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TMC ENGINEERS INC. <br />Geotechnical, Structural and Civil Engineering <br />Add: 9542 Pacific Ave, Anaheim, CA92804. Phone: 714-829-5053; Email: Tienchu.pe@gmail.com <br /> <br />Page 8 <br /> <br /> <br />6.0 CONCLUSIONS <br />Based on the results of our subsurface investigation, it is our opinion that the proposed <br />residential development is feasible from a geotechnical standpoint, provided the <br />recommendations contained herein are incorporated in the design and construction. The <br />following is a summary of the geotechnical design and construction factors that may affect <br />development of the site. <br />6.1 Seismicity <br />Based on our studies on seismicity, there are no known active faults crossing the property. <br />However, the site is located in a seismically active region and is subject to seismically induced <br />ground shaking from nearby and distant faults, which is a characteristic of all Southern <br />California areas. <br /> <br />6.2 Liquefaction <br />Differential settlement due to liquefaction is roughly estimated to be about ¼ inch for a <br />horizontal distance of 40 feet. Please note that this is only a rough estimate. <br />6.3 Groundwater <br />Ground water was not encountered at a depth of about 5 feet below the existing ground <br />surface during our subsurface investigation. In our opinion, groundwater will not be a <br />problem during the near surface construction. <br />6.4 Expansion Potential <br />Based on our field observation and testing of sample of the near ground surface on-site earth <br />materials, the foundation subgrade soils at the site generally consisted of sandy soil with <br />some sill and have a very low expansion potential. <br />FLOOD ZONE - 718 S <br />Flintridge Dr Unit# 23/26/2025