2039 N Victoria Drive #2 - Plan - Laserfiche WebLink

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24-8009 Page 3 INTRODUCTION Site Description and Proposed Project Development The subject site is located at 2039 North Victoria Drive (Site Location Map, Figure 1), within the City of Santa Ana, California. The property consists of a two-level single-family residence with a detached garage/pool house, currently under construction. The pool house and residence are outside of the scope of this report. The site currently has footings cut in the area of the proposed ADU. It is our understanding that an ADU is proposed in the southeast corner of the yard and a spa is proposed in the northeast corner, behind the garage/pool house. Based upon conversations on the site, it is our understanding that a pool was demolished and backfilled in the rear yard in the vicinity of the proposed ADU, the limits of which are unknown at this time. We have not been provided with a depth of the pool. It is our understanding that the pool had a diving board at the northeast end, therefore depths have been assumed to be as great as ten feet or deeper in the vicinity of the proposed ADU. Scope of Work The scope of work for this geotechnical investigation included the following: • Excavation of three (3) hand auger borings to the approximate maximum depth of 15.5 feet below the existing grade to evaluate the existing soil conditions at the subject site. • Laboratory testing of selected samples for in-situ moisture and density, maximum dry density and optimum moisture content, shear, consolidation, and sulfates. • Analysis of data, including site seismicity, foundation recommendations, and spa recommendations. • Preparing this report summarizing current subsurface soil conditions, findings, and presenting our recommendations for the proposed ADU and spa. Field Investigation Field exploration was performed on October 4, 2024 by a representative from our firm who logged the hand auger borings and obtained representative samples, which were subsequently transported to the laboratory for further review and testing. The approximate locations of the borings are indicated on the enclosed Boring Location Map (Plate 1). The subsurface conditions were explored by excavation, sampling, and logging three hand auger borings. B-1 was advanced to approximately 7 feet where it encountered refusal on concrete rubble; B-2 was advanced to approximately 15.5 feet below existing grade; and B-3 was advanced to a depth of approximately 10.5 feet below existing grade. Subsequent to excavation, all borings were backfilled with cuttings. The logs of borings presenting soil conditions and descriptions are given in Appendix B. Driven samples and bulk samples of the earth materials encountered at selected intervals were recovered from the borings. The locations and depths of the soil samples recovered are indicated on the logs in Appendix B. 2039 N Victoria Drive #24/28/2025