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Mr Steve Sasson Project 0805-147 04 <br /> October 9, 1997 <br /> Page 3 <br /> addition, the samples collected from the drill cuttings will be analyzed for total lead using <br /> EPA Method 7410, and for corrosivity, igrutability, and reactivity <br /> Well Development and Sampling <br /> EMCON will develop and sample the groundwater monitoring well In addition, a licensed <br /> surveyor will be contracted to survey the location of the well with respect to mean sea <br /> level This well will be added to the quarterly groundwater monitoring program and <br /> analyzed for TPHG using USEPA Method 8015 and BTEX and methyl tert-butyl ether <br /> using USEPA Method 602. EMCON's groundwater sampling field procedures are <br /> presented in the appendix <br /> DATA EVALUATION AND REPORT PREPARATION <br /> EMCON will evaluate field operations data and analytical reports The results of this <br /> investigation will be presented in the quarterly groundwater monitoring report following <br /> . completion of this additional investigation <br /> Please do not hesitate to call if you have any questions regarding this workplan <br /> Sincerely, �ED GFCZO <br /> EMCON cc,� MARK <br /> C:APPS <br /> Harold R Duke Jay R Johnson Exp, !L1 <br /> Project Geologist Senior Project S or �Q- <br /> R G 5867 SCF CAI-�FC�� <br /> Attachments Figure 1 Site Location Map <br /> Figure 2 Generalized Site Plan <br /> Appendix A Field Procedures <br /> cc Paul Supple, ARCO <br /> Elizabeth Thayer, California Regional Water Quality Control Board, <br /> Central Valley Region <br /> • <br /> SAON\PJM805\0805L4704BS-97\prz L <br />