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geotechnical soil borings on three locations at the property(at the approximate locations shown on <br /> the proposed test boring location map). <br /> Location 1 (APN# 168-19-06). <br /> Twining will drill 30 geotechnical soil borings to depths ranging from 10 to 50 feet below site grade <br /> (BSG). <br /> Location 2 (APN# 168-19-07). . <br /> Twining will drill 44 geotechnical soil borings to depths ranging from 10 to 50 feet below site grade <br /> (BSG). <br /> Location 3 (APN# 168-17-07). <br /> Twining will drill 41 geotechnical soil borings to depths ranging from 10 to 50 feet below site grade <br /> (BSG). <br /> The geotechnical soil borings will be used for soil sampling/characterization to determine <br /> engineering and classification properties of the soils related to geotechnical concerns. The borings <br /> will be drilled with a 6 5/8"outside diameter hollow stem auger mounted on a CME 75 drill rig.Soil <br /> borings reaching to or below the water table will be backfilled with 10 sack sand-cement slurry <br /> which will be placed from the bottom up and the slurry will be cast through the hollow stem auger. <br /> The soil borings not reaching the water table will be backfilled with soil cuttings generated during <br /> drilling and backfill will be compacted. <br /> The following work is proposed to achieve the above referenced objective: <br /> • Obtain drilling permits from SJCDEH; and <br /> • Mark the site for Underground Service Alert (USA) at least 48 hours prior to drilling; <br /> Twining would appreciate a quick response to this letter. If you should have any questions,please <br /> do not hesitate to contact our office at.(800) 268-7021. <br /> Respectfully Submitted, <br /> THE TWINING LABORATORIES,INC. <br /> En * onmental and Geological Services Division <br /> 7 <br /> Vern Bennett <br /> Senior Phase H Supervisor <br /> � alid urram, o. 8116 <br /> Project Geologist <br /> F:\HOME\Katiec\Phase II\Soil Assessments\Vestar-French Camp Phase IRAddendum Workplan(7-14-06).wpd <br /> CC: -Mr.Jeff Lochner,Vestar Development Company,7575 Carson Boulevard,Long Beach,California 90808. <br /> -Mr.Read Andersen,Geotechnical Division Manager,Twining Laboratories,Inc.,Fresno, California. <br /> Attachments: <br /> Drawing 1 <br /> Health and Safety Plan <br />