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REMEDIATION, TESTING AND DESIGN <br /> 849 Almar Avenue - Suite C-215 <br /> Santa Cruz , California 95060 <br /> Phone ( 408 ) 458-1612 <br /> Fax ( 408 ) 426- 5796 <br /> ' March 12 , 1993 <br /> Mr Mike Infurna y <br /> Local Oversight Program Director <br /> San Joaquin County Public Health Services <br /> 445 North San Joaquin Street <br /> Stockton, California 95201 <br /> Subject Workplan/Proposal to Conduct a Soil Gas Survey and Vacuum <br /> Extraction Feasibility Testing at Beacon Station #494 , <br /> 2185 East Fremont Street in Stockton, California <br /> Dear Mr. Infurna <br /> Remediation, Testing and Design (RTD ) is pleased to submit the <br /> following workplan to conduct a soil gas survey (SGS ) and vacuum <br /> extraction feasibility testing (VEFT ) at the above referenced <br /> Beacom Station in Stockton, California The submittal of this <br /> workplan is in response to our phone conversation on March 32 , <br /> 1993 , requesting RTD provide you with technical details and <br /> descriptions of the work to be performed at the sub3ect site . <br /> As we intended to initiate work on March 17 and March 18 , 1993 , we <br /> ' fully appreciate your cooperation in expediting this request and <br /> taking time to review this workplan Any comments that you may <br /> have will be gladly accepted and will be incorporated immediately <br /> , to ensure regulatory compliance <br /> ' SCOPE—OF WORK <br /> PTD proposes the following activities , 1 ) Conduct a soil gas survey <br /> ( SGS ) , 2 ) Conduct vacuum extraction feasibility testing (VEFT ) , and <br /> � ) Prepare a SGS/VEFT report. Details of these activities are <br /> presented below <br /> r J / <br /> S 'Soil -Gas Survey , <br /> In- order to investigate and characterize the general extent and <br /> shape of the gasoline plume in shallow soils , a limited soil gas <br /> survey ( SGS ) is proposed The SGS will generally consist of the <br /> installation of 10 temporary vapor extraction probes . The probes <br /> will be constructed of Schedule 80 3/4-inch diameter carbon steel <br />