Water Quality in Bryn Mawr, PA (18929)
EPA violation data for public water systems serving ZIP code 18929.
Past Health-Based Violations
3 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 20 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.
9,748
Population
15
Water Systems
23
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (15)
Phila Sub Water Co
Lower Bucks Co Joint Mun Auth
All resolvedWarwick Twp Water & Sewer Auth
All resolvedWarwick Twp Country Crossing
Middle Bucks Institute Of Tech
Reese'S Inn
Diamond Ridge Camp
3 health-basedBucks County Country Club
Dembrosky'S Inc
Mobil Oil Corp Mini Market
Neshaminy Valley Golf Club
All resolvedLuigis
All resolvedJamison Exxon Shop
Warwick Tavern
Warwick Park
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.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Bryn Mawr (18929) 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.
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.