 | 0 | 0 | 1.0 ppb |
| Mansfield University PA2590812 | 3,000 | 0 | 0 | 4 | 3 ppb |
| Elkland Boro Water Authority PA2590035 | 2,660 | 0 | 0 | 3 | 2 ppb |
| Westfield Borough Waterworks PA2590043 | 1,300 | 0 | 0 | 3 | 4 ppb |
| Lawrenceville Boro Water Dept PA2590050 | 691 | 0 | 0 | 1 | 6 ppb |
| Knoxville Water Department PA2590036 | 590 | 0 | 0 | 1 | 1 ppb |
| Bloss Township Waterworks PA2590044 | 325 | 0 | 0 | 1 | 2 ppb |
| Nelson Township Authority PA2590051 | 300 | 0 | 0 | 13 | 3 ppb |
| Duncan TWP Municipal Authority PA2590048 | 220 | 0 | 0 | 1 | 3.5 ppb |
| Somers Lane MHP PA2590008 | 130 | 0 | 0 | 1 | 1 ppb |
| Hillside View MHP PA2590013 | 85 | 0 | 0 | 1 | 0.5 ppb |
| Blossburg Municipal Authority PA2590033 | 1,650 | 0 | 0 | 0 | 2 ppb |
| Tioga Boro Municipal Authority PA2590031 | 615 | 0 | 0 | 0 | 11 ppb |
| Hamilton TWP Mun Auth PA2590049 | 400 | 0 | 0 | 0 | 1 ppb |
| Osceola TWP Municipal Authorit PA2590045 | 400 | 0 | 0 | 0 | 2.5 ppb |
| Watrous Water Association PA2590029 | 75 | 0 | 0 | 0 | 3 ppb |
| Delmar Meadows MHC PA2590041 | 64 | 0 | 0 | 0 | 12 ppb |
| Pleasant Village MHP PA2590017 | 40 | 0 | 0 | 0 | 1 ppb |
ZIP reports in Tioga 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: 16917, 16921, 16930, 16932, 16935, 16938, 16946, 17727, 17765.
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.