Water Quality in Allentown, PA (18011)
EPA violation data for public water systems serving ZIP code 18011.
Active Health Violations
1 health-based violation 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 77% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,338
Population
13
Water Systems
18
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (13)
Lca Allentown Division
All resolvedReading Area Water Authority
1 health-basedLca Wlsa Central Division
Alburtis Borough Authority
All resolvedHuffs Union Ch
Mituo Village
Zion Lehigh Evan Luth Church
Alburtis Rod And Gun Club
Automatic Timing & Controls Co
Mertztown Rod & Gun Club
All resolvedWholesome Foods Catering
Woodside Mhp
Woodside Mhp
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Similar to nitrate — harmful to infants at high levels.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Allentown (18011) has more violations than 77% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 18.
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.