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�; � rfi•� _ <br /> y, RJ <br /> ik <br /> • # L?abla 2,• continued <br /> k <br /> sample # TPH-Dr TPH-0 B T 8 Y <br /> i Depth (Ppm) (ppm) (ppb) <br /> a ww r-w-www�ww w r www ww w--•w ww w w w w w--w-w w-r•.w w ww-w r�a- _ t <br /> DT82-25* N.D. 2600 6000 6500 - 5300 12000 <br /> (EBB) <br /> fr.> r------------------------------- <br /> Method----rr---www--aa---r-w----•--wMethod <br /> Detection 1.0 1.0 5.0 5.0 5.0 5,0 <br /> Limit <br /> ---------------- - <br /> TPA-D. . .Total Petroleum hydrocarbons as Diesel <br /> Tpg-o. . .Total petroleum Hydrocarbons as Oesoline <br /> BTEY. . .Bensene, toluene, ethylbensene, total arleaes <br /> i ppm. . .Parts per million a 1,000 ppb) <br /> ppb. . .Parts per billion (1 ppm <br /> Boring D7B1 was advanced in the Immediate area of the <br /> active vapor extraction wall located near Uriah's boring <br /> 9811. As shown, the depth at which Uriah originally <br /> detected 2,600 ppm TPH-D and 11,000 ppm is now free of <br /> detectable concentrations of all target analytes . Boring <br /> DTB2, advanced in the area of Uriah's boring EDO (near the <br /> entry door of Togo's restaurant) , was originally found to - <br /> contain up to 2,200 ppm TPH-D and 5,000 ppm TPA-G. These - <br /> concentrations have been reduced signiticantly- with TPA-D <br /> reduced to below laboratory detection limits, and TPR-O , <br /> reduced to 2,600 ppm. RPM is in the process of inata133ag <br /> a second vapor extraction well at DT22 (SBO) in order to <br /> complete remediation in this area in a timely :Wanner. t <br /> If you have any questions, or if we may otherwise be of <br /> assistance, please contact either of the undersigned at , <br /> (209) 538-9769. <br /> Binaerell, <br /> John L. Rap , REHO <br /> Manager of Field services <br /> Richard A. Jacoba, Ph.D. .. '- <br /> vice-President <br /> RAJJJER:ms <br /> ,y Pape 3 <br /> „� TOTAL P.04 <br />