Water Quality in Lancaster, PA (17540)
EPA violation data for public water systems serving ZIP code 17540.
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 76 monitoring/reporting violations.
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.
10,728
Population
28
Water Systems
77
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (28)
City Of Lancaster
1 health-basedUpper Leacock Township
All resolvedConestoga Valley Senior High
All resolvedMeadowbrook Farmers Market
Smoketown Elementary School
Leola Dairy Queen
Chesterbrook Academy
All resolvedPrime Property Rental Llc
All resolvedSimmontown Mennonite Ch
Meyer'S School
Musser'S Elementary
Eagle River Homes
All resolvedStauffers Of Kissel Hill Leola
West Lake Pipe & Fitting
All resolvedReflections
All resolvedWhitley East Llc
Penn Johns School
Sunnyside Elementary School
Monger Mobilehome Park
Stauffers Landscaping
Clean Burn
Pdq Industries Inc
Conestoga Valley Schools Admin
H.M. Stauffer & Sons
Fred Hess
Olde Village Mill
High Spring Water
All resolvedShoppes Of Oregon
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Similar to nitrate — harmful to infants at high levels.
At high levels, nitrate can cause blue baby syndrome in infants.
Used to disinfect water — generally safe at regulated levels.
A naturally occurring element that can cause cancer and other health effects at high levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Lancaster (17540) has more violations than 95% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 77.
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.
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.