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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Friday,June 20,2008 <br /> Attention: Guy W.Roy <br /> R&L Diesel R-porl Page 34 afll <br /> P.O.Box 2498 <br /> Danville,CA M26 <br /> Total Petroleum Hydrocarbons-Gasoline <br /> Sample Injormatlo <br /> Sample ID: B4 -29 Sample Type: Grab <br /> Laboratory ID: 8030609-07 Project Name: UST-Waste Oil <br /> Date/Time Sampled.• 06-Mar-08 14:15 by Goy W.Roy Sample Matrix: Soil <br /> Test Parameter Result DLR Unit Dilution Barch Prepared Analysis Date Method Notes <br /> TPH-Gasoline ND 200 ag/kg 1 AC111112 11-Mar-08 11-Mar-09 LUFTIGCMS <br /> -... <br /> Surrogate-a-Bromoflvwobenzene 89% 75-125 <br /> I <br /> mg L-nrillrgrpms Iv,Lire,-ppm DLR=Desecft n Lamar fo,Prrrpose afAq vnirrg. <br /> ug L-nfrcmgr ,s per Lifer=ppb Lwcpft n l sample matrices or inref*remees may <br /> resnlr in higher derecfin lrmres. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 3935 N'. Coronado Ave .Stockton CA, 95204 vlwne: (20.9)477-8105 Farr: (209)546-7497 <br />