Spokane
Spokane County, Washington
100 Excellent
Water Quality Score
100/100
Grade
A
Water Systems
1
Population
228,989
Key Contaminants
Nitrate
5.5201 / 10 mg/L
0 mg/L MCL: 10 mg/L
Fluoride
2.1456 / 4 mg/L
0 mg/L MCL: 4 mg/L
PFAS (Per- and Polyfluoroalkyl Substances)
0.0019 / 0.004 μg/L
0 μg/L MCL: 0.004 μg/L
Selenium
19.2296 / 50 μg/L
0 μg/L MCL: 50 μg/L
Uranium
7.1099 / 30 μg/L
0 μg/L MCL: 30 μg/L
Benzene
0.5324 / 5 μg/L
0 μg/L MCL: 5 μg/L
Arsenic
0.2649 / 10 μg/L
0 μg/L MCL: 10 μg/L
Water Systems Serving Spokane (1)
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Water quality can vary by neighborhood in Spokane.