Wicomico County, Maryland: drinking water report. Wicomico County sits on Maryland's Eastern Shore, with Salisbury as its county seat and largest city.
Wicomico County sits on Maryland's Eastern Shore, with Salisbury as its county seat and largest city. The area includes smaller communities like Fruitland, Delmar, and Mardela Springs. Most residents receive water from the City of Salisbury's municipal system, which draws from both surface water (Beaver Dam Creek, Parker Pond) and groundwater wells. Rural areas rely on private wells tapping into the Columbia aquifer, a major groundwater source across the Delmarva Peninsula.
Maryland's Eastern Shore faces distinct water quality pressures that reflect decades of agricultural land use combined with increasing development. The Columbia aquifer, which supplies much of Wicomico County's drinking water, shows vulnerability to nitrate contamination from fertilizer runoff and legacy septic systems. Testing across the region has documented elevated nitrate levels in private wells, particularly in agricultural zones where corn and poultry operations dominate the landscape. While public water systems treat for nitrates, private well owners bear sole responsibility for testing and treatment.
PFAS contamination represents an emerging concern throughout Maryland, though specific detection patterns vary by system. The EPA's recent testing requirements under UCMR5 have begun revealing PFAS presence in water systems across the state. These synthetic chemicals, used in firefighting foam and industrial processes, persist indefinitely in groundwater once introduced. Salisbury's proximity to former industrial sites and its regional airport raises typical concerns about potential PFAS sources, though the extent of any contamination depends on localized testing that may still be incomplete.
Lead and copper monitoring in municipal systems like Salisbury's generally shows compliance with federal action levels, but individual homes built before 1986 may still contain lead service lines or lead solder in plumbing. The Eastern Shore's naturally acidic groundwater can corrode pipes, potentially leaching lead even when source water contains none. Corrosion control treatment helps, but household plumbing remains the most common source of lead exposure. Private well owners face additional challenges with naturally occurring metals like manganese and iron, which appear frequently in Delmarla aquifer samples and require point-of-use filtration.
Municipal water customers should request recent water quality reports directly from their utility and ask specifically about PFAS testing results. Private well owners need annual testing at minimum, with focus on bacteria, nitrates, and metals that reflect Eastern Shore geology. Homes built before 1986 warrant lead testing regardless of water source, especially if occupants include children or pregnant women. Check your water for current contamination data in your area, review our water filter guide for treatment options suited to specific contaminants, access your detailed report for comprehensive local data, or visit the Maryland state page for broader context on drinking water challenges across the Eastern Shore.