COUNTY WATER-SYSTEM LEDGER
Blair, Pennsylvania
EPA’s September 2026 export lists 8 active community water systems serving Blair, Pennsylvania, with 1 current-violation flags and 1 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Blair, Pennsylvania
EPA associates 8 covered systems with Blair, Pennsylvania; their reported population-served values total 92,077 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Altoona Water AuthorityPA4070023 | 62,500 | Surface water | Current serious-violator flag |
| Hollidaysburg Muni AuthPA4070017 | 8,523 | Surface water purchased | No current violation flagged |
| Tyrone Boro Water AuthPA4070021 | 6,500 | Surface water | No current violation flagged |
| Roaring Spring Muni Water AuthPA4070019 | 3,182 | Ground water | No current violation flagged |
| Bellwood Boro AuthPA4070009 | 3,162 | Surface water purchased | No current violation flagged |
| Martinsburg Muni AuthPA4070030 | 3,160 | Ground water | No current violation flagged |
| Blair Twp Water & Sewer AuthPA4070011 | 2,550 | Surface water purchased | No current violation flagged |
| Greenfield Twp Muni AuthPA4070058 | 2,500 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Blair, Pennsylvania
EPA classifies 8 systems serving Blair, Pennsylvania across 3 primary-source categories; Surface water is the largest category with 2 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.