Water quality for ZIP code 16657
ZIP 16657 covers Marklesburg in Huntingdon County, Pennsylvania, one of 28 ZIP codes in the county. 91 active public water systems serve the county; 68 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Huntingdon County
20 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Dudley Carbon Coalmont JM Auth |
403 | 8 | 8.7 mi | |
| Broadtop City Water Auth |
350 | 3 | 9.2 mi | |
| Walker Twp Muni Auth |
1,450 | 0 | 10.8 mi | |
| Wood Broad Top Wells Jmun Auth |
800 | 4 | 11.2 mi | |
| Hartslog Courts |
90 | 2 | 12.1 mi | |
| Saltillo Muni Water Works |
350 | 1 | 12.5 mi | |
| Mapleton Muni Water Auth |
570 | 6 | 13.3 mi | |
| ST Correct Inst Huntingdon |
2,200 | 1 | 13.8 mi | |
| Three Springs Boro Water CO |
442 | 3 | 14.1 mi | |
| Huntingdon Boro Water Dept |
13,776 | 2 | 14.6 mi | |
| Alexandria Boro Water Auth |
815 | 0 | 15.3 mi | |
| Mill Creek Area Mun Auth |
1,108 | 2 | 15.9 mi | |
| Emily Estates Subdiv |
162 | 0 | 16.3 mi | |
| Orbisonia Rockhill JT Mun Auth |
1,200 | 4 | 16.3 mi | |
| MT Union Municipal Auth |
5,801 | 5 | 16.4 mi | |
| Shirleysburg Muni Auth |
225 | 2 | 16.4 mi | |
| Petersburg Bor Water Auth |
650 | 4 | 18.0 mi | |
| Grier School |
450 | 2 | 21.7 mi | |
| Neelyton Water Coop |
57 | 1 | 22.4 mi | |
| Warriors Mark Gen Auth |
750 | 1 | 25.7 mi |
Non-community systems in Huntingdon County (70: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Huntingdon County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Pennsylvania records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.