A soil report, based upon adequate test borings and excavations, prepared by a civil engineer specializing in soil mechanics and registered by the State of Utah, shall be required prior to preliminary approval of any Subdivision plat. If the soil report indicates the presence of critically expansive soils, high water table or other soil problems which, if not corrected, would lead to structural defects of the proposed Buildings, damage to the Buildings from the water or premature deterioration of the public improvements, a soil investigation of each Lot in the Subdivision may be required by the Public Works Department. The soil investigation shall recommend corrective action intended to prevent damage to the proposed Structure or public improvements. The fact that a soil report has been prepared shall be noted on the Final Plat and a copy attached to the Preliminary Plat application.