Water Quality in Bryn Mawr, PA (18974)
EPA violation data for public water systems serving ZIP code 18974.
Past Health-Based Violations
4 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 171 monitoring/reporting violations.
More violations than 98% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
43,122
Population
34
Water Systems
175
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (34)
Phila Sub Water Co
Lower Bucks Co Joint Mun Auth
All resolvedWarminster Municipal Authority
All resolvedWarminster Heights
Neshaminy Warwick Pres Church
All resolvedVereinigungerzgebirge
Werner Park
Us Naval Warfare Center
Wawa #149
Lookout Park
Warwick Twin Rinks
Wycombe Publick House
Warminster Swim Club
Carousel Farm Ed Center
2 health-basedChrists Home For The Aged
Sumerton Springs (Driving Rang
Christ Home
Jakes Hartsville Inn
Yum Yum Bake Shops
Lahaska Country Deli
John Wagner & Sons
Odyssey Behavioral Health
1 health-basedBucks County Drive In
La Campagna
All resolvedLaferty Chevrolet
Tanner Brothers
All resolvedKruse Tool And Die Inc
Swemco
Lynn Electrionics
Locklyn Hall School
Lions Camp Kirby Inc
Curran Mfg Co Inc
Anchor Presbyterian Church
1 health-basedNaval Air Development Center
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
A naturally occurring element that can cause cancer and other health effects at high levels.
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Bryn Mawr (18974) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 175.
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
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.