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F 03 <br /> 4 it is our recommendation that the floor of the excavation be <br /> over excavated to total depth of 25 feet below existing grade. <br /> When this depth is reached, one soil sample will be collected to <br /> confirm that the contaminated soil has been removed. if the <br /> confirmation sample ib cion-deet, the excavnt ion w.ilI be <br /> backfilled wjAh Gledrr sail from the excavdtlorr .,nd wzttj Imported <br /> pea gravel . The backfilled area will be mc.nitored for Compaction <br /> requirements and covered with asph,01L <br /> 5 It is our understanding that San Joaquin County will .inspect <br /> Lire E-XUdvdtZRrl prier to backfilling and observe the collection of <br /> the soil sample from the 25 foot level . It is also our <br /> undeLstdriding that no backfill material will be planed in the <br /> excavation without the wri.tzen approval of the County. <br /> 6 . 111 aceotddl,t-e with OuL couveisdtions, it is aux uriderstdrding <br /> that the County would like to obtain a water sample Frcrm t;Ie, <br /> domestic wateL well luudted dppr"ximately bO feet west of the, <br /> excavation. We have informed uu r cl -ient of Lha+ request and will <br /> Proceed afLes authoxxzation from the client and in consultation <br /> with the County. <br /> 7 , A report detailing the activities of ttie soil removal , x1E;ld <br /> observations and the cOulplete set of ana1ytzcd1 ieste1ts will be <br /> delivered Lhe County d.fteL completa (}n of field aOtivities <br /> Thaok yuu fUL Youi help and assistance . If we can answer any <br /> que�!,tiuiib Uz offer more information please contact tis at <br /> 916-965-8401 . <br /> Sxiluexefl/y. <br /> ,aim Wallace <br /> Regional Manager <br />