Tap Water Quality Report for Lancaster, Pennsylvania

Last Provided Update:N/A
Next Expected Update:April 19, 2025

Track your tap water quality with EPA-verified data on contaminants, violations, and health guidelines, updated quarterly from official water system monitoring results.

Lancaster, Pennsylvania tap water has 1000 total contaminants, with 52 being above EPA standards and 791 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (98)

98 water systems serve Lancaster, Pennsylvania. Select one or more to filter the data below.

CITY OF LANCASTER
Public Water System ID:PA7360058
Population Served:120,000
Primary Source:Surface water
Last Updated:Nov 22, 2024
Contact:
COLUMBIA WATER CO
Public Water System ID:PA7360123
Population Served:25,200
Primary Source:Surface water
Last Updated:Nov 22, 2024
Contact:
EPHRATA AREA JOINT AUTHORITY
Public Water System ID:PA7360045
Population Served:24,500
Primary Source:Surface water
Last Updated:Nov 22, 2024
Contact:
EAST HEMPFIELD WATER AUTH
Public Water System ID:PA7360063
Population Served:20,988
Primary Source:Surface water purchased
Last Updated:Nov 22, 2024
Contact:
ELIZABETHTOWN AREA WATER
Public Water System ID:PA7360124
Population Served:19,000
Primary Source:Surface water
Last Updated:Nov 22, 2024
Contact:
MT JOY BORO AUTH
Public Water System ID:PA7360091
Population Served:15,261
Primary Source:Groundwater under influence of surface water
Last Updated:Nov 22, 2024
Contact:

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Water Quality Analysis

Comprehensive analysis of your water quality, showing both detected contaminants and violations history. Note that exceeding EPA contaminant levels in a single test doesn't always constitute a violation, as violations typically require sustained exceedances or failure to follow required treatment protocols.

Water Analysis

View detected contaminants and concentration levels for your water system(s).