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Project No.: D-6289-08 <br />St. Barbara Catholic School <br />Percolation -Infiltration Tests <br />Water Data Library (Plates G-1 and G-2 in Appendix A). <br />groundwater was found to be 5 feet in accordance with California <br />(CGS, Previously CDMG) as shown on Plate F-3. <br />CITY OF SANTA ANA <br />Planning and Building Agency <br />may, lS. <br />Approved <br />FOR PERMIT ISSUANCE <br />, historical <br />urvey <br />The potential for ground water to rise to the ground surface in the site area is considered <br />to be unlikely. <br />Laboratory Testing <br />Laboratory testing was programmed following a review of the field investigation data to <br />be evaluated. Tests included physical testing to determine soil characteristics and <br />selective tests. Test results are presented in Appendix A. <br />Mechanical Analysis (ASTM D-422) <br />Mechanical analyses by the hydrometer test method were performed to confirm field <br />classifications. Test results are as follows: <br />Perc Test Hole <br />No. <br />Sample <br />Depth (ft) <br />Sand <br />Percent <br />Silt <br />Percent <br />Clay <br />Percent <br />PC-1 <br />4 <br />75 <br />20 <br />5 <br />PC-2 <br />4 <br />79 <br />17 <br />4 <br />Field Percolation Tests <br />We performed field percolation tests at PC-1 and PC-2 locations as shown on Existing <br />Site Plan, Boring and Percolation Tests Location Map (Plate B). The percolation test <br />procedure was performed in accordance with the current acceptable method, Technical <br />Guideline documents under the supervision of registered geotechnical engineer for <br />design, investigation, and reporting Low Impact Development Stormwater Infiltration <br />and are listed as follows: <br />2 <br />