Preliminary soils report.
Riverside Municipal Code § 18.090.050
in effect18.090.050 - Preliminary soils report.
A. Filing report. Prior to the approval of any final map or parcel map, a preliminary soils report or waiver thereof shall be filed with and approved by the City Engineer.
B. Contents of report. The preliminary soils report shall be prepared by a civil engineer registered by the State, and shall indicate the presence, if any, of critically-expansive soils or of any other soil problems which, if not corrected, would lead to structural defects. If expansive or defective soils are indicated, the report shall recommend corrective measures to prevent structural damage to any building or structure proposed to be constructed on any expansive or defective soil.
C. Investigations. The preliminary soils report shall be based on investigations consisting of test borings or excavations. The number of investigations shall be adequate to determine fully the extent and degree of soil problems which exist on the site. If expansive or defective soils are present, investigations shall be required at the probable building location on each lot or parcel designated on the map.
D. Approval. The City Engineer shall approve the report if no critically-expansive soil or other soil problems are indicated, or if the recommended corrective measures will prevent structural damage to a building or structure to be constructed on any expansive or defective soil. The City Engineer may review the preliminary soils report and may require additional information or reject the report if it is found to be incomplete, inaccurate or unsatisfactory.
E. Building permit. No building permit shall be issued for the construction of any building or structure on a lot or parcel of land which has been found to contain defective soils unless the approved corrective measure is incorporated in the construction plans.
(Ord. 6968 §1, 2007)
Source: City of Riverside, California, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/ca/riverside/codes/code_of_ordinances?nodeId=PTIICOOR_TIT18SU_ARTIIIMAPE_CH18.090FITRPAMA_18.090.050PRSOREFetched: 11/1/2026