State rankings
Delaware water-system rankings
Lowest-scoring systems in Delaware
Ranked lowest score first. Population shown for context.
1 GEORGETOWN WATER DEPARTMENT GEORGETOWN, DE · ~7,259 served 1 2 STAGE VILLAGE MHC DAGSBORO, DE · ~93 served 37 3 NEWARK WATER DEPARTMENT NEWARK, DE · ~40,000 served 38 4 REHOBOTH BEACH WATER DEPARTMENT REHOBOTH BEACH, DE · ~25,000 served 42 5 SMYRNA WATER DEPARTMENT SMYRNA, DE · ~11,813 served 42 6 ARTESIAN WATER COMPANY NEWARK, DE · ~231,114 served 47 7 VEOLIA WATER DELAWARE, INC WILMINGTON, DE · ~100,495 served 62 8 LEWES BOARD OF PUBLIC WORKS LEWES, DE · ~9,627 served 66 9 DEWEY BEACH WATER DEPARTMENT FRANKFORD, DE · ~31,000 served 67 10 ARTESIAN NORTHERN SUSSEX REGIONAL NEWARK, DE · ~5,511 served 81 11 BETHANY BAY PUMP DISTRICT DOVER, DE · ~51,000 served 85 12 SUNLAKE TERRACE WATER SYSTEMS WILMINGTON, DE · ~1,000 served 85 13 WILMINGTON WATER DEPARTMENT WILMINGTON, DE · ~107,976 served 86 14 ARTESIAN SOUTHERN SUSSEX REGIONAL NEWARK, DE · ~18,215 served 88 15 REHOBOTH PUMP DISTRICT (TUI) DOVER, DE · ~81,417 served 90 16 DOVER WATER DEPARTMENT DOVER, DE · ~39,491 served 100 17 MIDDLETOWN WATER DEPARTMENT MIDDLETOWN, DE · ~17,700 served 100 18 CAMDEN PUMP DISTRICT DOVER, DE · ~17,208 served 100 19 GARRISON LAKE PUMP DISTRICT DOVER, DE · ~17,148 served 100 20 SUSSEX SHORES WATER COMPANY BETHANY BEACH, DE · ~12,450 served 100 21 BETHANY BEACH WATER DEPARTMENT BETHANY BEACH, DE · ~12,000 served 100 22 DOVER AIR FORCE BASE DOVER, DE · ~11,000 served 100 23 LONG NECK WATER COMPANY LONG NECK, DE · ~11,000 served 100 24 MILFORD WATER DEPARTMENT MILFORD, DE · ~9,800 served 100 25 CHURCH CREEK (AWC) NEWARK, DE · ~9,654 served 100
Highest-scoring large systems in Delaware
Systems serving 10,000+ people with the best scores.
1 DOVER WATER DEPARTMENT DOVER, DE · ~39,491 served 100 2 MIDDLETOWN WATER DEPARTMENT MIDDLETOWN, DE · ~17,700 served 100 3 CAMDEN PUMP DISTRICT DOVER, DE · ~17,208 served 100 4 GARRISON LAKE PUMP DISTRICT DOVER, DE · ~17,148 served 100 5 SUSSEX SHORES WATER COMPANY BETHANY BEACH, DE · ~12,450 served 100 6 BETHANY BEACH WATER DEPARTMENT BETHANY BEACH, DE · ~12,000 served 100 7 DOVER AIR FORCE BASE DOVER, DE · ~11,000 served 100 8 LONG NECK WATER COMPANY LONG NECK, DE · ~11,000 served 100
Scores reflect EPA public records (violations, enforcement, PFAS), are system-level, and can’t account for your home’s plumbing. See the methodology.