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PMECISON <br /> iN®k).S i RAS <br /> 1041 S. PERSHING AVE., STOCKTON, CALIFORNIA 95206 <br /> 209,462-9911 NO. CALIF. 800:332-5900 <br /> ifv� Ci irnFirvEA h7 [i ri, : : <br /> September 23, 1987 �Usaw <br /> SEP � 019$7 <br /> Herman Ender ENVIROMENTAL HEALTH <br /> Laura Scudders FERMIT/SERVICES <br /> 100 Valpico Road <br /> Tracy, CA 95376 <br /> Re: Tank Excavation <br /> Dear Herman, <br /> As we discussed in our meeting of September 16, I have completed a plan <br /> and budget for futher soil sampling in the tank excavation. <br /> I propose that the following steps be taken to safely and quickly gather <br /> the samples needed. <br /> 1) The backfill in the excavation will be removed. <br /> 2) An OSHA approved trench box will be placed in the excavation at the <br /> point where sampling will be done. <br /> 3) From inside the trench box, samples will be hand augered at five <br /> and eight foot depths. This of course will depend on soil con- <br /> ditions. Ths shallow samples will be analyzed with the deeper <br /> samples held. If need be, the deeper samples can be analyzed if <br /> more information is required. <br /> 4) The San Joaquin Local Health District is requiring soil samples <br /> from the north and south ends of the excavation. A water sample <br /> will also be taken from the adjacent well . Sample results can <br /> be reported in 24 hours if you feel the situation warrants such <br /> action. <br /> 5) If standard turn around time is requested, the excavation should <br /> be backfilled for safety considerations. <br /> If you have any questions please feel free to call me at your convenience. <br /> Yours truly, <br /> PRECISION INDUSTRIES, INC. <br /> r <br /> r � J <br /> Nicolas Bokldes <br /> Operations Manager <br /> NB/pw <br /> CC:Mr. Bill Ludwig - Laura Scudders <br /> Mr. Doug Wilson - San Joaquin Local Health District <br />