Water Well Drilling Contractors in Maryland

Geology & Depth

Maryland straddles the fall line between the Piedmont's crystalline metamorphic rock and the Coastal Plain's unconsolidated sands and clays. Western Maryland's Ridge and Valley province has folded sedimentary rock — sandstone and limestone — with wells tapping fault-controlled fracture zones.

Most residential wells in Maryland are drilled to 180 feet, with a typical range of 40–500 feet. Water table depth: 30-100 feet on the Coastal Plain; 80-300 feet in the Piedmont; 100-400 feet in western Maryland.

Permits & Licensing

Maryland requires water well drillers to be licensed by MDE. Separate pump installer licenses are required. Homeowner drilling is not allowed.

Permit authority: Maryland Department of the Environment (MDE) and county health departments jointly administer well permits. Expect $100-$400 in permit fees.

Primary Aquifer

Piedmont Crystalline Aquifer / Coastal Plain Aquifer System (Aquia, Magothy, Patapsco formations). About 22% of Maryland households use private wells, with the highest rates on the rural Eastern Shore and in western Maryland.

Best drilling months: March through November; mild winters allow some year-round drilling on the Eastern Shore and Coastal Plain.

Common Water Quality Concerns

Maryland well water commonly contains: iron, manganese, radon, arsenic, nitrate in agricultural areas of the Eastern Shore. A comprehensive water test after drilling (typically $150–$500) will identify which treatments, if any, your well needs.