Delaware tap water quality
135 community water systems
15.1%
exceed lead action level
(19/126 systems)
(19/126 systems)
40.9%
PFOA/PFOS detected
(9/22 systems)
(9/22 systems)
Largest water systems
Lead is the LCR 90th-percentile result; a value above 0.015 mg/L exceeds the
EPA action level. “—” means no lead sample is on file for that system.
| System | City | Population | Lead (p90) |
|---|---|---|---|
| WILMINGTON WATER DEPARTMENT | WILMINGTON | 107,976 | 0.0085 mg/L |
| VEOLIA WATER DELAWARE, INC | NEW CASTLE | 100,495 | 0.0131 mg/L |
| NEWARK WATER DEPARTMENT | NEWARK | 40,000 | 0.0055 mg/L |
| DOVER WATER DEPARTMENT | DOVER | 39,491 | 0.0041 mg/L |
| DEWEY BEACH WATER DEPARTMENT | DEWEY BEACH | 31,000 | 0.0127 mg/L |
| REHOBOTH BEACH WATER DEPARTMENT | REHOBOTH BEACH | 25,000 | 0.0050 mg/L |
| MIDDLETOWN WATER DEPARTMENT | MIDDLETOWN | 17,700 | 0.0040 mg/L |
| SUSSEX SHORES WATER COMPANY | BETHANY BEACH | 12,450 | 0.0065 mg/L |
| BETHANY BEACH WATER DEPARTMENT | BETHANY BEACH | 12,000 | 0.0120 mg/L |
| SMYRNA WATER DEPARTMENT | SMYRNA | 11,813 | 0.0050 mg/L |
| LONG NECK WATER COMPANY | MILLSBORO | 11,000 | 0.0129 mg/L |
| MILFORD WATER DEPARTMENT | MILFORD | 9,800 | 0.0061 mg/L |
| LEWES BOARD OF PUBLIC WORKS | LEWES | 9,627 | 0.0410 mg/L |
| MILLSBORO WATER DEPARTMENT | MILLSBORO | 8,568 | 0.0218 mg/L |
| GEORGETOWN WATER DEPARTMENT | GEORGETOWN | 7,259 | 0.0061 mg/L |
| SEAFORD WATER DEPARTMENT | SEAFORD | 6,699 | 0.0045 mg/L |
| BRIDGEVILLE WATER DEPARTMENT | BRIDGEVILLE | 6,000 | 0.0110 mg/L |
| MUNICIPAL SERVICES COMMISSION | NEW CASTLE | 5,549 | 0.0040 mg/L |
| CAMDEN WYOMING SEWER AND WATER AUTHORITY | CAMDEN-WYOMING | 5,000 | 0.0032 mg/L |
| LAUREL WATER DEPARTMENT | LAUREL | 3,984 | 0.0119 mg/L |
| HARRINGTON WATER DEPARTMENT | HARRINGTON | 3,562 | 0.0062 mg/L |
| ELKTON WEST | 3,500 | 0.0040 mg/L | |
| MILTON WATER DEPARTMENT | MILTON | 3,200 | 0.0078 mg/L |
| WILLOW GROVE MILL | MIDDLETOWN | 3,090 | 0.0000 mg/L |
| MOUNTAIN HILL WATER COMPANY | 2,154 | 0.0012 mg/L | |
| FELTON WATER DEPARTMENT | FELTON | 1,591 | 0.0083 mg/L |
| REHOBOTH BAY COMMUNITY | REHOBOTH BEACH | 1,575 | 0.0065 mg/L |
| MALLARD LAKES | FENWICK ISLAND | 1,500 | 0.0055 mg/L |
| PARKSIDE | MIDDLETOWN | 1,467 | 0.0000 mg/L |
| ANGOLA BEACH ESTATES | LEWES | 1,400 | 0.0255 mg/L |
| BLADES, TOWN OF | SEAFORD | 1,200 | 0.0143 mg/L |
| FREDERICA WATER DEPARTMENT | FREDERICA | 1,100 | 0.0220 mg/L |
| SUNLAKE TERRACE WATER SYSTEMS | DAVENPORT | 1,000 | 0.0200 mg/L |
| GREENWOOD WATER DEPARTMENT | GREENWOOD | 973 | 0.0180 mg/L |
| PINE HILLS | 953 | 0.0046 mg/L | |
| DAGSBORO WATER DEPT | DAGSBORO | 934 | 0.0120 mg/L |
| LAUREL VILLAGE MHC | LAUREL | 918 | 0.0175 mg/L |
| BAYWOOD GREENS | MILLSBORO | 909 | 0.0153 mg/L |
| DOVE RUN | MIDDLETOWN | 909 | 0.0000 mg/L |
| VILLAGEBROOK | MIDDLETOWN | 847 | 0.0109 mg/L |
| HOLLY HILL ESTATES | SMYRNA | 831 | 0.0003 mg/L |
| PORT DEPOSIT | 725 | 0.0064 mg/L | |
| WINTERTHUR | WINTERTHUR | 687 | 0.0120 mg/L |
| HUNTERS RUN | NEW CASTLE | 683 | 0.0070 mg/L |
| SEAGLASS AT REHOBOTH BEACH | REHOBOTH BEACH | 674 | 0.0077 mg/L |
| HOME TOWN VILLAGE OF COOL BRANCH | SEAFORD | 654 | 0.0049 mg/L |
| VALLEY RUN WATER SYSTEM | 626 | — | |
| CEDAR VILLAGE LLC | LINCOLN | 600 | 0.0098 mg/L |
| CAPE WINDSOR COMMUNITY ASSOCIATION INC | FENWICK ISLAND | 600 | 0.0046 mg/L |
| TALL PINES RESORT COMMUNITY SYS1 | LEWES | 538 | 0.0167 mg/L |
| BAYSHORE MOBILE HOME PARK | OCEAN VIEW | 533 | 0.0023 mg/L |
| HENLOPEN ACRES, TOWN OF | REHOBOTH BEACH | 522 | 0.0039 mg/L |
| FOX POINTE SUBDIVISION | CHESWOLD | 500 | 0.0050 mg/L |
| BARKERS LANDING | MAGNOLIA | 498 | 0.0016 mg/L |
| HARBOR VIEW | 437 | 0.0050 mg/L | |
| PARKWOOD ESTATES | PLANT CITY | 430 | 0.0041 mg/L |
| MAGNOLIA WATER DEPARTMENT | MAGNOLIA | 425 | 0.0049 mg/L |
| CARPENTERS POINT WATER CO. | 400 | 0.0109 mg/L | |
| SILVER VIEW FARM | REHOBOTH BEACH | 398 | 0.0110 mg/L |
| SAND HILL ACRES | GEORGETOWN | 384 | 0.0151 mg/L |
| KINGSMILL | NEW CASTLE | 381 | 0.0000 mg/L |
| ST ANDREWS APARTMENTS | BEAR | 360 | 0.0000 mg/L |
| GREATER ELLENDALE WATER DISTRICT | ELLENDALE | 350 | 0.0000 mg/L |
| LONG NECK VILLAGE | MILLSBORO | 345 | 0.0090 mg/L |
| SHAWNS HIDEAWAY SYSTEM #1 | MILLSBORO | 341 | 0.0043 mg/L |
| ASCOT LANDING SUBDIVISION | NEWARK | 338 | 0.0000 mg/L |
| WHISPERING PINES MOBILE HOME PARK | 325 | 0.0204 mg/L | |
| NEW MARKET VILLAGE | ELLENDALE | 321 | 0.0040 mg/L |
| CAREY ESTATES, LLC | MILLSBORO | 312 | 0.0148 mg/L |
| AVALON WOODS OWNERS ASSOC INC | GEORGETOWN | 306 | 0.0128 mg/L |
| KITTS HUMMOCK IMPROVEMENT ASSOC | DOVER | 305 | 0.0063 mg/L |
| COUNTY SEAT GARDENS | GEORGETOWN | 297 | 0.0110 mg/L |
| CECIL WOODS MOBILE HOME PARK WTP | 285 | 0.0070 mg/L | |
| ST ANDREWS APARTMENT NEW ADDITION | BEAR | 272 | 0.0000 mg/L |
| EVERGREEN POST ACUTE | SMYRNA | 256 | 0.0244 mg/L |
| COUNTRY LIVING MOBILE COURT | MILLSBORO | 255 | 0.0107 mg/L |
| DOVER AIR PARK | DOVER | 252 | 0.0035 mg/L |
| GLASGOW PINES II | NEW CASTLE | 235 | 0.0053 mg/L |
| PINE RIDGE MOBILE HOME PARK | SEAFORD | 222 | 0.0144 mg/L |
| MERIDIAN CROSSING APARTMENTS | 220 | — | |
| LOVE CREEK MHC | LEWES | 210 | 0.0117 mg/L |
| PEPPER RIDGE PARK | FRANKFORD | 209 | 0.0087 mg/L |
| TODDS MOBILE COURT | SEAFORD | 189 | 0.0044 mg/L |
| ARBOUR COURT | 180 | — | |
| COLONIAL ESTATES MOBILE HOME PARK | MILLSBORO | 165 | 0.0170 mg/L |
| ANGOLA CREST II | LEWES | 159 | 0.0062 mg/L |
| SHADY ACRES MOBILE HOME PARK | LAUREL | 152 | 0.0226 mg/L |
| SOUTH ASHMERE WATER ASSOCIATION INC | HINSDALE | 150 | 0.0058 mg/L |
| QUILLENS POINT | OCEAN VIEW | 150 | 0.0130 mg/L |
| OAK GROVE ESTATES | LITTLE CREEK | 150 | 0.0029 mg/L |
| NORTHWOOD MOUNTAIN VIEW MHP | NORTHWOOD | 148 | — |
| PINE VALLEY MOBILE HOME PARK | REHOBOTH BEACH | 145 | — |
| GRANADA MOBILE HOME COURT | MAGNOLIA | 138 | 0.0127 mg/L |
| HOLIDAY ACRES, LLC | DAGSBORO | 132 | 0.0064 mg/L |
| TWIN MAPLES TRAILER PARK | KENTON | 123 | 0.0037 mg/L |
| WILLOW TREE PROPERTIES LLC | DOVER | 123 | 0.0120 mg/L |
| ST ANDREWS SINGLE FAMILY HOMES | BEAR | 120 | 0.0000 mg/L |
| SAND HILL MOBILE HOME PARK | GEORGETOWN | 120 | 0.0084 mg/L |
| MT PLEASANT MHP, LLC | MIDDLETOWN | 117 | 0.0018 mg/L |
| BETHANY CREST LLC | MILLVILLE | 115 | 0.0202 mg/L |