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Geotechnical Engineering Investigation Page 13 of 24 <br /> New Residential Subdivision <br /> 2706 Pock Lane <br /> Stockton, CA 95205 <br /> March 30, 2021 CTE Job # 25-1097G <br /> Engineered fill in all structure areas should be moisture treated to at least 3% above <br /> optimum moisture content and compacted to between 88% and 92% relative compaction. <br /> The moisture treated and compacted fill shall extend from structure subgrade soils to a <br /> depth of at least 1-foot below structure footings. <br /> 5.2.2 Non-Structural Support Soils <br /> The upper 12 inches of the driveways and parking and drive areas may be lime treated, if <br /> desired,to substantially reduce the overall structural pavement section. The lime treatment <br /> of the pavement and surface improvement areas if desired, should be conducted as <br /> described above. <br /> For areas located outside of the building pad but in surface improvement areas we <br /> recommend that 12 inches of material below the bottom of improvements be <br /> overexcavated. Then, 12 inches of the exposed native soils should be scarified, moisture <br /> conditioned and compacted in place.Material in these areas should be moisture conditioned <br /> to at least 3% above optimum moisture and recompacted to between 88-92% relative <br /> compaction as determined by ASTM D1557. Moisture conditioning, compaction, and <br /> grading control is very important in these areas, as they are highly susceptible to the shrink <br /> swell effects of expansive soils. <br /> 5.3 Foundation Recommendations <br /> CTE anticipates it will be feasible to utilize post tensioned foundation system on moisture <br /> conditioned and compacted soils for the support of the proposed structure foundation system.Lime <br /> treatment of foundation subgrade can be performed to reduce the expected differential movement <br /> of the slab during shrink/swell cycles. Recommendations for the foundation system as well as <br /> slabs-on-grade are contained in the following subsections. <br /> 5.3.1 Post Tensioned Foundation <br /> Post-tension foundations are well suited for the support of the proposed residential <br /> structures. Post-tension foundations are recommended to control concrete shrinkage <br /> cracking and differential foundation movement due to minor swell or compression of site <br /> c 11 INC <br />