A. A preliminary soils report based upon adequate test borings, and a grading plan, shall be submitted to the city engineer for every subdivision prior to the filing of the final tract map or final parcel map. The city engineer may review the report and may require additional information or reject the report if it is found to be incomplete, inaccurate or unsatisfactory. Such soils report and grading plan shall be prepared by a civil 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 the soils problem exists.

B. If the soils report indicates the presence of critically expansive soils or other soils problems which, if not corrected, would lead to structural defects, a soils investigation of each lot or parcel in the subdivision may be required by the city engineer. Such soils investigation shall recommend the corrective action which is likely to prevent structural damage to each structure proposed to be constructed in the area where the soils problems exist.

C. If the preliminary soils report indicates the presence of rocks or liquids containing deleterious chemicals which, if not corrected, could cause construction materials such as concrete, steel and ductile or cast iron to corrode or deteriorate, a soils investigation of each potentially affected lot in the subdivision may be required.

D. The city may approve the subdivision or portion thereof where soils problems described in subsections B. and C. of this section exist if it is determined that the recommended action is likely to prevent structural damage to each structure to be constructed, and as a condition to the issuance of any building permit may require that the approved recommended action be incorporated in the construction of each structure. (Ord. 3515 § 1, 1993)