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, 16+,11/1996 14.44 4084379356 CAS/SAN JOSE PAGE 08 <br /> COLUMBIA ANALYTICAL gERVICE,S,INC. <br /> QAJQC Report <br /> Cum: ARCO Products Company Senice Request: 59601406 <br /> deet: 2I30 STOCKTON/20905-114 006/Tt#18957 00 Date Collected: 8126146 <br /> Sample Mttr'ls: Air Date Received! 8127196 <br /> Date Extracted: N/A <br /> Date Analyzed: 9/27/96 <br /> Duplicate Summary <br /> BTEX and Total Volatile Hydrocarbons <br /> Unita mgln13 <br /> Sample Name Influent <br /> Lab code S9601406-001 <br /> Duplicate Relative <br /> Sample Sample percent <br /> Axialy'te MRL Result Result Average Dif cmnce <br /> Benzene 0 3 <2 50* <2 30' -- -- <br /> Toluene 0 5 93 97 95 4 <br /> Ethylbenzene 0 5 56 58 57 4 <br /> Xylenes, Total 1 600 620 610 3 <br /> Total Volatile Hydrwaftns <br /> C1 -05 10 490 510 500 4 <br /> C6 -C12 20 3,300 3,400 3,350 3 <br /> TPHasGamhnc" 20 3,300 3,400 3,350 3 <br /> Note ppmV L—MWrn3 x [24 45 (gs constant}/molecular weight(MV)) <br /> MW Benzene!78, Toluene=92,Ethylbenzene- 106,Total Xylenes= 106 <br /> MW Gasoline- 100 <br /> TPH as gasoline 3s defined as C6 (b==ne)through C 12 (dodecane)and uses a <br /> molecular weight of 100 to calculate the ppmv <br /> •• Raised MRI.due to high analyte concentration requiring sample dilutnon <br /> as�s�►3. <br /> Pap <br /> 7 <br />