California Water Quality Rankings

California Cities Ranked by Water Quality

Here are 179 California cities ranked by water quality. We started with the most contaminated city water supply and made our way to the least. The cities are color-coded for easy comparison. California Cities Ranked by Water Quality: Fresno – 53 contaminants Lake Elsinore – 47 Corona – 45 Rialto – 44 Thousand Oaks – […]

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