1. Earth Systems 1024 W Avenue M4, Palmdale, CA 93551 Coordinate: 34.642,-118.14864 Phone: (661) 948-7538
2. Bruin Geotechnical Services Inc 1817 E Avenue Q Ste A1, Palmdale, CA 93550 Coordinate: 34.58802,-118.09545 Phone: (661) 273-9078