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2860 Walnut Avenue, Signal Hill CA 90755 * Tel: (562) 426 -7990 * Fax: (562) 426 -1842 <br /> <br /> <br /> <br />January 22, 2024 <br />Project No. 7160.23 <br />LOC Architects <br />3203 East 4th Street <br />Los Angeles, California 90063 <br /> <br />Attention: Poonam Sharma <br /> <br />Subject: REPORT OF GEOTECHNICAL INVESTIGATION AND FIELD INFILTRATION TESTING <br /> Proposed Community Hub Building at Santa Ana Zoo <br /> 1801 East Chestnut Avenue, Santa Ana, California <br /> <br />Ladies and Gentlemen: <br /> <br />Presented herewith is the Report of Geotechnical Investigation (the Soils Report) prepared by Associated <br />Soils Engineering, Inc. (ASE) for the proposed community hub building (the Building) in the Santa Ana Zoo, <br />located at 1801 East Chestnut Avenue in the City of Santa Ana, California. This work was conducted in <br />accordance with ASE's Proposal No. P23-041, dated March 17, 2024, which subsequently received your <br />authorization. <br /> <br />The subject geotechnical investigation was planned and performed based on the relevant project <br />information provided by your office, which included request for proposal, prepared by City of Santa Ana, <br />detailing the project scope of work. Also provided were plans entitled “Topographic Survey”, prepared by <br />kpff, dated September 29, 2023 and “Implementation Plan Summary” (3 sheets) prepared by CLR Design, <br />dated February 2018. The plans show the existing site layout and proposed future zoo developments, <br />respectively. <br /> <br />The purpose of this study was to evaluate the subsurface soils conditions at the Sites, followed by <br />assessment of site geologic/seismic hazards, performance of engineering analyses, and <br />formulation/assembly of recommendations for the geotechnical design and construction pertinent to the <br />Building. ASE's study has concluded that construction of the Building is geotechnically feasible provided that <br />the recommendations and criteria with respect to ground preparation and foundation construction <br />presented in the Soils Report are incorporated in the project plans and design and implemented during <br />construction. This Soils Report also presents 1) the findings of the geotechnical field investigation, 2) the <br />summary of potential geological/seismic hazard assessment, 3) the results of laboratory tests performed, <br />and 4) the measured results from on-site percolation testing and the calculated infiltration rates. <br />