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Delaware Water Quality Reports

Comprehensive water quality data for 63 cities across Delaware. View EPA-verified contaminant levels and get filter recommendations.

63

Cities

6

Safe

23

Monitor

34

At Risk

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Delaware water quality ranking EPA-certified testing labs Water utilities in Delaware

Water Quality by County

Explore aggregated water quality scores across Delaware counties. Scores are calculated based on EPA data and weighted by population.

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Data from 60 cities serving 6,226,298 people across 3 counties.

Common Contaminants in Delaware

57 cities in Delaware have at least one contaminant above EPA health guidelines.

Bromodichloromethane(54 cities)Dichloroacetic Acid (DCA)(44 cities)Gross Alpha Activity(31 cities)Bromoform(21 cities)Arsenic(3 cities)Lead(3 cities)

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Cities in Delaware

Wilmington

People Served440K

Contaminants Tested529

Above Guidelines7

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New Castle

People Served337K

Contaminants Tested545

Above Guidelines6

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Wilmington Manor

People Served337K

Contaminants Tested545

Above Guidelines6

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Elsmere

People Served332K

Contaminants Tested525

Above Guidelines8

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Hockessin

People Served332K

Contaminants Tested518

Above Guidelines5

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Brookside

People Served332K

Contaminants Tested367

Above Guidelines5

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Edgemoor

People Served332K

Contaminants Tested367

Above Guidelines5

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Greenville

People Served332K

Contaminants Tested367

Above Guidelines5

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Newport

People Served332K

Contaminants Tested367

Above Guidelines5

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North Star

People Served332K

Contaminants Tested367

Above Guidelines5

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Pike Creek Valley

People Served332K

Contaminants Tested367

Above Guidelines5

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Pike Creek

People Served332K

Contaminants Tested367

Above Guidelines5

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Glasgow

People Served254K

Contaminants Tested554

Above Guidelines11

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Newark

People Served238K

Contaminants Tested485

Above Guidelines5

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Bear

People Served231K

Contaminants Tested190

Above Guidelines3

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Delaware City

People Served231K

Contaminants Tested190

Above Guidelines3

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St. Georges

People Served231K

Contaminants Tested190

Above Guidelines3

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Dover

People Served113K

Contaminants Tested1156

Above Guidelines17

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Kent Acres

People Served110K

Contaminants Tested413

Above Guidelines7

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Rodney Village

People Served110K

Contaminants Tested413

Above Guidelines7

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Bellefonte

People Served100K

Contaminants Tested177

Above Guidelines2

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Highland Acres

People Served99K

Contaminants Tested316

Above Guidelines5

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Bethany Beach

People Served62K

Contaminants Tested504

Above Guidelines7

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Camden

People Served59K

Contaminants Tested174

Above Guidelines2

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Dover Base Housing

People Served59K

Contaminants Tested174

Above Guidelines2

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Little Creek

People Served59K

Contaminants Tested174

Above Guidelines2

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Rising Sun-Lebanon

People Served59K

Contaminants Tested174

Above Guidelines2

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Wyoming

People Served59K

Contaminants Tested174

Above Guidelines2

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Ocean View

People Served52K

Contaminants Tested763

Above Guidelines11

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Millville

People Served40K

Contaminants Tested414

Above Guidelines5

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South Bethany

People Served37K

Contaminants Tested176

Above Guidelines3

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Rehoboth Beach

People Served27K

Contaminants Tested318

Above Guidelines2

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Smyrna

People Served26K

Contaminants Tested590

Above Guidelines8

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Henlopen Acres

People Served26K

Contaminants Tested325

Above Guidelines4

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Clayton

People Served20K

Contaminants Tested347

Above Guidelines6

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Lewes

People Served12K

Contaminants Tested914

Above Guidelines6

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Long Neck

People Served11K

Contaminants Tested301

Above Guidelines1

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Middletown

People Served11K

Contaminants Tested946

Above Guidelines13

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Fenwick Island

People Served10K

Contaminants Tested287

Above Guidelines4

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Odessa

People Served6K

Contaminants Tested200

Above Guidelines3

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Milton

People Served4K

Contaminants Tested653

Above Guidelines5

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Milford

People Served4K

Contaminants Tested498

Above Guidelines3

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Harrington

People Served4K

Contaminants Tested228

Above Guidelines4

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Selbyville

People Served4K

Contaminants Tested179

Above Guidelines2

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Bridgeville

People Served2K

Contaminants Tested20

Above Guidelines8

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Cheswold

People Served2K

Contaminants Tested395

Above Guidelines6

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Dagsboro

People Served2K

Contaminants Tested682

Above Guidelines9

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Felton

People Served2K

Contaminants Tested402

Above Guidelines4

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Blades

People Served1K

Contaminants Tested20

Above Guidelines5

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Slaughter Beach

People Served1K

Contaminants Tested160

Above Guidelines0

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Frederica

People Served1K

Contaminants Tested154

Above Guidelines2

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Winterthur

People Served1K

Contaminants Tested151

Above Guidelines2

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Lincoln

People Served1K

Contaminants Tested287

Above Guidelines0

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Laurel

People Served1K

Contaminants Tested228

Above Guidelines0

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Georgetown

People Served1K

Contaminants Tested493

Above Guidelines1

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Kenton

People Served0K

Contaminants Tested97

Above Guidelines2

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Ellendale

People Served0K

Contaminants Tested173

Above Guidelines1

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Rehoboth

People Served0K

Contaminants Tested126

Above Guidelines0

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Frankford

People Served0K

Contaminants Tested96

Above Guidelines2

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Townsend

People Served0K

Contaminants Tested98

Above Guidelines2

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Clarksville

People Served0K

Contaminants Tested156

Above Guidelines0

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Millsboro

People Served0K

Contaminants Tested147

Above Guidelines0

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Delmar

People Served0K

Contaminants Tested20

Above Guidelines3

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