Water Quality: Millsboro, DE
7 water systems • 9,660 people served
Multiple Health ViolationsWater Quality Summary
Millsboro is served by 7 public water systems with a combined service population of 9,660 people, and has 124 EPA Safe Drinking Water Act violations on record. Critically, 44 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Millsboro's violation count is 319% above the national average for Delaware. Contaminants associated with violations include Chlorine, Contaminant 1925, Gross Alpha, Selenium.
Contaminants Found
Eye and nose irritation at high levels; long-term exposure above the MCL may cause liver and kidney damage.
Common source: Water treatment disinfectant added to kill harmful microorganisms
EPA limit: 4.0 mg/L (MRDL — Maximum Residual Disinfectant Level)
Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.
Common source: Natural uranium and radium in geological formations
EPA limit: 15 pCi/L (excluding radon and uranium)
Hair loss, nail brittleness, and nervous system damage at elevated concentrations.
Common source: Natural geological deposits, mining discharges, oil refinery waste
EPA limit: 0.05 mg/L (50 ppb)
Water Systems Serving Millsboro
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| MILLSBORO WATER DEPARTMENT | DE0000622 | Groundwater | 8,568 | 10 |
| LONG NECK VILLAGE | DE00A0188 | Groundwater | 345 | 4 |
| SHAWNS HIDEAWAY SYSTEM #1 | DE0001646 | Groundwater | 341 | 0 |
| COUNTRY LIVING MOBILE COURT | DE0000623 | Groundwater | 255 | 2 |
| COUNTRYSIDE HAMLET | DE0000817 | Groundwater | 66 | 12 |
| PLEASANT ACRES, LLC | DE0000430 | Groundwater | 60 | 3 |
| FOREST PARK | DE0000590 | Groundwater | 25 | 93 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Delaware
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.