Water Quality in Bryn Mawr, PA (19342)
EPA violation data for public water systems serving ZIP code 19342.
Active Health Violations
11 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 97% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
20,770
Population
30
Water Systems
125
Violations (5yr)
11
Health-Based
Location
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Water Systems Serving This Area (30)
Chester Water Authority
Philadelphia Suburban Water Co
Phila Sub.Water Co.Crum Creek
Aqua Pa West Chester
All resolvedPa American Royersford
Glen Mills School
Malvern Camp At Stonybank
1 health-basedSleighton School
St Thomas The Apostle School
Concord Liberty Pres Church
Brinton Manor
7 health-basedAvon Grove Trailer Court
The Longhorn Ranch,Inc.
Malvern School Of Glen Mills
All resolvedWesttown Thornbury Elem Sch
Malvern Camp
Elam Hearts And Handspreschool
Commons At Chadds Ford
1 health-basedCreekside Diner
All resolvedCrier In The Country
Saint Thomas Apostle Church
Miller'S Cold Cuts
The Inn At Grace Winery
All resolvedWallys Weiner World
Pig Out Bbq
Brandywine Summit Center
Clayton Park Golf Course
Chuck'S Deli Plus
Knights Inn Glen Mills
2 health-basedKeen'S Stable
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
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.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Bryn Mawr (19342) has more violations than 97% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 125.
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.