Arizona Water Quality Reports
Comprehensive water quality data for 192 cities across Arizona. View EPA-verified contaminant levels and get filter recommendations.
192
Cities
27
Safe
63
Monitor
102
At Risk
Water Quality by County
Explore aggregated water quality scores across Arizona counties. Scores are calculated based on EPA data and weighted by population.
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Data from 162 cities serving 28,962,486 people across 15 counties.
Common Contaminants in Arizona
165 cities in Arizona have at least one contaminant above EPA health guidelines.
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Upload my testCities in Arizona
Glendale
People Served2026K
Contaminants Tested811
Above Guidelines23
View Report β
Peoria
People Served1875K
Contaminants Tested380
Above Guidelines19
View Report β
Guadalupe
People Served1860K
Contaminants Tested187
Above Guidelines9
View Report β
Paradise Valley
People Served1710K
Contaminants Tested262
Above Guidelines9
View Report β
Cave Creek
People Served1702K
Contaminants Tested190
Above Guidelines8
View Report β
New River
People Served1702K
Contaminants Tested190
Above Guidelines8
View Report β
Phoenix
People Served1696K
Contaminants Tested549
Above Guidelines14
View Report β
Anthem
People Served1695K
Contaminants Tested94
Above Guidelines5
View Report β
Flowing Wells
People Served796K
Contaminants Tested382
Above Guidelines15
View Report β
Casas Adobes
People Served780K
Contaminants Tested194
Above Guidelines11
View Report β
Oro Valley
People Served780K
Contaminants Tested194
Above Guidelines11
View Report β
Marana
People Served749K
Contaminants Tested284
Above Guidelines15
View Report β
Tucson
People Served747K
Contaminants Tested1767
Above Guidelines30
View Report β
Tucson Mountains
People Served738K
Contaminants Tested191
Above Guidelines11
View Report β
Catalina Foothills
People Served733K
Contaminants Tested98
Above Guidelines7
View Report β
Drexel Heights
People Served733K
Contaminants Tested98
Above Guidelines7
View Report β
South Tucson
People Served733K
Contaminants Tested98
Above Guidelines7
View Report β
Tanque Verde
People Served733K
Contaminants Tested98
Above Guidelines7
View Report β
Three Points
People Served733K
Contaminants Tested98
Above Guidelines7
View Report β
Tucson Estates
People Served733K
Contaminants Tested98
Above Guidelines7
View Report β
Valencia West
People Served733K
Contaminants Tested98
Above Guidelines7
View Report β
Mesa
People Served528K
Contaminants Tested256
Above Guidelines8
View Report β
Carefree
People Served252K
Contaminants Tested279
Above Guidelines12
View Report β
Chandler
People Served251K
Contaminants Tested587
Above Guidelines12
View Report β
Gilbert
People Served248K
Contaminants Tested181
Above Guidelines10
View Report β
Scottsdale
People Served241K
Contaminants Tested171
Above Guidelines4
View Report β
Goodyear
People Served182K
Contaminants Tested287
Above Guidelines14
View Report β
Tempe
People Served165K
Contaminants Tested93
Above Guidelines4
View Report β
Surprise
People Served157K
Contaminants Tested375
Above Guidelines15
View Report β
Avondale
People Served134K
Contaminants Tested202
Above Guidelines12
View Report β
Eloy
People Served134K
Contaminants Tested438
Above Guidelines13
View Report β
Florence
People Served121K
Contaminants Tested454
Above Guidelines15
View Report β
Yuma
People Served120K
Contaminants Tested853
Above Guidelines17
View Report β
Coolidge
People Served116K
Contaminants Tested255
Above Guidelines7
View Report β
Casa Grande
People Served114K
Contaminants Tested182
Above Guidelines5
View Report β
Arizona City
People Served113K
Contaminants Tested84
Above Guidelines2
View Report β
Donovan Estates
People Served103K
Contaminants Tested91
Above Guidelines4
View Report β
Buckeye
People Served102K
Contaminants Tested340
Above Guidelines8
View Report β
Prescott Valley
People Served100K
Contaminants Tested298
Above Guidelines8
View Report β
Queen Creek
People Served96K
Contaminants Tested98
Above Guidelines5
View Report β
San Tan Valley
People Served88K
Contaminants Tested276
Above Guidelines7
View Report β
Citrus Park
People Served81K
Contaminants Tested89
Above Guidelines2
View Report β
Flagstaff
People Served79K
Contaminants Tested582
Above Guidelines12
View Report β
Apache Junction
People Served78K
Contaminants Tested263
Above Guidelines12
View Report β
Gold Canyon
People Served62K
Contaminants Tested167
Above Guidelines4
View Report β
Queen Valley
People Served62K
Contaminants Tested84
Above Guidelines2
View Report β
Lake Havasu City
People Served60K
Contaminants Tested256
Above Guidelines10
View Report β
Sierra Vista
People Served58K
Contaminants Tested616
Above Guidelines17
View Report β
Maricopa
People Served56K
Contaminants Tested882
Above Guidelines23
View Report β
Sahuarita
People Served53K
Contaminants Tested614
Above Guidelines16
View Report β
Litchfield Park
People Served51K
Contaminants Tested95
Above Guidelines5
View Report β
El Mirage
People Served45K
Contaminants Tested182
Above Guidelines8
View Report β
Green Valley
People Served45K
Contaminants Tested438
Above Guidelines13
View Report β
Prescott
People Served43K
Contaminants Tested513
Above Guidelines22
View Report β
Youngtown
People Served43K
Contaminants Tested169
Above Guidelines4
View Report β
Sun City West
People Served40K
Contaminants Tested170
Above Guidelines4
View Report β
Sun City
People Served38K
Contaminants Tested251
Above Guidelines6
View Report β
Fountain Hills
People Served33K
Contaminants Tested89
Above Guidelines4
View Report β
Fortuna Foothills
People Served32K
Contaminants Tested88
Above Guidelines4
View Report β
Sacaton
People Served25K
Contaminants Tested0
Above Guidelines0
View Report β
Nogales
People Served25K
Contaminants Tested440
Above Guidelines14
View Report β
Pinetop Country Club
People Served22K
Contaminants Tested350
Above Guidelines2
View Report β
Willow Valley
People Served22K
Contaminants Tested181
Above Guidelines5
View Report β
Swift Trail Junction
People Served22K
Contaminants Tested173
Above Guidelines4
View Report β
Safford
People Served21K
Contaminants Tested179
Above Guidelines7
View Report β
Thatcher
People Served21K
Contaminants Tested264
Above Guidelines5
View Report β
Cactus Flats
People Served21K
Contaminants Tested90
Above Guidelines4
View Report β
Central
People Served21K
Contaminants Tested90
Above Guidelines4
View Report β
Sun Lakes
People Served20K
Contaminants Tested100
Above Guidelines3
View Report β
Fort Mohave
People Served20K
Contaminants Tested269
Above Guidelines8
View Report β
Somerton
People Served20K
Contaminants Tested84
Above Guidelines1
View Report β
Dragoon
People Served19K
Contaminants Tested191
Above Guidelines6
View Report β
Pinetop-Lakeside
People Served19K
Contaminants Tested351
Above Guidelines7
View Report β
Payson
People Served19K
Contaminants Tested365
Above Guidelines8
View Report β
Bullhead City
People Served18K
Contaminants Tested88
Above Guidelines4
View Report β
Rio Rico
People Served18K
Contaminants Tested87
Above Guidelines4
View Report β
Star Valley
People Served18K
Contaminants Tested86
Above Guidelines4
View Report β
Show Low
People Served17K
Contaminants Tested168
Above Guidelines3
View Report β
Douglas
People Served17K
Contaminants Tested429
Above Guidelines5
View Report β
Grand Canyon Village
People Served17K
Contaminants Tested92
Above Guidelines2
View Report β
Vail
People Served16K
Contaminants Tested503
Above Guidelines9
View Report β
Whiteriver
People Served16K
Contaminants Tested0
Above Guidelines0
View Report β
Heber-Overgaard
People Served15K
Contaminants Tested248
Above Guidelines8
View Report β
Sierra Vista Southeast
People Served15K
Contaminants Tested192
Above Guidelines2
View Report β
Verde Village
People Served13K
Contaminants Tested372
Above Guidelines9
View Report β
Cottonwood
People Served13K
Contaminants Tested340
Above Guidelines5
View Report β
Lake of the Woods
People Served12K
Contaminants Tested83
Above Guidelines2
View Report β
Wagon Wheel
People Served12K
Contaminants Tested83
Above Guidelines2
View Report β
Bisbee
People Served11K
Contaminants Tested177
Above Guidelines2
View Report β
Mammoth
People Served10K
Contaminants Tested20
Above Guidelines4
View Report β
Pinetop
People Served10K
Contaminants Tested277
Above Guidelines3
View Report β
Winslow
People Served10K
Contaminants Tested84
Above Guidelines1
View Report β
Mohave Valley
People Served9K
Contaminants Tested343
Above Guidelines6
View Report β
Doney Park
People Served9K
Contaminants Tested87
Above Guidelines2
View Report β
Mountain View Ranches
People Served9K
Contaminants Tested87
Above Guidelines2
View Report β
Timberline-Fernwood
People Served9K
Contaminants Tested87
Above Guidelines2
View Report β
Elephant Head
People Served9K
Contaminants Tested93
Above Guidelines3
View Report β
Luke Afb
People Served9K
Contaminants Tested98
Above Guidelines3
View Report β
Tolleson
People Served7K
Contaminants Tested83
Above Guidelines1
View Report β
Benson
People Served6K
Contaminants Tested82
Above Guidelines2
View Report β
Showing top 100 of 192 cities by population.
Use the search box above to find any city in Arizona.
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