Delaware Water Quality
Health violation data for 209 community water systems in Delaware. Based on EPA Safe Drinking Water Information System (SDWIS) data.
Water Systems
209
Total Violations
158
Systems with Violations
50
Cities with Issues
20
Water Systems with Most Violations
| # | Water System | Violations | Health |
|---|---|---|---|
| 1 | FOREST PARK Millsboro | 36 | Yes |
| 2 | CHERRY CREEK VALLEY Rehoboth Beach | 13 | Yes |
| 3 | EVERGREEN POST ACUTE Smyrna | 11 | Yes |
| 4 | HOME TOWN VILLAGE OF COOL BRANCH Seaford | 8 | Yes |
| 5 | MILLSBORO WATER DEPARTMENT Millsboro | 6 | Yes |
| 6 | BETHANY CREST LLC Clarksville | 6 | Yes |
| 7 | SELBYVILLE WATER DEPARTMENT Selbyville | 5 | Yes |
| 8 | ARTESIAN WATER COMPANY Newark | 4 | Yes |
| 9 | REHOBOTH PUMP DISTRICT (TUI) Dover | 4 | Yes |
| 10 | TALL PINES RESORT COMMUNITY SYS1 Lewes | 4 | Yes |
| 11 | WHISPERING PINES MOBILE HOME PARK New Castle | 4 | Yes |
| 12 | FISH HOOK MOBILE HOME PARK Georgetown | 3 | Yes |
| 13 | LAUREL WATER DEPARTMENT Laurel | 3 | Yes |
| 14 | ARTESIAN SOUTHERN SUSSEX REGIONAL Newark | 3 | Yes |
| 15 | LAKE FOREST ESTATES Felton | 2 | Yes |
| 16 | BROADKILN BEACH WATER COMPANY (TUI) Dover | 2 | Yes |
| 17 | BAYSHORE MOBILE HOME PARK Ocean View | 2 | Yes |
| 18 | CEDAR VILLAGE LLC Rehoboth Beach | 2 | Yes |
| 19 | CAREY ESTATES, LLC Rehoboth Beach | 2 | Yes |
| 20 | GREENWOOD WATER DEPARTMENT Greenwood | 2 | Yes |
| 21 | DOVER WATER DEPARTMENT Dover | 2 | Yes |
| 22 | LEWES BOARD OF PUBLIC WORKS Lewes | 2 | Yes |
| 23 | COUNTRYSIDE HAMLET Millsboro | 2 | Yes |
| 24 | COUNTY SEAT GARDENS Georgetown | 2 | Yes |
| 25 | CHURCH CREEK (AWC) Newark | 2 | Yes |
| 26 | COUNTRY CLUB VILLAGE (TUI) Dover | 2 | Yes |
| 27 | BRIDGEVILLE MALL (TUI) Dover | 1 | Yes |
| 28 | SEAFORD WATER DEPARTMENT Seaford | 1 | Yes |
| 29 | COUNTRY REST HOME Greenwood | 1 | Yes |
| 30 | OAK GROVE ESTATES Dover | 1 | Yes |
| 31 | WOODS EDGE MOBILE HOME PARK Kenton | 1 | Yes |
| 32 | VILLAGE OF GRANDVIEW Dover | 1 | Yes |
| 33 | GEORGETOWN WATER DEPARTMENT Georgetown | 1 | Yes |
| 34 | TWIN MAPLES TRAILER PARK Kenton | 1 | Yes |
| 35 | MILFORD WATER DEPARTMENT Milford | 1 | Yes |
| 36 | NEWARK WATER DEPARTMENT Newark | 1 | Yes |
| 37 | REHOBOTH BAY COMMUNITY Rehoboth Beach | 1 | Yes |
| 38 | WILMINGTON WATER DEPARTMENT Wilmington | 1 | Yes |
| 39 | BLADES, TOWN OF Blades | 1 | Yes |
| 40 | AVALON WOODS OWNERS ASSOC INC Georgetown | 1 | Yes |
| 41 | ANGOLA CREST II Lewes | 1 | Yes |
| 42 | PONDS OF ODESSA (AWC) Newark | 1 | Yes |
| 43 | WOODLANDS OF MILLSBORO PUMP DISTRICT Dover | 1 | Yes |
| 44 | BARKERS LANDING Magnolia | 1 | Yes |
| 45 | LAUREL PUMP DISTRICT Dover | 1 | Yes |
| 46 | SUNLAKE TERRACE WATER SYSTEMS Wilmington | 1 | Yes |
| 47 | ELKTON WEST Newark | 1 | Yes |
| 48 | PORT DEPOSIT Newark | 1 | Yes |
| 49 | HARBOR VIEW Newark | 1 | Yes |
| 50 | LAKE HAVEN MOBILE HOME PARK Seaford | 1 | Yes |
Most Common Contaminants in Delaware
| Contaminant | Violations | Systems Affected |
|---|---|---|
| Nitrate | 72 | 10 |
| Contaminant 1925 | 23 | 12 |
| Lead & Copper Rule | 13 | 3 |
| E. coli | 10 | 7 |
| Mercury | 8 | 5 |
| Chlorine | 8 | 7 |
| Total Trihalomethanes (TTHM) | 6 | 2 |
| Combined Radium 226/228 | 5 | 2 |
| Chromium | 3 | 3 |
| Gross Alpha | 2 | 2 |
| Total Coliform (RTCR) | 2 | 1 |
| Selenium | 2 | 1 |
| Manganese | 1 | 1 |
| Atrazine | 1 | 1 |
| Turbidity | 1 | 1 |
Cities with Water Quality Issues
Explore More
About This Data
Water quality data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Only community water systems (CWS) in Delaware are included.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.