Water Quality in Bryn Mawr, PA (19311)
EPA violation data for public water systems serving ZIP code 19311.
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 95% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
11,692
Population
25
Water Systems
79
Violations (5yr)
10
Health-Based
Location
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Water Systems Serving This Area (25)
Philadelphia Suburban Water Co
Aqua Pa West Chester
All resolvedPa American Royersford
Borough Of Avondale
All resolvedLoch Nairn Farm
9 health-basedShangra-La Apts Water Co
Modern Mushroom Farms
All resolvedEl Sombrero Kitchen
El Sombrero Meat Market
Spinning Wheel Inn
Boomers Family Fun
St Rocco Center
Avon Lake Club
Wetlands, Locksley Manor Golf Course
Willowdale Academy Avondale
Gourmets Delight Mushroom Co
Edgecraft Corporation
Scotts Avondale
Stroud Water Research Center
1 health-basedKaolin Mushroom Farms
Dove Foods Inc-Mayes
Bunnys Cree Mee Freeze
Birch'S Checkered Flag
Avon Freezer
Castle Transport & Service Co
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
Used to disinfect water — generally safe at regulated 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?
Bryn Mawr (19311) has more violations than 95% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 79.
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
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
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.