1. County of Howard
12100 Woodford Dr, Marriottsville, MD 21104
Coordinate: 39.32179,-76.93425
Phone: (410) 313-5568
2. Howard County Landfill-Alpha Ridge Landfill
2350 Marriottsville Rd, Marriottsville, MD 21104
Coordinate: 39.3053,-76.90338
Phone: (410) 313-6444