Tap Water Quality Report for Madison, Ohio

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.

Madison, Ohio tap water has 215 total contaminants, with 16 being above EPA standards and 152 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (17)

17 water systems serve Madison, Ohio. Select one or more to filter the data below.

LONDON CITY PWS
Public Water System ID:OH4900712
Population Served:10,256
Primary Source:Ground water
Last Updated:Nov 5, 2024
Contact:
MID-OHIO WSD WATER DISTRICT 1
Public Water System ID:OH4901012
Population Served:5,176
Primary Source:Ground water
Last Updated:Nov 5, 2024
Contact:
MID-OHIO WSD PLAIN CITY WTP
Public Water System ID:OH4901112
Population Served:4,900
Primary Source:Ground water
Last Updated:Nov 5, 2024
Contact:
WEST JEFFERSON VILLAGE PWS
Public Water System ID:OH4902012
Population Served:4,222
Primary Source:Ground water
Last Updated:Nov 5, 2024
Contact:
CHOCTAW UTILITIES, INC.
Public Water System ID:OH4900212
Population Served:2,000
Primary Source:Ground water
Last Updated:Nov 5, 2024
Contact:
MOUNT STERLING VILLAGE PWS
Public Water System ID:OH4900812
Population Served:2,000
Primary Source:Ground water
Last Updated:Nov 5, 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).