Water Quality in Williamsport, PA (16938)
EPA violation data for public water systems serving ZIP code 16938.
Past Health-Based Violations
1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 23 monitoring/reporting violations.
More violations than 81% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
837
Population
20
Water Systems
24
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (20)
Williamsport Mun Water Auth
Little Pine State Pk
Twin Streams Campground Lp
1 health-basedInn At Babbs Creek
Cold Spring Acres Association
Sawmill Mountain Inn
Inn 287
Inn 287
All resolvedThe Sawmill
Millers Store Blackwell
Witt/Yoder Personal Care Home
Idlewood Motel And Restaurant
Blackwell Hotel
Ski Sawmill
Idlewood Motel And Restaurant
Ski Sawmill Bunkhouse
Oregon Hill Water & Sewer
All resolvedKates Cafe
Ski Sawmill Farmhouse
Witt Home For The Aging
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Similar to nitrate — harmful to infants at high levels.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Williamsport (16938) has more violations than 81% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 24.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.