Colorado Water Quality Reports
Comprehensive water quality data for 27 cities across Colorado. View EPA-verified contaminant levels and get filter recommendations.
27
Cities
0
Safe
4
Monitor
23
At Risk
Cities in Colorado
Arvada
People Served1287K
Contaminants Tested20
Above Guidelines4
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Aurora
People Served1287K
Contaminants Tested20
Above Guidelines4
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Centennial
People Served1287K
Contaminants Tested20
Above Guidelines4
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Commerce City
People Served1287K
Contaminants Tested20
Above Guidelines4
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Denver
People Served1287K
Contaminants Tested20
Above Guidelines4
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Englewood
People Served1287K
Contaminants Tested20
Above Guidelines4
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Highlands Ranch
People Served1287K
Contaminants Tested20
Above Guidelines4
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Lakewood
People Served1287K
Contaminants Tested20
Above Guidelines4
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Thornton
People Served1287K
Contaminants Tested20
Above Guidelines4
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Westminster
People Served1287K
Contaminants Tested20
Above Guidelines4
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Parker
People Served487K
Contaminants Tested20
Above Guidelines7
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Colorado Springs
People Served464K
Contaminants Tested20
Above Guidelines5
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Broomfield
People Served193K
Contaminants Tested20
Above Guidelines7
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Fort Collins
People Served180K
Contaminants Tested20
Above Guidelines4
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Boulder
People Served166K
Contaminants Tested20
Above Guidelines3
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Pueblo
People Served113K
Contaminants Tested20
Above Guidelines5
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Greeley
People Served108K
Contaminants Tested20
Above Guidelines5
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Windsor
People Served108K
Contaminants Tested20
Above Guidelines5
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Longmont
People Served102K
Contaminants Tested20
Above Guidelines3
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Castle Rock
People Served100K
Contaminants Tested20
Above Guidelines6
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Johnstown
People Served97K
Contaminants Tested20
Above Guidelines4
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Loveland
People Served97K
Contaminants Tested20
Above Guidelines4
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Brighton
People Served69K
Contaminants Tested20
Above Guidelines6
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Vail
People Served52K
Contaminants Tested20
Above Guidelines3
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Fountain
People Served48K
Contaminants Tested13
Above Guidelines4
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Grand Junction
People Served35K
Contaminants Tested20
Above Guidelines6
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Berthoud
People Served22K
Contaminants Tested20
Above Guidelines3
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