Water Quality in Williamsport, PA (17765)
EPA violation data for public water systems serving ZIP code 17765.
No Health-Based Violations
None of the 8 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are41 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 88% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
1,279
Population
8
Water Systems
41
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (8)
Williamsport Mun Water Auth
Little Pine State Pk
Seshequin Trail Campsites Inc
Wheel Inn Inc
All resolvedRoaring Branch Waterworks
All resolvedMidway Truck Stop
Sweithelms General Store
Hideaway Motel And Restaurant
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Williamsport (17765) has more violations than 88% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 41, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.