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1.0 INTRODUCTION <br />1.1 Purpose and Scope of Services <br />The purpose of this supplemental investigation was to identify and evaluate the existing geologic and <br />geotechnical conditions at the site and provide preliminary geotechnical design criteria for the <br />proposed development. Recommendations for grading construction, preliminary foundation design <br />for the proposed structures, stormwater infiltration design and other relevant aspects of the proposed <br />development are included herein to address the identified site geotechnical conditions. This report <br />includes the results of our site exploration, laboratory testing, and engineering evaluation, and <br />provides our conclusions, opinions and recommendations with respect to site development. <br />These items plus other geotechnical conditions are discussed and addressed within this document. <br />Our scope of services for preparation of this document included: <br />Review of available geotechnical reports, geologic maps and other documents relevant to the site <br />(Appendix A). <br />• Perform a site visit to evaluate the existing conditions and mark the geotechnical boring locations. <br />A subsurface investigation including the excavation, sampling, and logging of three small -diameter <br />exploratory borings. The borings are labeled B-LGC-1 through B-LGC-3. Logs of the borings are <br />presented in Appendix B, and their approximate locations are depicted on the Boring Location Map <br />(Figure 2). All the excavations were sampled and logged under the supervision of a licensed <br />geologist from our firm. The borings were excavated to evaluate the general characteristics of the <br />subsurface conditions on the site including classification of site soils, determination of depth to <br />groundwater, and to obtain representative soil samples. <br />Laboratory testing of representative soil samples obtained during our subsurface investigation <br />(Appendix C). <br />• Perform geotechnical analyses and evaluation of the data. <br />• Preparation of this report presenting our findings, conclusions, opinions and recommendations with <br />respect to the evaluated geologic and geotechnical conditions at the site. <br />Project i y ouncil 18 — 815 1 3 , 2021 <br />