Water Quality in Bryn Mawr, PA (18940)
EPA violation data for public water systems serving ZIP code 18940.
No Health-Based Violations
None of the 31 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are56 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 92% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
29,626
Population
31
Water Systems
56
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (31)
Phila Sub Water Co
Lower Bucks Co Joint Mun Auth
All resolvedNewtown Artesian Water Co
All resolvedBucks County Community College
All resolvedTwp Of Upper Makefield
Somebody Small Co Bccc
Dunkin Donuts Newtown
Sol Feinstone Elem School
All resolvedWrightstown Elem School
All resolvedPort Drive-In % Mr Joe Farrugg
Carousel Vill At Indian Walk
All resolvedThe Fancy Fig
All resolvedBuckingham Vly Rehab & Nursing
All resolvedBrownsburg Park
Popolo
Tyler State Park
Holy Nativity Episcopal Church
Moonlight
Wcnc
Ascension Lutheran Church
Indian Walk Coffee Shop
Birchwood Farms
All resolvedHopewell Valley Health And Fitness Cente
Vinces Pizzeria & Taproom
All resolvedToday Inc
Today Inc
First National Bank Of Newtown
Tavern At Penns Park
Winslow Inn & Suites
Upper Makefield Enclave
Yamamoto And Sons
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
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.
Similar to nitrate — harmful to infants at high levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Bryn Mawr (18940) has more violations than 92% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 56, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.