Delaware

Delaware drinking water quality

Every public water system in Delaware we've verified. Each report covers one calendar year and shows the utility's own measured contaminant levels against federal limits.

282 water systems mapped in Delaware

• Hanover Foods Corporation (2022)
  1 contaminants measured· 1 at or above the limit
• Lewes Board of Public Works (2025)
  1 contaminants measured· 1 at or above the limit
• Millsboro Water Department (2025)
  1 contaminants measured· 1 at or above the limit
• Tall Pines Resort Community Sys1 (2025)
  1 contaminants measured· 1 at or above the limit
• Northside Professional Center (2025)
  1 contaminants measured· 1 at or above the limit
• Sand Hill Acres (2025)
  1 contaminants measured
• Sussex Manor Mobile Home Park (2025)
  1 contaminants measured
• Winterthur (2024)
  1 contaminants measured
• Fieldstone Golf Club (2020)
  1 contaminants measured
• Peddlers Village Shopping Center (2023)
  1 contaminants measured
• Garrison Lake Pump District (2026)
  1 contaminants measured
• Frederick Lodge Pump District (2025)
  1 contaminants measured
• Mt Pleasant Mhp, Llc (2025)
  1 contaminants measured
• Delaware Correctional Center (2024)
  1 contaminants measured
• Village Square Academy Learning Center (2025)
  1 contaminants measured
• St Andrews School I (2023)
  1 contaminants measured
• Centreville Layton School System I (2025)
  1 contaminants measured
• Kent County Motor Sales (2023)
  1 contaminants measured
• Upcountry Manufactured Home Community (2023)
  1 contaminants measured
• Hunters Pointe Pump District (2025)
  1 contaminants measured
• Summit Aviation (2024)
  1 contaminants measured
• Dove Estates (2023)
  1 contaminants measured
• Cooper Farm Pump District (2025)
  1 contaminants measured
• Serenity Manor Estates (2021)
  1 contaminants measured
• Camden Pump District (2024)
  1 contaminants measured
• Voshells Cove Pump District (2025)
  1 contaminants measured
• Harrington Water Department (2025)
  1 contaminants measured
• Countryside Estates (2025)
  1 contaminants measured
• J & J Mhp (2021)
  1 contaminants measured
• Willow Tree Properties Llc (2024)
  1 contaminants measured
• Hartly Elementary School (2025)
  1 contaminants measured
• Summit Pond Pump District (2023)
  1 contaminants measured
• Bridgeville Mall (tui) (2024)
  1 contaminants measured
• Center for the Creative Arts (2025)
  1 contaminants measured
• Child Craft Company (2025)
  1 contaminants measured
• Hunter Mill Estates Pump District (2024)
  1 contaminants measured
• Bethany Bay Pump District (2023)
  1 contaminants measured
• Discovery Cove Learning Center (2025)
  1 contaminants measured
• Holly View Mobile Home Park (2023)
  1 contaminants measured
• Indian River Acres Pump District (2025)
  1 contaminants measured
• Broadkiln Beach Water Company (tui) (2026)
  1 contaminants measured
• Seaford Water Department (2023)
  1 contaminants measured
• Henlopen Acres, Town of (2025)
  1 contaminants measured
• Bayshore Mobile Home Park (2024)
  1 contaminants measured
• Todds Mobile Court (2023)
  1 contaminants measured
• Cedar Village Llc (2023)
  1 contaminants measured
• Enchanted Acres Mhc Llc (2023)
  1 contaminants measured
• Fish Hook Mobile Home Park (2023)
  1 contaminants measured
• Homestead Park (2025)
  1 contaminants measured
• Laurel Village Mhc (2025)
  1 contaminants measured
• Colonial Estates Mobile Home Park (2024)
  1 contaminants measured
• New Market Village (2025)
  1 contaminants measured
• Pine Ridge Mobile Home Park (2024)
  1 contaminants measured
• Shady Oak Trailer Court (2025)
  1 contaminants measured
• Country Rest Home (2023)
  1 contaminants measured
• Stockley Center (2025)
  1 contaminants measured
• Greenwood Mennonite School (2025)
  1 contaminants measured
• Evelyn Morris Elementary School (2025)
  1 contaminants measured
• Sussex Technical School District (2025)
  1 contaminants measured
• Inv Performance Materials, Llc (2025)
  1 contaminants measured
• Allen Harim Foods Inc (2024)
  1 contaminants measured
• Allen Harim - Pinnacle Processing Plant (2026)
  1 contaminants measured
• Fishermans Village (tui) (2024)
  1 contaminants measured
• Carpenters Row (2025)
  1 contaminants measured
• Pleasant Acres, Llc (2025)
  1 contaminants measured
• Briarwood Manor Mhp (2025)
  1 contaminants measured
• Cape Windsor Community Association Inc (2025)
  1 contaminants measured
• Pepper Ridge Park (2024)
  1 contaminants measured
• Swann Keys (2032)
  1 contaminants measured
• Hartly Mobile Home Park (2021)
  1 contaminants measured
• Delaware Turnpike Administration (2025)
  1 contaminants measured
• Delaware Electric Co-op (2023)
  1 contaminants measured
• United Parcel Services (2023)
  1 contaminants measured
• Strimel's Mhp Llc. (2021)
  1 contaminants measured
• Allen Harim - Dagsboro Hatchery (2024)
  1 contaminants measured
• Baltimore Aircoil (2024)
  1 contaminants measured
• Carey Estates, Llc (2025)
  1 contaminants measured
• Holiday Acres, Llc (2024)
  1 contaminants measured
• Sussex County Industrial Airpark (2024)
  1 contaminants measured
• Mother Goose Children's Center (2025)
  1 contaminants measured
• Kitts Hummock Improvement Assoc (2021)
  1 contaminants measured
• Lakeland/beechwood Pump District (2024)
  1 contaminants measured
• Pinewood Acres (2021)
  1 contaminants measured
• Oak Grove Estates (2024)
  1 contaminants measured
• Woods Edge Mobile Home Park (2025)
  1 contaminants measured
• Artesian Water Company (2026)
  1 contaminants measured
• Bayview Improvement Company (awc) (2023)
  1 contaminants measured
• Bethany Beach Water Department (2025)
  1 contaminants measured
• Sussex Shores Water Company (2025)
  1 contaminants measured
• Greenwood Water Department (2023)
  1 contaminants measured
• Bridgeville Water Department (2025)
  1 contaminants measured
• Hilltop Trailer Park (2024)
  1 contaminants measured
• Law Mobile Home Park (2025)
  1 contaminants measured
• Camden Wyoming Sewer and Water Authority (2023)
  1 contaminants measured
• Veolia Water Delaware, Inc (2023)
  1 contaminants measured
• Delaware City Water Department (awc) (2025)
  1 contaminants measured
• Delmar Utility Comm (tn of Delmar) (2024)
  1 contaminants measured
• Holly Oak Mobile Home Park (2023)
  1 contaminants measured
• Stage Village Mhc (2024)
  1 contaminants measured
• Dover Water Department (2026)
  1 contaminants measured
• Village of Grandview (2022)
  1 contaminants measured
• Dover Air Park (2022)
  1 contaminants measured
• Maranatha Court (2024)
  1 contaminants measured
• Dover Air Force Base (2023)
  1 contaminants measured
• Felton Water Department (2025)
  1 contaminants measured
• Frederica Water Department (2025)
  1 contaminants measured
• Forest Park (2025)
  1 contaminants measured
• Georgetown Water Department (2023)
  1 contaminants measured
• Delaware State Fair (2023)
  1 contaminants measured
• Twin Maples Trailer Park (2023)
  1 contaminants measured
• Laurel Water Department (2023)
  1 contaminants measured
• Scottsdale Mobile Home Park (2024)
  1 contaminants measured
• Shady Acres Mobile Home Park (2026)
  1 contaminants measured
• Love Creek Mhc (2025)
  1 contaminants measured
• Cherry Creek Valley (2025)
  1 contaminants measured
• Magnolia Water Department (2023)
  1 contaminants measured
• Granada Mobile Home Court (2017)
  1 contaminants measured
• Southwood Acres Pump District (2024)
  1 contaminants measured
• Middletown Water Department (2024)
  1 contaminants measured
• Eds Mobile Home Park (2022)
  1 contaminants measured
• Milford Water Department (2025)
  1 contaminants measured
• Country Living Mobile Court (2024)
  1 contaminants measured
• Long Neck Water Company (2023)
  1 contaminants measured
• Bethany Crest Llc (2025)
  1 contaminants measured
• Milton Water Department (2025)
  1 contaminants measured
• Newark Water Department (2024)
  1 contaminants measured
• Municipal Services Commission (2025)
  1 contaminants measured
• Silver View Farm (2023)
  1 contaminants measured
• Rehoboth Bay Community (2025)
  1 contaminants measured
• Lakeside Home Llc (2025)
  1 contaminants measured
• Mobile Gardens I (2023)
  1 contaminants measured
• Selbyville Water Department (2024)
  1 contaminants measured
• Smyrna Water Department (2024)
  1 contaminants measured
• Hedgerow Hollow (2024)
  1 contaminants measured
• Woodland Trailer Court (2027)
  1 contaminants measured
• Wilmington Water Department (2023)
  1 contaminants measured
• Central Christian School (2025)
  1 contaminants measured
• Rehoboth Beach Water Department (2024)
  1 contaminants measured
• Siemens Healthcare Diagnostics (2024)
  1 contaminants measured
• Countryside Hamlet (2024)
  1 contaminants measured
• Dewey Beach Water Department (2023)
  1 contaminants measured
• Perdue Foods Llc (2025)
  1 contaminants measured
• Angola Beach Estates (2024)
  1 contaminants measured
• Evergreen Post Acute (2025)
  1 contaminants measured
• Blades, Town of (2024)
  1 contaminants measured
• Kent Co Regional Wastewater Facility (2024)
  1 contaminants measured
• Avalon Woods Owners Assoc Inc (2024)
  1 contaminants measured
• White Oak Subdivision (2023)
  1 contaminants measured
• County Seat Gardens (2025)
  1 contaminants measured
• Hy-point Dairy Farms (2025)
  1 contaminants measured
• Quillens Point (2023)
  1 contaminants measured
• Holly Hill Estates (2023)
  1 contaminants measured
• Bridgeville Pump District (2024)
  1 contaminants measured
• The Little Campus, Llc (2023)
  1 contaminants measured
• Mamie a Warren Center (2025)
  1 contaminants measured
• Forest Grove Pump District (2025)
  1 contaminants measured
• Sand Hill Mobile Home Park (2023)
  1 contaminants measured
• Epworth Christian School (2024)
  1 contaminants measured
• Blanton's Manufactured Home Community (2023)
  1 contaminants measured
• Rehoboth Pump District (tui) (2024)
  1 contaminants measured
• Angola Crest Ii (2023)
  1 contaminants measured
• Crosswinds Mhp, Llc (2024)
  1 contaminants measured
• Mountaire-millsboro (2024)
  1 contaminants measured
• O a Newton and Sons Inc (2023)
  1 contaminants measured
• Shawns Hideaway System #1 (2024)
  1 contaminants measured
• St Andrews School Ii (2023)
  1 contaminants measured
• Greenwood Country Retirement (2024)
  1 contaminants measured
• Flying Dutchman Mobile Home Park 2 (2023)
  1 contaminants measured
• Tall Pines Resort Community Sys2 (2025)
  1 contaminants measured
• Slaughter Beach Pws (2023)
  1 contaminants measured
• Flying Dutchman Mobile Home Park 3 (2023)
  1 contaminants measured
• Artesian Northern Sussex Regional (2024)
  1 contaminants measured
• University De Carvel Research & Ed Cntr (2023)
  1 contaminants measured
• Frederica Pump District (2025)
  1 contaminants measured
• Hertrich (2025)
  1 contaminants measured
• Country Grove (2023)
  1 contaminants measured
• Pepper Creek District (tui) (2025)
  1 contaminants measured
• Ponds of Willow Grove (2024)
  1 contaminants measured
• Ingram Village (awc) (2023)
  1 contaminants measured
• Hartly Family Learning Center (2025)
  1 contaminants measured
• Wilmington Vamc (2023)
  1 contaminants measured
• Messick's Mhc Llc System 2 (2023)
  1 contaminants measured
• Messick's Mhc Llc System 3 (2022)
  1 contaminants measured
• Messick's Mhc Llc System 4 (2022)
  1 contaminants measured
• Messick's Mhc Llc System 5 (2022)
  1 contaminants measured
• Messick's Mhc Llc System 6 (2022)
  1 contaminants measured
• Lotus Blossom Learning Center (2021)
  1 contaminants measured
• Woodbridge High School (2025)
  1 contaminants measured
• Mid-atlantic Family Practice (2025)
  1 contaminants measured
• Bylers Store (west Dover) (2024)
  1 contaminants measured
• Milton Cheer Inc. (2025)
  1 contaminants measured
• Skateworld, Inc. (2025)
  1 contaminants measured
• Ponds of Odessa (awc) (2022)
  1 contaminants measured
• Lullaby Learning Center, Inc. (2024)
  1 contaminants measured
• Centreville Layton School System Ii (2025)
  1 contaminants measured
• Acelero Learning Delaware (2025)
  1 contaminants measured
• Mountaire Farms Corporate Office (2024)
  1 contaminants measured
• The Vines of Sandhill (awc) (2023)
  1 contaminants measured
• Ingrams Point (awc) (2023)
  1 contaminants measured
• Allen Harim - Seaford Feed Mill (2024)
  1 contaminants measured
• Little Einstein's Preschool & School Age (2025)
  1 contaminants measured
• Captain's Way (2025)
  1 contaminants measured
• Greater Ellendale Water District (2023)
  1 contaminants measured
• Kingdom Kid's Day Care (2022)
  1 contaminants measured
• Kent Co. Regional Sports Complex - Sys 2 (2024)
  1 contaminants measured
• Seaglass at Rehoboth Beach (2023)
  1 contaminants measured
• Friendship Creek (2024)
  1 contaminants measured
• Sycamore Chase (awc) (2023)
  1 contaminants measured
• Willow Grove Mill (2023)
  1 contaminants measured
• Parkside (2023)
  1 contaminants measured
• Dove Run (2023)
  1 contaminants measured
• Kiddie Academy of Middletown (2024)
  1 contaminants measured
• Brick Mill Early Childhood Center (2023)
  1 contaminants measured
• Dove Run Shopping Center (2023)
  1 contaminants measured
• Stockley Regional (2024)
  1 contaminants measured
• Peaceful Child, Llc (2025)
  1 contaminants measured
• St Andrews Apartment New Addition (2025)
  1 contaminants measured
• Glasgow Pines Ii (2025)
  1 contaminants measured
• Hunters Run (2025)
  1 contaminants measured
• Kingsmill (2025)
  1 contaminants measured
• Villagebrook (2025)
  1 contaminants measured
• St Andrews Single Family Homes (2025)
  1 contaminants measured
• St Andrews Apartments (2025)
  1 contaminants measured
• Ascot Landing Subdivision (2025)
  1 contaminants measured
• Wild Quail Pump District (2024)
  1 contaminants measured
• Mallard Lakes (2024)
  1 contaminants measured
• Long Neck Village (2025)
  1 contaminants measured
• Meadows at Cubbage Pond (2024)
  1 contaminants measured
• Ollies Imagination Station (2025)
  1 contaminants measured
• Woodlands of Millsboro Pump District (2023)
  1 contaminants measured
• Teal Point (tui) (2023)
  1 contaminants measured
• Artesian Southern Sussex Regional (2025)
  1 contaminants measured
• Clearbrooke Estates Pump District (2023)
  1 contaminants measured
• Green Acres Pump District (2024)
  1 contaminants measured
• East Ncc District (2025)
  1 contaminants measured
• Perdue Feed Mill (2024)
  1 contaminants measured
• North West Pump District (2025)
  1 contaminants measured
• Canterbury Crossing Pump District (2024)
  1 contaminants measured
• Drawyers Creek Pump District (2024)
  1 contaminants measured
• South East Pump District (2025)
  1 contaminants measured
• Home Town Village of Cool Branch (2025)
  1 contaminants measured
• Point Farm (2025)
  1 contaminants measured
• Little Einstein's School Age Center (2025)
  1 contaminants measured
• South Shores (tui) (2023)
  1 contaminants measured
• Long Farm Estates Pump District (2025)
  1 contaminants measured
• First Step Preschool (2025)
  1 contaminants measured
• Misty Pines Pump District (2025)
  1 contaminants measured
• Cedar Landing (2023)
  1 contaminants measured
• Baywood Greens (2022)
  1 contaminants measured
• Church Creek (awc) (2025)
  1 contaminants measured
• Barkers Landing (2025)
  1 contaminants measured
• Crystal Steel Fabricators (2024)
  1 contaminants measured
• Sea Winds Pump District (2025)
  1 contaminants measured
• Grants Way Pump District (tui) (2025)
  1 contaminants measured
• Eagles Nest Fellowship Church (2025)
  1 contaminants measured
• Hocker's Super Center (2025)
  1 contaminants measured
• Laurel Pump District (2025)
  1 contaminants measured
• Emergency Operations Center (2023)
  1 contaminants measured
• Artesian Northern Kent Regional (2026)
  1 contaminants measured
• Country Club Village (tui) (2025)
  1 contaminants measured
• Blue Heron Estates (2023)
  1 contaminants measured
• Mt Cuba Center (2024)
  1 contaminants measured
• Sussex Academy Elementary School (2024)
  1 contaminants measured
• Rise & Shine Learning Center (2023)
  1 contaminants measured
• Childrens Secret Garden (2024)
  1 contaminants measured
• Fox Pointe Subdivision (2025)
  1 contaminants measured
• Brumbley's Family Park (2025)
  1 contaminants measured
• Sandy Ridge Pump District (2025)
  1 contaminants measured
• Shells Learning Center Iii (2024)
  1 contaminants measured
• Beach Babies Day Care (2024)
  1 contaminants measured
• Burtonwood (2023)
  1 contaminants measured
• Central Delaware Christian Academy (2024)
  1 contaminants measured
• Willow Lake Pump District (2024)
  1 contaminants measured
• Gander Woods Pump District (2024)
  1 contaminants measured
• Splash Bay Shore Day School (2025)
  1 contaminants measured
• Kristins Care and Learning Center (2024)
  1 contaminants measured
• Lighthouse Point and Community Center (2025)
  1 contaminants measured
• Deer Meadows (2023)
  1 contaminants measured
• Dagsboro Water Dept (2025)
  1 contaminants measured
• Bayside Pump District (tui) (2023)
  1 contaminants measured
• Kenton Pump District (2025)
  1 contaminants measured
• Paradise Estates (2025)
  1 contaminants measured