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330 Land Company, LLC Arroyo Lago <br />9785.004.001 Design-Level Geotechnical Report <br /> <br /> <br /> April 16, 2024 <br />Latest Revision October 31, 2025 <br />SELECTED REFERENCES <br /> <br />American Concrete Institute. 2005. Building Code Requirements for Structural Concrete <br />(ACI 318-05) and Commentary (ACI 318R-05). <br /> <br />Association of Bay Area Governments. 2001. Liquefaction Hazard Map for Alameda County, <br />Scenario: 1906 San Francisco Earthquake. <br /> <br />California Building Code. 2019. <br /> <br />California Department of Transportation. 2017. Highway Design Manual. <br /> <br />CBG Civil Engineers. 2025. Arroyo Lago, Planned Unit Development & Vesting Tentative Map, <br />Tract 8423, City of Pleasanton, Alameda County, California. July 11, 2025. Job No. <br />3435-010. <br /> <br />Dibblee, T.W., Jr. 2005. Preliminary Geologic Map of the Livermore Quadrangle, Alameda <br />County, California. U.S. Geological Survey Open-file Report. <br /> <br />ENGEO. 2020. Ground Improvement Summary, East Pleasanton Specific Plan, Pleasanton, <br />California. October 21, 2020. Project No. 9785.001.001. <br /> <br />ENGEO. 2023. Preliminary Geotechnical Report, Arroyo Lago, Pleasanton, California. <br />May 18, 2023. Project No. 9785.004.001. <br /> <br />ENGEO. 2024. Geotechnical Feasibility Report, Arroyo Lago – Infrastructure Area, Pleasanton, <br />California. January 19, 2024, Revised March 12, 2024. Project No. 9785.004.003. <br /> <br />Haley & Aldrich. 2013. Geotechnical Services During Construction, Filling of Busch Pit, <br />Pleasanton Lakes Development, Pleasanton, California. December 18, 2013. File No. <br />130540-002. <br /> <br />Haley & Aldrich. 2017. Report on Preliminary Geotechnical Investigation, Unincorporated <br />Alameda County, California. June 2017. File No. 130540-002. <br /> <br />Haley & Aldrich. 2019. Final Grading Summary - Geotechnical Services During Construction, <br />Filling of Busch Pit, Pleasanton Lakes Development, Pleasanton, California. <br />December 12, 2019. File No. 130540. <br /> <br />Haley & Aldrich. 2021. Report on Preliminary Subsurface Conditions Report, Unincorporated <br />Alameda County, California. December 2021. File No. 130540-002. <br /> <br />Haley & Aldrich. 2023. Report on ASTM Phase I Environmental Site Assessment. Arroyo Lago <br />Residential Community, Pleasanton, California. June 22, 2023. File No. 0207936. <br /> <br />Robertson, P. K. and Campanella, R. G. 1998. Guidelines for Geotechnical Design Using CPT <br />and CPTU Data. <br />