Water Quality in Bryn Mawr, PA (18074)
EPA violation data for public water systems serving ZIP code 18074.
Past Health-Based Violations
1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 58 monitoring/reporting violations.
More violations than 92% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,590
Population
15
Water Systems
59
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (15)
Philadelphia Suburban Water Co
Aqua Pa Main System
1 health-basedNorth Penn Water Authority
Pa American Norristown
All resolvedLorimar Park
North Wales Water Authority
All resolvedPerkiomenville Auction House
Perkiomenville Mennonite Churc
All resolvedSunset Hill Brewing Co
All resolvedCountry Chefs Kitchen
All resolvedGreen Lane Congregation
Wynns Creekside Inn
Bella Cucina
All resolvedPerkiomenville Hotel
Upper Frederick Fire Co
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
A naturally occurring element that can cause cancer and other health effects at high levels.
Similar to nitrate — harmful to infants at high levels.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Bryn Mawr (18074) has more violations than 92% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 59.
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.