Water Quality in Bryn Mawr, PA (18970)
EPA violation data for public water systems serving ZIP code 18970.
Active Health Violations
10 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.
553
Population
6
Water Systems
123
Violations (5yr)
10
Health-Based
Location
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Water Systems Serving This Area (6)
Phila Sub Water Co
Lower Bucks Co Joint Mun Auth
All resolvedTrumbauersville Mun Waterworks
8 health-basedHelens Deli
Pocono Plateau Park Well 1
1 health-basedNorth Penn Gun Club
1 health-basedContaminants Found
A naturally occurring element that can cause cancer and other health effects at high levels.
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Bryn Mawr (18970) has more violations than 97% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 123.
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.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
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.