PFAS contamination data for 1,343 water systems in Delaware, serving 1,357,889 people.
Delaware follows federal EPA MCLs (PFOA/PFOS: 4 ppt).
DE follows federal EPA MCLs. PFAS investigation ongoing at Dover AFB and other sites.
Delaware follows federal EPA MCLs. PFAS contamination investigation at Dover AFB and industrial sites.
Free eligibility check — plus weekly MCL, deadline, and funding alerts for Delaware.
| System | City | Population | PFOA (ppt) | PFOS (ppt) | Status |
|---|---|---|---|---|---|
| ARTESIAN WATER COMPANY DE0000552 | NEWARK | 231,114 | 23.1 | 6 | Exceeds |
| WILMINGTON WATER DEPARTMENT DE0000663 | WILMINGTON | 107,976 | 9.9 | — | Exceeds |
| VEOLIA WATER DELAWARE, INC DE0000564 | WILMINGTON | 100,495 | 24.4 | — | Exceeds |
| REHOBOTH PUMP DISTRICT (TUI) DE0000991 | DOVER | 81,417 | 4.4 | — | Exceeds |
| BETHANY BAY PUMP DISTRICT DE0000221 | DOVER | 51,000 | — | 6.1 | Exceeds |
| NEWARK WATER DEPARTMENT DE0000630 | NEWARK | 40,000 | 25.3 | 7.5 | Exceeds |
| DOVER WATER DEPARTMENT DE0000571 | DOVER | 39,491 | — | — | Compliant |
| DEWEY BEACH WATER DEPARTMENT DE0000825 | FRANKFORD | 31,000 | 11 | — | Exceeds |
| REHOBOTH BEACH WATER DEPARTMENT DE0000723 | REHOBOTH BEACH | 25,000 | 14.9 | 6.2 | Exceeds |
| ARTESIAN SOUTHERN SUSSEX REGIONAL DE00A0323 | NEWARK | 18,015 | — | 4.7 | Exceeds |
| MIDDLETOWN WATER DEPARTMENT DE0000614 | MIDDLETOWN | 17,700 | — | — | Compliant |
| CAMDEN PUMP DISTRICT DE0000124 | DOVER | 17,208 | — | — | Compliant |
| SOUTHERN SHORES DE0000277 | DOVER | 15,000 | — | — | Compliant |
| MEADOWS PUMP DISTRICT DE0000271 | DOVER | 14,538 | — | — | Compliant |
| GARRISON LAKE PUMP DISTRICT DE0000004 | DOVER | 13,467 | — | — | Compliant |
| ANGOLA PUMP DISTRICT DE0000248 | DOVER | 13,114 | — | — | Compliant |
| SUSSEX SHORES WATER COMPANY DE0000557 | BETHANY BEACH | 12,450 | — | — | Compliant |
| BETHANY BEACH WATER DEPARTMENT DE0000556 | BETHANY BEACH | 12,000 | — | — | Compliant |
| SMYRNA WATER DEPARTMENT DE0000657 | SMYRNA | 11,813 | 9.8 | 6.7 | Exceeds |
| DOVER AIR FORCE BASE DE0000579 | DOVER | 11,000 | — | — | Compliant |
| LONG NECK WATER COMPANY DE0000625 | LONG NECK | 11,000 | — | — | Compliant |
| MILFORD WATER DEPARTMENT DE0000616 | MILFORD | 9,800 | — | — | Compliant |
| CHURCH CREEK (AWC) DE00A0428 | NEWARK | 9,654 | — | — | Compliant |
| LEWES BOARD OF PUBLIC WORKS DE0000602 | LEWES | 9,627 | 6.1 | 9.5 | Exceeds |
| MILLSBORO WATER DEPARTMENT DE0000622 | MILLSBORO | 8,568 | — | — | Compliant |
| BAYSIDE PUMP DISTRICT (TUI) DE00A0837 | DOVER | 8,400 | — | — | Compliant |
| THOMAS COVE DE00A0683 | NEWARK | 7,977 | — | — | Compliant |
| GEORGETOWN WATER DEPARTMENT DE0000592 | GEORGETOWN | 7,259 | 36 | 14 | Exceeds |
| FOX HUNTER CROSSING DE00A0349 | NEWARK | 7,035 | — | — | Compliant |
| ARTESIAN NORTHERN KENT REGIONAL DE00A0673 | NEWARK | 7,014 | — | — | Compliant |
| SEAFORD WATER DEPARTMENT DE0000246 | SEAFORD | 6,699 | — | — | Compliant |
| BRIDGEVILLE WATER DEPARTMENT DE0000559 | BRIDGEVILLE | 6,000 | — | — | Compliant |
| MUNICIPAL SERVICES COMMISSION DE0000634 | NEW CASTLE | 5,549 | — | — | Compliant |
| EAST NCC DISTRICT DE00A0334 | DOVER | 5,538 | — | — | Compliant |
| ARTESIAN NORTHERN SUSSEX REGIONAL DE0020003 | NEWARK | 5,511 | 5.7 | — | Exceeds |
| CAMDEN WYOMING SEWER AND WATER AUTHORITY DE0000563 | CAMDEN | 5,000 | — | — | Compliant |
| NORTH WEST PUMP DISTRICT DE00A0347 | DOVER | 4,149 | — | — | Compliant |
| LAUREL WATER DEPARTMENT DE0000597 | LAUREL | 3,984 | — | — | Compliant |
| HARRINGTON WATER DEPARTMENT DE0000126 | HARRINGTON | 3,562 | — | — | Compliant |
| SELBYVILLE WATER DEPARTMENT DE0000654 | SELBYVILLE | 3,502 | — | — | Compliant |
| CLAYTON WATER DEPARTMENT DE0000565 | CLAYTON | 3,500 | — | — | Compliant |
| ELKTON WEST MD0070015 | NEWARK | 3,500 | — | — | Compliant |
| MILTON WATER DEPARTMENT DE0000629 | MILTON | 3,200 | — | — | Compliant |
| BROADKILN BEACH WATER COMPANY (TUI) DE0000238 | DOVER | 3,171 | — | — | Compliant |
| WILLOW GROVE MILL DE0020122 | MIDDLETOWN | 3,090 | — | — | Compliant |
| DELAWARE CITY WATER DEPARTMENT (AWC) DE0000566 | NEWARK | 2,610 | — | — | Compliant |
| MILLPOND DISTRICT DE0000250 | DOVER | 2,481 | — | — | Compliant |
| MOUNTAIN HILL WATER COMPANY MD0070034 | NEWARK | 2,154 | — | — | Compliant |
| BAY COLONY DE0000988 | DOVER | 2,056 | — | — | Compliant |
| MALLARD DISTRICT DE0000070 | DOVER | 2,040 | — | — | Compliant |
| OCEAN VIEW WATER DEPARTMENT DE0020027 | OCEAN VIEW | 2,039 | — | — | Compliant |
| DELMAR UTILITY COMM (TN OF DELMAR) DE0000567 | DELMAR | 2,027 | — | — | Compliant |
| DELAWARE CORRECTIONAL CENTER DE0000011 | NEWARK | 2,000 | — | — | Compliant |
| MR. NATURAL BOTTLED WATER DE0000950 | OCEAN VIEW | 2,000 | — | — | Compliant |
| TOWNSEND WATER DEPARTMENT DE0000662 | NEWARK | 1,995 | — | — | Compliant |
| INDIAN LANDING - FISHERMAN PARK DE0000591 | MILLSBORO | 1,800 | — | — | Compliant |
| LEWES DISTRICT DE00A0082 | DOVER | 1,800 | — | — | Compliant |
| WEST DOVER PUMP DISTRICT DE00A0684 | DOVER | 1,665 | — | — | Compliant |
| NORTH DOVER DISTRICT DE0000577 | DOVER | 1,644 | — | — | Compliant |
| FELTON WATER DEPARTMENT DE0000580 | FELTON | 1,591 | — | — | Compliant |
| REHOBOTH BAY COMMUNITY DE0000645 | REHOBOTH BEACH | 1,575 | — | — | Compliant |
| CLAYTON SYSTEM 1 DE0001565 | CLAYTON | 1,566 | — | — | Compliant |
| BRIDGEVILLE PUMP DISTRICT DE0000949 | DOVER | 1,542 | — | — | Compliant |
| BETHANY MEADOWS DE0000933 | ODESSA | 1,533 | — | — | Compliant |
| BURTONWOOD DE00A0740 | NEWARK | 1,503 | — | — | Compliant |
| LOG CABIN HILL T.P. CAMP DE0000605 | LEWES | 1,500 | — | — | Compliant |
| MALLARD LAKES DE00A0169 | SELBYVILLE | 1,500 | — | — | Compliant |
| PARKSIDE DE0020123 | MIDDLETOWN | 1,467 | — | — | Compliant |
| GENERALS GREENE DE0000122 | ODESSA | 1,446 | — | — | Compliant |
| NEWPORT WATER DEPT DE0000635 | NEWPORT | 1,400 | — | — | Compliant |
| ANGOLA BEACH ESTATES DE0000840 | LEWES | 1,400 | — | — | Compliant |
| WOODS ON HERRING CREEK, THE DE0000181 | DOVER | 1,320 | — | — | Compliant |
| DICKERSON FARMS DE0000347 | MT. PLEASANT | 1,242 | — | — | Compliant |
| WHITE HOUSE BEACH INC DE0000626 | MILLSBORO | 1,230 | — | — | Compliant |
| WHISPERING PINES DE0000268 | DOVER | 1,200 | — | — | Compliant |
| BLADES, TOWN OF DE0000865 | BLADES | 1,200 | — | — | Compliant |
| PINEWOOD ACRES DE0000547 | DOVER | 1,200 | — | — | Compliant |
| OAK CREST FARMS PUMP DISTRICT DE00A0753 | DOVER | 1,188 | — | — | Compliant |
| FELTON DISTRICT DE0000469 | DOVER | 1,143 | — | — | Compliant |
| LOCHWOOD DE00A0370 | DOVER | 1,023 | — | — | Compliant |
| WILD QUAIL PUMP DISTRICT DE00A0159 | DOVER | 1,017 | — | — | Compliant |
| FRANKFORD WATER DEPARTMENT (AWC) DE0000242 | NEWARK | 1,014 | — | — | Compliant |
| COLONIAL EAST DE0000256 | ODESSA | 1,011 | — | — | Compliant |
| SUNLAKE TERRACE WATER SYSTEMS FL6534886 | WILMINGTON | 1,000 | — | — | Compliant |
| GREENWOOD WATER DEPARTMENT DE0000558 | GREENWOOD | 973 | — | — | Compliant |
| EAGLE MEADOWS DE0000474 | DOVER AFB | 967 | — | — | Compliant |
| WICKSFIELD (AWC) DE0020001 | NEWARK | 963 | — | — | Compliant |
| PINE HILLS MD0070019 | NEWARK | 953 | — | — | Compliant |
| FREDERICA WATER DEPARTMENT DE0000587 | FREDERICA | 950 | — | — | Compliant |
| SOUTH EAST PUMP DISTRICT DE00A0376 | DOVER | 936 | — | — | Compliant |
| DAGSBORO WATER DEPT DE00A0799 | DAGSBORO | 934 | — | — | Compliant |
| CHESTNUT GROVE (WILLOW GROVE) DE00A0372 | NEWARK | 933 | — | — | Compliant |
| LAUREL VILLAGE MHC DE0000265 | LAUREL | 918 | — | — | Compliant |
| DOVE RUN DE0020124 | MIDDLETOWN | 909 | — | — | Compliant |
| BAYWOOD GREENS DE00A0425 | LONG NECK | 909 | — | — | Compliant |
| REHOBOTH BAY MOBILE HOME PARK DE0001645 | REHOBOTH | 900 | — | — | Compliant |
| FREDERICA PUMP DISTRICT DE0020007 | DOVER | 861 | — | — | Compliant |
| VILLAGEBROOK DE0020141 | BEAR | 847 | — | — | Compliant |
| SLAUGHTER BEACH PWS DE0002618 | NEWARK | 846 | — | — | Compliant |
| HOLLY HILL ESTATES DE0000939 | SMYRNA | 831 | — | — | Compliant |
| LAUREL VILLAGE MOBILE HOME PARK DE0001265 | LAUREL | 800 | — | — | Compliant |
| CLEARBROOKE ESTATES PUMP DISTRICT DE00A0326 | DOVER | 768 | — | — | Compliant |
| BEAVER CREEK DE00A0847 | NEWARK | 750 | — | — | Compliant |
| WINTERSET FARMS TRAILER PARK DE0000665 | WILMINGTON | 750 | — | — | Compliant |
| STOCKLEY CENTER DE0000276 | NEWARK | 749 | — | — | Compliant |
| PORT DEPOSIT MD0070020 | NEWARK | 725 | — | — | Compliant |
| NORTHWEST EXTENSION DISTRICT DE00A0351 | ODESSA | 723 | — | — | Compliant |
| REHOBOTH BEACH YACHT & COUNTRY CLUB DE0000247 | ODESSA | 708 | — | — | Compliant |
| WOODFIELD DE00A0643 | DOVER | 702 | — | — | Compliant |
| MISTY VALE-VANDERGRIFT MANOR DE0000334 | PORT PENN | 700 | — | — | Compliant |
| LAKELAND MOBILE HOME PARK I DE0001546 | WILMINGTON | 700 | — | — | Compliant |
| HIGH POINT ASSOCIATES DE0000589 | FREDERICA | 700 | — | — | Compliant |
| CHIMNEY HILL DE00A0530 | DOVER | 690 | — | — | Compliant |
| WINTERTHUR DE0000503 | WINTERTHUR | 687 | — | — | Compliant |
| HUNTERS RUN DE0020139 | BEAR | 683 | — | — | Compliant |
| SEAGLASS AT REHOBOTH BEACH DE0020117 | REHOBOTH BEACH | 674 | — | — | Compliant |
| GLADE, THE DE00A0337 | DOVER | 657 | — | — | Compliant |
| HOME TOWN VILLAGE OF COOL BRANCH DE00A0377 | SEAFORD | 654 | — | — | Compliant |
| SUSSEX CORRECTIONAL INSTITUTION DE0000278 | GEORGETOWN | 650 | — | — | Compliant |
| GRANTS WAY PUMP DISTRICT (TUI) DE00A0522 | DOVER | 639 | — | — | Compliant |
| VALLEY RUN WATER SYSTEM PA3060135 | GEORGETOWN | 626 | — | — | Compliant |
| AUGUSTINE CREEK DE00A0232 | NEWARK | 621 | — | — | Compliant |
| OAK MEADOWS-PWSC DE0000524 | MILLSBORO | 610 | — | — | Compliant |
| CHAPEL GREEN DE00A0389 | ODESSA | 606 | — | — | Compliant |
| CEDAR VILLAGE LLC DE0000254 | REHOBOTH BEACH | 600 | — | — | Compliant |
| CAPE WINDSOR COMMUNITY ASSOCIATION INC DE0000439 | SELBYVILLE | 600 | — | — | Compliant |
| SOUTHWOOD ACRES PUMP DISTRICT DE0000613 | DOVER | 591 | — | — | Compliant |
| SUSSEX EAST DE0000062 | ODESSA | 567 | — | — | Compliant |
| BRIDGEVILLE MALL (TUI) DE0000155 | DOVER | 550 | — | — | Compliant |
| JONATHANS LANDING DE0000398 | DOVER | 549 | — | — | Compliant |
| HIGH POINT ASSOCIATES (WELL #4) DE0004589 | FREDERICA | 546 | — | — | Compliant |
| TALL PINES RESORT COMMUNITY SYS1 DE0001605 | LEWES | 538 | — | — | Compliant |
| DEER MEADOWS DE00A0787 | NEWARK | 534 | — | — | Compliant |
| BAYSHORE MOBILE HOME PARK DE0000252 | OCEAN VIEW | 533 | — | — | Compliant |
| HENLOPEN ACRES, TOWN OF DE0000251 | REHOBOTH | 522 | — | — | Compliant |
| FOX POINTE SUBDIVISION DE00A0696 | SMYRNA | 500 | — | — | Compliant |
| BARKERS LANDING DE00A0440 | MAGNOLIA | 498 | — | — | Compliant |
| INGRAM VILLAGE (AWC) DE0020052 | NEWARK | 498 | — | — | Compliant |
| CLAYTON SYSTEM 2 DE0002565 | CLAYTON | 480 | — | — | Compliant |
| CANTERBURY CROSSING PUMP DISTRICT DE00A0348 | DOVER | 471 | — | — | Compliant |
| KENTON PUMP DISTRICT DE00A0868 | DOVER | 465 | — | — | Compliant |
| LAKELAND/BEECHWOOD PUMP DISTRICT DE0000546 | DOVER | 459 | — | — | Compliant |
| STOCKLEY MEDICAL CTR (MARYANN COVERDALE) DE0020019 | GEORGETOWN | 454 | — | — | Compliant |
| PRIMEHOOK WATER COMPANY DE0000617 | MILFORD | 441 | — | — | Compliant |
| SWEET BRIAR PUMP DISTRICT DE0000273 | DOVER | 441 | — | — | Compliant |
| HARBOR VIEW MD0070025 | NEWARK | 437 | — | — | Compliant |
| HUNTER MILL ESTATES PUMP DISTRICT DE0000220 | DOVER | 432 | — | — | Compliant |
| PARKWOOD ESTATES FL6295191 | WILMINGTON | 430 | — | — | Compliant |
| COUNTRY GROVE DE0020020 | DOVER | 426 | — | — | Compliant |
| COUNTRY HOUSE DE0000015 | WILMINGTON | 425 | — | — | Compliant |
| MAGNOLIA WATER DEPARTMENT DE0000610 | MAGNOLIA | 425 | — | — | Compliant |
| WEATHERSTONE CROSSING DE0020024 | NEWARK | 423 | — | — | Compliant |
| THE MEADOWS DE0000179 | MILLSBORO | 420 | — | — | Compliant |
| PEPPER CREEK DISTRICT (TUI) DE0020021 | DOVER | 414 | — | — | Compliant |
| SOUTH SHORES (TUI) DE00A0404 | DOVER | 402 | — | — | Compliant |
| CARPENTERS POINT WATER CO. MD0070003 | NEWARK | 400 | — | — | Compliant |
| LAKELAND MOBILE HOME PARK II DE0002546 | WILMINGTON | 399 | — | — | Compliant |
| SILVER VIEW FARM DE0000641 | REHOBOTH | 398 | — | — | Compliant |
| SAND HILL ACRES DE0000115 | LAUREL | 384 | — | — | Compliant |
| LAKE HAVEN MOBILE HOME PARK MD0230206 | SEAFORD | 384 | — | — | Compliant |
| KINGSMILL DE0020140 | BEAR | 381 | — | — | Compliant |
| REHOBOTH BAY MOBILE HOME PARK (SYSTEM 2) DE0002645 | REHOBOTH | 375 | — | — | Compliant |
| SHADY ACRES MHP-ATN TERRY ROCK DE0001600 | LAUREL | 369 | — | — | Compliant |
| FRIENDSHIP CREEK DE0020119 | NEWARK | 366 | — | — | Compliant |
| ST ANDREWS APARTMENTS DE0020144 | BEAR | 360 | — | — | Compliant |
| CEDAR LANDING DE00A0424 | NEWARK | 357 | — | — | Compliant |
| GREATER ELLENDALE WATER DISTRICT DE0020112 | FRANKFORD | 350 | — | — | Compliant |
| KINGS CLIFFE MOBILE PARK DE0000578 | DOVER | 346 | — | — | Compliant |
| LONG NECK VILLAGE DE00A0188 | MILLSBORO | 345 | — | — | Compliant |
| SHAWNS HIDEAWAY SYSTEM #1 DE0001646 | MILLSBORO | 341 | — | — | Compliant |
| DRAGON RUN TERRACE TRAILER PK DE0000631 | BEAR | 340 | — | — | Compliant |
| ASCOT LANDING SUBDIVISION DE0020148 | BEAR | 338 | — | — | Compliant |
| THE VINES OF SANDHILL (AWC) DE0020099 | NEWARK | 336 | — | — | Compliant |
| STONEWATER CREEK DE00A0830 | NEWARK | 330 | — | — | Compliant |
| MASSEY'S LANDING SYS 1 DE0001243 | GEORGETOWN | 330 | — | — | Compliant |
| FOREST GROVE PUMP DISTRICT DE0000960 | DOVER | 330 | — | — | Compliant |
| WHISPERING PINES MOBILE HOME PARK MD0070213 | NEW CASTLE | 325 | — | — | Compliant |
| OCEAN FARMS DE00A0322 | ODESSA | 324 | — | — | Compliant |
| NEW MARKET VILLAGE DE0000269 | LAUREL | 321 | — | — | Compliant |
| CAREY ESTATES, LLC DE0000521 | REHOBOTH BEACH | 312 | — | — | Compliant |
| RIDGEWOOD MANOR C/O RHP PROPERTIES DE0000065 | SMYRNA | 310 | — | — | Compliant |
| VIOLA DISTRICT DE00A0401 | DOVER | 306 | — | — | Compliant |
| AVALON WOODS OWNERS ASSOC INC DE0000885 | GEORGETOWN | 306 | — | — | Compliant |
| KITTS HUMMOCK IMPROVEMENT ASSOC DE0000545 | DOVER | 305 | — | — | Compliant |
| SHADY PARK SYSTEM 3 DE0003403 | SELBYVILLE | 303 | — | — | Compliant |
| ASBURY CHASE DE00A0374 | DOVER | 303 | — | — | Compliant |
| MIDWAY ESTATES DE0000463 | MIDWAY | 300 | — | — | Compliant |
| CANTERBURY CROSSING DE0000348 | CANTERBURY | 300 | — | — | Compliant |
| FLYING DUTCHMAN TRAILER PARK DE0000581 | FELTON | 300 | — | — | Compliant |
| INDIAN RIVER ACRES PUMP DISTRICT DE0000227 | DOVER | 300 | — | — | Compliant |
| COUNTY SEAT GARDENS DE0000901 | GEORGETOWN | 297 | — | — | Compliant |
| NEW MARKET VILLAGE SYSTEM 1 DE0001269 | LAUREL | 291 | — | — | Compliant |
| SYCAMORE CHASE (AWC) DE0020121 | NEWARK | 291 | — | — | Compliant |
| CECIL WOODS MOBILE HOME PARK WTP MD0070244 | NEWARK | 285 | — | — | Compliant |
| HOLLAND MILLS DE0020035 | NEWARK | 282 | — | — | Compliant |
| FAIRWINDS MOBILE HOME PARK DE0000554 | BEAR | 280 | — | — | Compliant |
| MCNICOL PLACE MOBILE HOME PARK DE0000286 | DOVER | 276 | — | — | Compliant |
| ST ANDREWS APARTMENT NEW ADDITION DE0020137 | BEAR | 272 | — | — | Compliant |
| POINT FARM DE00A0379 | DOVER | 270 | — | — | Compliant |
| CAMELOT MOBILE HOME PARK DE0000640 | REHOBOTH BEACH | 270 | — | — | Compliant |
| HUNTERS POINTE PUMP DISTRICT DE0000104 | DOVER | 261 | — | — | Compliant |
| EVERGREEN POST ACUTE DE0000841 | SMYRNA | 256 | — | — | Compliant |
| COUNTRY LIVING MOBILE COURT DE0000623 | MILLSBORO | 255 | — | — | Compliant |
| ORCHARD, THE DE00A0383 | DOVER | 252 | — | — | Compliant |
| DOVER AIR PARK DE0000573 | DOVER | 252 | — | — | Compliant |
| VOSHELLS COVE PUMP DISTRICT DE0000125 | DOVER | 252 | — | — | Compliant |
| SLAUGHTER BEACH WATER COMPANY DE0000618 | MILFORD | 250 | — | — | Compliant |
| COOPER FARM PUMP DISTRICT DE0000118 | DOVER | 249 | — | — | Compliant |
| SANDY RIDGE PUMP DISTRICT DE00A0699 | DOVER | 243 | — | — | Compliant |
| GLASGOW PINES II DE0020138 | BEAR | 235 | — | — | Compliant |
| MILLWOOD DE00A0677 | NEWARK | 234 | — | — | Compliant |
| BEACHFIELD - TIDEWATER UTILITY DE0000249 | WILMINGTON | 232 | — | — | Compliant |
| HIGH POINT ASSOCIATES (WELL #3) DE0003589 | FREDERICA | 225 | — | — | Compliant |
| WHISPERING PINES MOBILE HOME PARK DE0000551 | DOVER | 222 | — | — | Compliant |
| PINE RIDGE MOBILE HOME PARK DE0000270 | SEAFORD | 222 | — | — | Compliant |
| MERIDIAN CROSSING APARTMENTS DE0020149 | BEAR | 220 | — | — | Compliant |
| COUNTRY LIVING MOB COURT-SYS 2 DE0002623 | MILLSBORO | 219 | — | — | Compliant |
| PONDS OF ODESSA (AWC) DE0020088 | NEWARK | 216 | — | — | Compliant |
| BAYVIEW IMPROVEMENT COMPANY (AWC) DE0000553 | NEWARK | 214 | — | — | Compliant |
| GREEN ACRES PUMP DISTRICT DE00A0327 | DOVER | 213 | — | — | Compliant |
| LOVE CREEK MHC DE0000606 | LAUREL | 210 | — | — | Compliant |
| HOLIDAY PINES DE0000263 | LEWES | 210 | — | — | Compliant |
| PEPPER RIDGE PARK DE0000464 | SELBYVILLE | 209 | — | — | Compliant |
| FREDERICK LODGE PUMP DISTRICT DE0000007 | DOVER | 204 | — | — | Compliant |
| CEDAR CREEK ESTATES DE0000240 | MILFORD | 204 | — | — | Compliant |
| MEADOWS AT CUBBAGE POND DE00A0212 | DOVER | 201 | — | — | Compliant |
| SHADY PARK SYSTEM 1 DE0001403 | SELBYVILLE | 201 | — | — | Compliant |
| LOVE CREEK WOODS PUMP DISTRICT DE00A0329 | DOVER | 198 | — | — | Compliant |
| TODD'S MOBILE HOME COURT DE0000850 | SEAFORD | 195 | — | — | Compliant |
| HIGH POINT ASSOCIATES # 2 DE0002589 | FREDERICA | 195 | — | — | Compliant |
| COUNTRY CLUB VILLAGE (TUI) DE00A0679 | DOVER | 192 | — | — | Compliant |
| RIVER BREEZE DE0000127 | MILLSBORO | 192 | — | — | Compliant |
| DRAWYERS CREEK PUMP DISTRICT DE00A0353 | DOVER | 192 | — | — | Compliant |
| TIDEWATER UTILITIES ROYAL GRAN DE0000120 | WILMINGTON | 192 | — | — | Compliant |
| TODDS MOBILE COURT DE0000253 | SEAFORD | 189 | — | — | Compliant |
| BRIARWOOD (INACTIVE) DE00A0344 | ODESSA | 180 | — | — | Compliant |
| GOSLING CREEK PURCHACE DE00A0388 | DOVER | 180 | — | — | Compliant |
| SUMMIT POND PUMP DISTRICT DE0000140 | DOVER | 177 | — | — | Compliant |
| WOODLANDS OF MILLSBORO PUMP DISTRICT DE00A0279 | DOVER | 171 | — | — | Compliant |
| MISTY PINES PUMP DISTRICT DE00A0420 | DOVER | 168 | — | — | Compliant |
| COLONIAL ESTATES MOBILE HOME PARK DE0000267 | LAUREL | 165 | — | — | Compliant |
| PWSC-DRIFTWOOD VILLAGE DE0000881 | MILLSBORO | 165 | — | — | Compliant |
| COMMODORE ESTATES DE00A0682 | NEWARK | 162 | — | — | Compliant |
| ANGOLA CREST II DE0000999 | LEWES | 159 | — | — | Compliant |
| SHAWNS HIDEAWAY SYSTEM #2 DE0002646 | MILLSBORO | 156 | — | — | Compliant |
| DELAWARE MOBILE HOME COURT DE0000006 | NEWARK | 156 | — | — | Compliant |
| SHADY ACRES MOBILE HOME PARK DE0000600 | LAUREL | 152 | — | — | Compliant |
| CLEAR WATER DE00A0331 | ODESSA | 150 | — | — | Compliant |
| OAK GROVE ESTATES DE0000548 | DOVER | 150 | — | — | Compliant |
| SUMMIT BRIDGE PARK DE0000633 | GLASGO | 150 | — | — | Compliant |
| QUILLENS POINT DE0000924 | OCEAN VIEW | 150 | — | — | Compliant |
| ASPEN MEADOWS DE0000948 | ODESSA | 150 | — | — | Compliant |
| SOUTH ASHMERE WATER ASSOCIATION INC MA1132002 | HOCKESSIN | 150 | — | — | Compliant |
| LAUREL VILLAGE MOBILE HOME PARK (#2) DE0002265 | LEWES | 150 | — | — | Compliant |
| NEW MARKET VILLAGE SYS 2 DE0002269 | LAUREL | 150 | — | — | Compliant |
| ST JONES LANDING DE0000612 | DOVER | 144 | — | — | Compliant |
| SEA WINDS PUMP DISTRICT DE00A0516 | DOVER | 141 | — | — | Compliant |
| TWIN CEDAR APARTMENTS DE0000038 | SELBYVILLE | 141 | — | — | Compliant |
| PINE VALLEY MOBILE HOME PARK DE0000644 | REHOBOTH BEACH | 141 | — | — | Compliant |
| BAY VISTA DE0000044 | WILMINGTON | 140 | — | — | Compliant |
| GRANADA MOBILE HOME COURT DE0000611 | MAGNOLIA | 138 | — | — | Compliant |
| DOVER MEADOWS PUMP DISTRICT DE00A0767 | DOVER | 135 | — | — | Compliant |
| LEISURE POINT MOBILE HOME PARK DE0000620 | MILLSBORO | 135 | — | — | Compliant |
| HOLIDAY ACRES, LLC DE0000523 | REHOBOTH | 132 | — | — | Compliant |
| FISHERMANS VILLAGE (TUI) DE0000309 | DOVER | 129 | — | — | Compliant |
| FAIRWAY VILLAGE(TIDEWATER UTL) DE0000894 | WILMINGTON | 128 | — | — | Compliant |
| PARADISE ESTATES DE00A1745 | NEWARK | 126 | — | — | Compliant |
| PONDS OF WILLOW GROVE DE0020022 | DOVER | 126 | — | — | Compliant |
| BAY CITY DE0000627 | LONG NECK | 125 | — | — | Compliant |
| TWIN MAPLES TRAILER PARK DE0000596 | KENTON | 123 | — | — | Compliant |
| LONG FARM ESTATES PUMP DISTRICT DE00A0411 | DOVER | 123 | — | — | Compliant |
| WILLOW TREE PROPERTIES LLC DE0000134 | DOVER | 123 | — | — | Compliant |
| MAPLE SQUARE M.H.P. INC. DE0000632 | NEWARK | 120 | — | — | Compliant |
| LEISURE HAVEN MOBILE HOME PARK DE0000131 | CAMDEN | 120 | — | — | Compliant |
| ST ANDREWS SINGLE FAMILY HOMES DE0020143 | BEAR | 120 | — | — | Compliant |
| DERBY LABOR CAMP DE0000188 | MAGNOLIA | 120 | — | — | Compliant |
| TAMARAC INC DE0000117 | ODESSA | 120 | — | — | Compliant |
| NAUTICAL COVE DE0000351 | MT. PLEASANT | 120 | — | — | Compliant |
| APOQUIN FARMS DE0000376 | MIDDLETOWN | 120 | — | — | Compliant |
| DRAWYERS CREEK DE0000353 | ODESSA | 120 | — | — | Compliant |
| WILLOW LAKE PUMP DISTRICT DE00A0757 | DOVER | 120 | — | — | Compliant |
| UP COUNTRY TRAILER PARK DE0000437 | SEAFORD | 120 | — | — | Compliant |
| SAND HILL MOBILE HOME PARK DE0000982 | REHOBOTH | 120 | — | — | Compliant |
| GULL POINT DE0000990 | OAK ORCHARD | 120 | — | — | Compliant |
| MT PLEASANT MHP, LLC DE0000008 | BEAR | 117 | — | — | Compliant |
| TEAL POINT (TUI) DE00A0321 | DOVER | 117 | — | — | Compliant |
| BETHANY CREST LLC DE0000628 | CLARKSVILLE | 115 | — | — | Compliant |
| GREENTOP DE0000030 | LINCOLN | 112 | — | — | Compliant |
| MARINERS COVE DE0000257 | MILLSBORO | 111 | — | — | Compliant |
| BLUE HERON ESTATES DE00A0680 | DOVER | 111 | — | — | Compliant |
| SERENITY MANOR ESTATES DE0000121 | WYOMING | 110 | — | — | Compliant |
| SHADY OAK TRAILER COURT DE0000272 | GEORGETOWN | 108 | — | — | Compliant |
| CANTWELL WATER COMPANY DE0000638 | MIDDLETOWN | 108 | — | — | Compliant |
| VILLAGE OF GRANDVIEW DE0000572 | DOVER | 108 | — | — | Compliant |
| GRANDVIEW TRAILER PARK DE0001572 | DOVER | 107 | — | — | Compliant |
| WEBBS LANDING PUMP DISTRICT DE00A0369 | DOVER | 105 | — | — | Compliant |
| CAPTAIN'S WAY DE0020111 | LEWES | 102 | — | — | Compliant |
| WEST BAY DE0000647 | DOVER | 100 | — | — | Compliant |
| BOWERSET DE0000160 | MILLVILLE | 100 | — | — | Compliant |
| GREENWOOD LIFE COMMUNITY DE0020120 | GREENWOOD | 100 | — | — | Compliant |
| ROUTE 7 DISTRIBUTION SYSTEM MD0070032 | NEWARK | 100 | — | — | Compliant |
| HOLLY LAKE MOBILE PARK DE0000925 | LEWES | 99 | — | — | Compliant |
| MESSICK'S MHC LLC SYSTEM 5 DE0020065 | HARRINGTON | 97 | — | — | Compliant |
| TIMMONS-EVANS MOBILE HOME PARK DE0000274 | LEWES | 96 | — | — | Compliant |
| WHEATLAND DE0000190 | MOUNT PLEASANT | 96 | — | — | Compliant |
| SILVER VIEW FARM DE0001641 | REHOBOTH | 96 | — | — | Compliant |
| PARK VIEW MOBILE MANOR DE0000550 | DOVER | 96 | — | — | Compliant |
| ARTESIAN WATER PA INC PA1150002 | NEWARK | 95 | — | — | Compliant |
| STAGE VILLAGE MHC DE0000569 | DAGSBORO | 93 | 7.6 | 8.5 | Exceeds |
| DENTON MILLS DE0000077 | ODESSA | 90 | — | — | Compliant |
| CAPITOL NURSING & REHABILITATION CENTER DE0000135 | DOVER | 90 | — | — | Compliant |
| B AND B TRAILER PARK #I DE0000648 | SEAFORD | 90 | — | — | Compliant |
| DALTON'S MOBILE HOMES DE0000555 | BEAR | 90 | — | — | Compliant |
| THE LANDINGS AT DUCK CREEK DE0000659 | CAMDEN | 90 | — | — | Compliant |
| HARTLY MOBILE HOME PARK DE0000468 | CAMDEN-WYOMING | 90 | — | — | Compliant |
| COUNTRY GLEN DE0000041 | BRIDGEVILLE | 90 | — | — | Compliant |
| INGRAMS POINT (AWC) DE0020103 | NEWARK | 87 | — | — | Compliant |
| J & J MHP DE0000133 | SMYRNA | 84 | — | — | Compliant |
| CHESTNUT POINT ESTATES WTP MD0070240 | NEWARK | 82 | — | — | Compliant |
| FLYING DUTCHMAN MOBILE HOME PARK 3 DE0003581 | FELTON | 81 | — | — | Compliant |
| DALTONS MOBILE HOMES (SYSTEM 1) DE0001555 | BEAR | 81 | — | — | Compliant |
| CLARK MOBILE COURT DE0000255 | GREENWOOD | 81 | — | — | Compliant |
| SAVANNAH PLACE HOMEOWNERS ASSOC DE0000060 | LEWES | 81 | — | — | Compliant |
| LAUREL PUMP DISTRICT DE00A0575 | DOVER | 81 | — | — | Compliant |
| WHITES CREEK MANOR DE0000932 | MILLSBORO | 80 | — | — | Compliant |
| CHERRY CREEK VALLEY DE0000608 | REHOBOTH BEACH | 78 | — | — | Compliant |
| BLANTON'S MANUFACTURED HOME COMMUNITY DE0000987 | FELTON | 75 | — | — | Compliant |
| PINE CREST TERRACE DE0000075 | MILLVILLE | 75 | — | — | Compliant |
| CRESTFIELD WATER COMPANY DE0000664 | WILMINGTON | 75 | — | — | Compliant |
| FISH HOOK MOBILE HOME PARK DE0000260 | GEORGETOWN | 72 | — | — | Compliant |
| LEISURE HAVEN MOBILE HOME PARK (#2) DE0002131 | CAMDEN | 72 | — | — | Compliant |
| LINGO ESTATES DE0000239 | REHOBOTH BEACH | 72 | — | — | Compliant |
| MESSICK'S MHC LLC SYSTEM 4 DE0020064 | HARRINGTON | 72 | — | — | Compliant |
| PEPPERTOWN DE0000927 | SELBYVILLE | 70 | — | — | Compliant |
| MASONIC HOME OF DELAWARE INC. DE0000014 | WILMINGTON | 70 | — | — | Compliant |
| MASSEYS LANDING DE0000243 | MILLSBORO | 69 | — | — | Compliant |
| FORT DUPONT DE0000013 | NEWARK | 69 | — | — | Compliant |
| LEISURE HAVEN MOBILE HOME PARK (#1) DE0001131 | CAMDEN | 69 | — | — | Compliant |
| LANTERN LANE MOBILE VILLA DE0000636 | SELBYVILLE | 66 | — | — | Compliant |
| COUNTRYSIDE HAMLET DE0000817 | MILLSBORO | 66 | — | — | Compliant |
| COUNTRY REST HOME DE0000275 | GREENWOOD | 65 | — | — | Compliant |
| CEA DAG APARTMENTS DE00A0345 | DAGSBORO | 65 | — | — | Compliant |
| TIMBER ACRES MOBILE HOME PARK DE0000882 | MILLSBORO | 63 | — | — | Compliant |
| ASBURY CHASE DE0000374 | MT. PLEASANT | 63 | — | — | Compliant |
| VANESSA TRAILER COURT DE0000562 | CAMDEN | 63 | — | — | Compliant |
| MESSICK'S MHC LLC SYSTEM 6 DE0020066 | HARRINGTON | 63 | — | — | Compliant |
| DALTONS MOBILE HOMES DE0002555 | BEAR | 63 | — | — | Compliant |
| LAUREL VILLAGE M.H.P. - SYS. III DE0003265 | LAUREL | 60 | — | — | Compliant |
| CHESTNUT GROVE DE0000372 | MT. PLEASANT | 60 | — | — | Compliant |
| WINDING RIDGE DE0000330 | ODESSA | 60 | — | — | Compliant |
| PLEASANT ACRES, LLC DE0000430 | MILLSBORO | 60 | — | — | Compliant |
| FLYING DUTCHMAN MOBILE HOME PARK 2 DE0002581 | FELTON | 60 | — | — | Compliant |
| CARPENTERS ROW DE0000399 | HOCKESSIN | 60 | — | — | Compliant |
| M AND S RENTALS DE0000920 | FELTON | 60 | — | — | Compliant |
| MARANATHA COURT DE0000574 | SMYRNA | 54 | — | — | Compliant |
| TALL PINES RESORT COMMUNITY SYS2 DE0002605 | LEWES | 53 | — | — | Compliant |
| COUNTRY LIVING MOB COURT-SYS 1 DE0001623 | MILLSBORO | 51 | — | — | Compliant |
| VINES CREEK MOBILE HOME PARK DE00A0325 | OCEAN VIEW | 51 | — | — | Compliant |
| COMA TRAILER COURT DE0000658 | SMYRNA | 50 | — | — | Compliant |
| COUNTRYSIDE ESTATES DE0000129 | SMYRNA | 50 | — | — | Compliant |
| ARTESIANS - BARKERS LANDING DE00A0480 | NEWARK | 50 | — | — | Compliant |
| LAW MOBILE HOME PARK DE0000561 | CAMDEN | 50 | — | — | Compliant |
| GREENWOOD COUNTRY RETIREMENT DE0002275 | GREENWOOD | 50 | — | — | Compliant |
| COTTAGES ON WHITE CREEK DE0000186 | OCEAN VIEW | 50 | — | — | Compliant |
| WHALEY'S MOBILE HOME PARK DE0000930 | DOVER | 50 | — | — | Compliant |
| SHADY NOOK TRAILER PARK DE0000607 | LEWES | 48 | — | — | Compliant |
| BRUMBLEY'S FAMILY PARK DE00A0697 | MILTON | 48 | — | — | Compliant |
| SHADY ACRES ASSOC LP SYS 2 DE0002600 | BLADES | 45 | — | — | Compliant |
| MESSICK'S MHC LLC SYSTEM 3 DE0020063 | HARRINGTON | 45 | — | — | Compliant |
| HUNTERS RIDGE DE00A0676 | NEWARK | 45 | — | — | Compliant |
| WILD QUAIL GOLF & C.C. DE0000159 | WYOMING | 45 | — | — | Compliant |
| WOODS EDGE MOBILE HOME PARK DE0000549 | KENTON | 45 | — | — | Compliant |