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51029972 y <br /> ,s 'Apr <br /> —04-00 12: 26P ARCO <br /> Project 805678 <br /> Ron Rowe <br /> February 28, 2000 <br /> Page 4 <br /> Task 3 Laboratory Analysis <br /> Approximately two to three soil samples <br /> from each boring will be submitted for la <br /> boraWry <br /> analysis. Submitted samples will include the samples with the highest PID reading and the <br /> pillary. fringe. Soil samples will'be analyzed by a state-certified and <br /> sample from the ca <br /> ARCO-approved laboratory for total petroleum hydrocarbons as gasoline (TPHG) using <br /> USEPA Method 8015M, and for benzene, toluene, ethylbenzene, total xylenes (BTEX), <br /> and methyl tert-butyl ether (MTBE) using USEPA.Method 8020. Additionally, samples <br /> a will be analyzed for fuel oxygenates MTBE, tert butyl alcohol (TBA), ethyl tertiary butyl <br /> ' ether (ETBE), di-isoprophyl ether (RIPE), tert-amyl methyl ether (TAME), using USEPA <br /> Method 8260. <br /> Groundwater samples will be analyzed TPHG using"USEPA Method 8015M; for BTEX <br /> and MTBE using USEPA Method 8020; and for fuel oxygenates (MTBE, TBA, ETBE, <br /> DIPS, and TAME) using USEPA Method 8260. <br /> Task 4 Report Preparation <br /> Upon completion of monitoring well installation activities and receipt of analytical data, <br /> IT will submit a report of findings. The report will include results of the well installation <br /> and sampling activities. Copies of boring logs, well details, and analytical reports, will be <br /> attached. <br /> PROJECT SCHEDULE <br /> Drilling permit applications will.be submitted and contractors will be scheduled for the <br /> proposed well installation activities upon receiving regulatory approval to proceed. <br /> Drilling and well installation will take approximately two to three days to complete. The <br /> well installation report will be submitted 8 to 10 weeks after field work is completed and <br /> all analytical data is received. <br /> i <br /> j <br /> Sac%N:�CamPk\DafalArchivcVtrcoL54691Reports\5469p103.doc-95\lsg:l IT Corporation <br /> 02/28/00 <br /> i <br /> 4 <br />