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PRECISION <br /> EATWRO-TEC <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Tuesday,March 13, 2007 <br /> Attention: Gray W.Roy <br /> R&L Diesel <br /> P.O.Box 2498 Report Page 10 of 23 <br /> Danville, CA 94526 <br /> Volatile Organic Compoundsy EPA Method 8260B <br /> Sample Inform ion - <br /> Sample ID: Under Tank Sample Type: Grab <br /> Laboratory ID. 7022608-02 Project Name: UST-Waste Oil <br /> Date/Time Sampled: 26-Feb-07 00:00 by Guy W.Roy Sample Matrix: Soil <br /> i <br /> Test Parameter Result DLR Unit Dilution atch n2pared Anal sis Date Method Notes <br /> Acetone NO 100 ug/kg 1 A 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> Benzene NO 2.00 ug/kg 1 A 72708 27-Feb-07 27-Feb-07 EPA.82608 <br /> Bromobenzene NO 2.00 uglkg 1 A 72708 27-Feb-07 27-Feb-07 EPA 82608 <br /> -Bromochloromettlane -ND - 2.00 --ug/kg 1 A 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> Bromodichloromethane NO 2.00 ug/kg 1 A 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> Bromoform NO 2.00 ug/kg 1 At 72708 27-Feb-07 27-Feb-07 EPA 82608 <br /> Bromomethane NO 2.00 ug/kg 1 At 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> 2-Butanone NO 20.0 ug/kg 1 At 72708 27-Feb-07 27-Feb-07 EPA 8260E <br /> n-Butylbenzene 4.04 2.00 ug/kg 1 A 72708 27-Feb-07 27-Feb-07 EPA 82608 <br /> sec-Butylbenzene 4.10 2.00 uglkg 1 At 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> tert-Butylbenzene NO 2.00 ug/kg 1 A 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> Carbon disulfide ND 20.0 ug/kg 1 At 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> Carbon tetrachloride NO. 2.00 ug/kg 1 A 72708 27-Feb-07 27-Feb-07 EPA 82608 <br /> Chlorobenzene NO 2.00 ug/kg 1 At 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> Chloroethane NO 2.00 uglkg 1 At 72708 27-Feb-07 27-Feb-07 EPA 8260B <br /> 2-Chloroethylvinyl ether NO 20.0 ug/kg 1 A 72708 27-Feb-07 27-Feb-07 EPA 82606 <br /> Chloroform NO 2.00 ug/kg 1 At 72708 27-Feb-07 27-Feb-07 EPA 8260E <br /> Chloromethane NO 2.00 ug/kg 1 A 2708 27-Feb-07 27-Feb-07 EPA 8260B <br /> 2-Chlorotoluene 7.29 2.00 ug/kg 1 AB11 2708 27-Feb-07 27-Feb-07 EPA 8260B i <br /> 4-Chlorotoluene 2.42 2.00 ug/kg 1 AB 12708 27-Feb-07 27-Feb-07 EPA 8260B d <br /> Dibromochloromethane NO 2.00 ug/kg 1 AB 12708 27-Feb-07 27-Feb-07 EPA 8260E <br /> 1,2-Dibromo-3-chloropropane NO 2.00 ug/kg 1 AB 2708 27-Feb-07 27-Feb-07 EPA 8260B <br /> 1,2-Dibromoethane(EDB) NO 2.00 ug/kg 1 AB 2708 27-Feb-07 27-Feb-07 EPA 82608 I <br /> Dibromomethane ND 2.00 ug/kg 1 AB 2708 27-Feb-07 27-Feb-07 EPA 8260B <br /> 1,2-Dichlorobenzene NO 2.00 ug/kg 1 AB 2708 27-Feb-07 27-Feb-07 EPA 8260B <br /> 1,3-Dichlorobenzene NO 2.00 ug/kg 1 AB 2708 27-Feb-07 27-Feb-07 EPA 82605 <br /> 1,4-Dichlorobenzene NO 2.00 ug/kg 1 AB 2708 27-Feb-07 27-Feb-07 EPA 8260B <br /> Dichlorodifluoromethane NO 2.00 ug/kg 1 AB 2708 27-Feb-07 27-Feb-07 EPA 8260B <br /> 1,1-Dichloroethane NO 2.00 ug/kg 1 AB 2708 27-Feb-07 27-Feb-07 EPA 8260B <br /> mglL=milligramsperLiter=ppm DLR=Detection LimitforPurpose of Reporting. <br /> ug/L=micrograms perLrter-ppb Exceptional sample matrices or Interferences may <br /> result in hrgher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> /OLIZ� -' <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 vhone: (209) 47 -8105 Fax: (209) 477-8148 <br />