1. Chosen Valley Testing 328 Clough St, Waterloo, IA 50701 Coordinate: 42.48858,-92.36233 Phone: (319) 505-2774
2. Geotechnical Soil Engineers 2718 Falls Ave, Waterloo, IA 50701 Coordinate: 42.49995,-92.38131 Phone: (319) 505-2675