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DE tap water quality, city by city
40 cities and towns in DE are served by an active community water system in the EPA's records. Each page below translates that system's EPA-reported history into plain English.
According to EPA SDWIS data, retrieved June 2026.
- Bear
- Bethany Beach
- Blades
- Bridgeville
- Camden
- Camden-Wyoming
- Clarksville
- Claymont
- Dagsboro
- Delmar
- Dover
- Felton
- Frankford
- Frederica
- Georgetown
- Greenwood
- Harrington
- Hartly
- Hockessin
- Kenton
- Laurel
- Lewes
- Long Neck
- Magnolia
- Middletown
- Milford
- Millsboro
- Milton
- Nassau
- New Castle
- Newark
- Ocean View
- Rehoboth
- Rehoboth Beach
- Seaford
- Selbyville
- Smyrna
- Wilmington
- Winterthur
- Wyoming