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In accordance with the requirements of the California Building Code 1803.1.1.2. This soils report has been prepared by a registered civil engineer for the proposed project, and recommends corrective action to prevent structural damage to each dwelling. The Following is a summary of our findings, conclusions and recommendations. Site Description and Proposed Development The subject property is located on the west side of Virlee St, in the City of Santa Ana east of Harbor Blvd and west of Newhope St. A one-story house with an attached garage exists at the site. Based on the Site Plan prepared by the designer, we understand that the proposed ADU will be located in the rear yard area. Note: The rear yard area where the proposed ADU will be located is currently covered with minor grass. Note to the geotechnical report reviewer: Please see the full-scale plans prepared by the architect/designer/civil engineer which are separately submitted to the City for review, for clarifications/details of the proposed development, as needed. The site is relatively flat; and we understand that the additional raw cut/fill is not proposed for the site. Geotechincal conditions Based on the published geologic map prepared by the California Division of Mines and Geology (CDMG), the site is located within a broad flat alluvium and colluvium area. One test hole has been drilled using a small diameter auger hand-operated drilling tool down to about 5 ft deep. The approximate location of our test hole is depicted on the attached Site Plan. The geotechnical log of the test hole is included in Appendix B. Expansion index and atterberg limits test were performed, and the laboratory test results are also included in Appendix B. Based on our filed observation and testing, the near-ground surface soils at the site generally consisted of silty fine sand, damp to moist and have a very low expansion potential. It is noted that the subject site is a previously graded lot which was previously approved by the City for construction of the existing house; and the subject approved lot is also surrounded by previously approved lots where houses exist. Distress to the on-site and off-site existing houses due to deep-seated settlement of the underlying earth materials was not observed and or reported. Therefore, deep-seated settlement is not anticipated to be a problem for the proposed new structures. Therefore, drilling deeper test hole(s) substantial sampling and consolidation testing for verification of potential deep-seated settlement are not considered necessary and not performed for this project. 906 S Virlee St & #2 - <br />10111904212/9/2024