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Report of Soils Investigation <br />2215 South Standard Ave., Proposed Addition <br />Sanra Ana. Califosria <br />Page 14 of27 <br />Job No. 40-0613 <br />April 5. 1999 <br />I <br />_I <br />I <br />"l <br />UBC table l9-A-4 found that a sulfate exposure of 0.957 is considered to be Severe. A <br />sulfate exposure of "Severe" warrants type V cement, with a maximum water- <br />cementitious ratio of 0.45 and a concrete strength of 4500 psi. A pH level of 7. 19 is <br />considered neutral. <br />9.5 Groundwater <br />Depth to groundwater for the site was observed to be 22 fbg for the site. It was reported <br />that the depth to groundwater has been as shallow as 8 fbg. As indicated hereiq <br />groundwater is not expected to impact the improvernents, provided recommendations for <br />site drainage are implemented. <br />Contained below are our recommendations and foundation design parameters which are <br />based on field testing, laboratory testing, site conditions, and our assumptions of the <br />details ofthe proposed project, Ifthe proposed project should vary zubstantially from the <br />zrssumptions made herein, this office should be contacted for revisions to our <br />recommendations. <br />IO.O CONCLUSIONS AND RECOMMENDATIONS <br />l0.l General <br />Based on the results of our evaluation, we conclude that the proposed construction at the <br />subject site is feasible from a geotechnical standpoint. The major factors affecting the <br />proposed development are (l) the presence ol loose surficial soils which will require <br />IJ <br />I <br />I