County · Pennsylvania
Blair County, Pennsylvania: drinking water records
This overview covers 15 ZIP codes and 25 community water systems in Blair 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 |
|---|---|---|---|---|---|
| Altoona Water Authority PA4070023 | 62,500 | 480 | 0 | 3 | 2.9 ppb |
| Hollidaysburg Muni Auth PA4070017 | 8,523 | 120 | 0 | 0 | 0.7 ppb |
| Tyrone Boro Water Auth PA4070021 | 6,500 | 120 | 0 | 0 | 0 ppb |
| Blair TWP Water & Sewer Auth PA4070011 | 2,550 | 0 | 0 | 1 | 1 ppb |
| Fredericksburg Water Assn PA4070031 | 300 | 0 | 0 | 1 | 3 ppb |
| Sproul Water Assn PA4070047 | 180 | 0 | 0 | 4 | 19.8 ppb |
| Ridge View Personal Care Home PA4070054 | 35 | 0 | 0 | 1 | 1 ppb |
| Apple Blossom Lane MHP PA4070050 | 31 | 0 | 0 | 2 | 20.2 ppb |
| Roaring Spring Muni Water Auth PA4070019 | 3,182 | 0 | 0 | 0 | 3 ppb |
| Bellwood Boro Auth PA4070009 | 3,162 | 0 | 0 | 0 | 1 ppb |
| Martinsburg Muni Auth PA4070030 | 3,160 | 0 | 0 | 0 | 7 ppb |
| Greenfield TWP Muni Auth PA4070058 | 2,500 | 0 | 0 | 0 | 4 ppb |
| Duncansville Muni Water Auth PA4070012 | 2,350 | 0 | 0 | 0 | 1 ppb |
| Williamsburg Munic Auth PA4070022 | 1,800 | 0 | 0 | 0 | 1 ppb |
| Hillcrest Communities LP PA4070045 | 350 | 0 | 0 | 0 | 2 ppb |
| Blair MHP PA4070016 | 185 | 0 | 0 | 0 | 1 ppb |
| Henrietta Mutual Water Assn PA4070026 | 165 | 0 | 0 | 0 | 22 ppb |
| Vail Water Assn PA4070056 | 98 | 0 | 0 | 0 | 1 ppb |
| Busti Mobile Home Park NY0600808 | 97 | 0 | 0 | 0 | 0.5 ppb |
| East Sharpsburg Water Assn PA4070033 | 95 | 0 | 0 | 0 | 13 ppb |
| Westwood Park Water Co PA4070059 | 95 | 0 | 0 | 0 | 20.9 ppb |
| Curryville Water Auth PA4070298 | 85 | 0 | 0 | 0 | 2 ppb |
| Ore Hill Water Assn PA4070297 | 80 | 0 | 0 | 0 | 4 ppb |
| Bel Air Park Apts PA4070060 | 44 | 0 | 0 | 0 | 4.7 ppb |
| Freedom TWP Water & Sewer PA4070034 | 1,400 | 0 | 0 | 0 | not reported |
ZIP reports in Blair 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: 16637, 16693.
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.