Tap Water Quality Report for Yakima, Washington

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.

Yakima, Washington tap water has 544 total contaminants, with 13 being above EPA standards and 330 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (88)

88 water systems serve Yakima, Washington. Select one or more to filter the data below.

YAKIMA WATER DIVISION CITY OF
Public Water System ID:WA5399150
Population Served:110,598
Primary Source:Surface water
Last Updated:Dec 11, 2024
NOB HILL WATER ASSOCIATION
Public Water System ID:WA5359700
Population Served:36,026
Primary Source:Ground water
Last Updated:Dec 11, 2024
SUNNYSIDE CITY OF
Public Water System ID:WA5385400
Population Served:17,037
Primary Source:Ground water
Last Updated:Dec 11, 2024
SELAH CITY OF
Public Water System ID:WA5377400
Population Served:12,515
Primary Source:Ground water
Last Updated:Dec 11, 2024
GRANDVIEW CITY OF
Public Water System ID:WA5328970
Population Served:11,010
Primary Source:Ground water
Last Updated:Dec 11, 2024
TOPPENISH WATER DEPARTMENT
Public Water System ID:WA5388850
Population Served:8,950
Primary Source:Ground water
Last Updated:Dec 11, 2024

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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).