1. Aqua Well Drilling 20378 Killdeer Ln, Callaway, MD 20620 Coordinate: 38.22729,-76.51729 Phone: (301) 994-3755
2. Watson And Johnson Well Drilling Inc PO Box 37, Callaway, MD 20620 Coordinate: 38.22752,-76.520966 Phone: (301) 994-1792