Water Quality in Allentown, PA (18031)
EPA violation data for public water systems serving ZIP code 18031.
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 81% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
11,570
Population
33
Water Systems
23
Violations (5yr)
2
Health-Based
Location
Loading map...
Water Systems Serving This Area (33)
Lca Allentown Division
All resolvedReading Area Water Authority
1 health-basedLca Wlsa Central Division
Bruce Penn Home Dev-C/O Upr Ma
Hometown Breakfast Bar & Grill
Green Acres Mobilehome Park
Terry Hill Water Park
Trexlertown Fire Company
Ziegels Ucc Ch %Rev D Hoffman
Goddard School
Premise Maid Candies
1 health-basedTwin Ponds Mobilehome Park
Upper Macungie Township Park
St Pauls Lutheran Church
Breinigsville Hotel
Rural Sportsmens Assn
Foley Cat
All resolvedZiegels Union Church
All resolvedBoiling Spring
Earl T Adams Memorial Park
All resolvedHoffman Springs
Poland Springs Bottling
Green Waltz Spring
Arrowhead Mountain Spring Wtr
Robert M Fegley Vfw Post 8282
Far-A-Way Springs
Pink'S Drive-In
Calistoga Montain Spr. Water
Beckett'S Drive Inn-Cj Beckett
Primo Brands Inc-Garden Spring
Nwna Inc - Breiningsville Pa
Nwna Inc - Houston Tx
Nwna Inc - Ontario Canada
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.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Allentown (18031) has more violations than 81% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 23.
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.