1. Geosyntec Consultants 1331 Elmwood Ave, Columbia, SC 29201 Coordinate: 34.01502,-81.03638 Phone: (803) 726-1139
2. ATC Group Services 7499 Parklane Rd Suite 122, Columbia, SC 29223 Coordinate: 34.07929,-80.95738 Phone: (803) 735-0003