Water Quality in Williamsport, PA (17702)
EPA violation data for public water systems serving ZIP code 17702.
Active Health Violations
2 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 98% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
10,488
Population
9
Water Systems
171
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (9)
Williamsport Mun Water Auth
Little Pine State Pk
Collomsville Mutual Waterworks
All resolvedImmaculate Conception School
Loyalsock Mobile Home Park
1 health-basedDtac
All resolvedWhos Inn
All resolvedBlack Walnut Bottom
Nomad Distilling
1 health-basedContaminants Found
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
Similar to nitrate — harmful to infants at high levels.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
Copper (Cu)
Exceeds limitSampled: Jul 2021
How Does This Compare?
Williamsport (17702) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 171.
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.
Whole House Carbon Filter
A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.
Targets:Chlorine, Sediment, Taste & Odor
Look for:NSF/ANSI 42 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.