A. If the preliminary soils report indicates the presence of critically expansive soils or other soils problems which, if not corrected, would lead to structural defect, a soils investigation of each lot in the subdivision may be required.
B. Such soils investigation shall be done by a soils engineer registered in this state, who shall recommend the corrective action which is likely to prevent structural damage to each structure proposed to be constructed in the area where such soils problem exists. Each report shall be kept on file for public inspection by the city.