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(OHL" <br /> CORE LABORATORIES <br /> Q U A L I T Y C O N T R 0 L R E S U L T S <br /> Job Number 981324 Date 09/14/98 <br /> CUSTOMER Fluor Daniel GTI PROJECT SL MANTECA #19976 ATTN- Shelby Lathrop <br /> ac <br /> Type Description Reag Code Lab ID Dilution Factor Date Time <br /> Test Method EPA 82608 Batch 2809 Analyst daf <br /> Method Description Volatile Organics by GC/MS Um is ug/L <br /> M8 Method Blank 09/10/98 1227 <br /> Parameter/Test Description QC Result OC Result True Value Orig Value Calc Result * Limits <br /> Itrt-Butyl Alcohol (TBA) -45 33 100 <br /> isopropyl Ether -2 80 5 00 <br /> hyl tert-butyl Ether (ETRE) 0 5 00 <br /> tert-Amyl Methyl Ether 0 5 00 <br /> thy[-t-Butyl Ether (MTBE) -5 35 10 00 <br /> CCV Continuing Calibration Verification 08060207 1000 09/10/98 1042 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc Result Limits <br /> tert-Butyl Alcohol (TBA) 405 30 500 000000 81 % 80-120 <br /> Di-Isopropyl Ether 26 05 25 000000 104 % 80-120 <br /> ptert-Butyl Ether (ETRE) 23 47 25 000000 94 % 80-120 <br /> myl Methyl Ether 21 63 25 000000 87 % 80-120 <br /> tyl-t-Butyl Ether (MTBE) 47 60 50 000000 95 % 80-120 <br /> MS Matrix Spike 08060207 981291-1 1000 09/09/98 2202 <br /> Parameter/Test Description OC Resuli GC Result True Valiaa Urig Value Calc Result * Limits <br /> rt-Butyl Alcohol (TBA) 453 59 500 000000 -39 69 98 7 % 75-125 <br /> 1Isopropyl Ether 26 20 25 000000 0 104 8 % 75-125 <br /> hyt tert Butyl Ether (ETRE) 23 95 25 000000 -2 31 105 0 % 75-125 <br /> tent-Amyl Methyl Ether 22 16 25 000000 0 88 6 % 75-125 <br /> thyl-t-Butyl Ether (MTBE) 47 89 50 000000 -4 72 105 2 % 75-125 <br /> MSD Matrix Spike Duplicate 08060Zg7 981291-1 1000 09/09/98 2240 <br /> Parameter/Test Description OC Result QC Result True Value Orig Value Calc Result * Limits <br /> rt-Butyl Alcohol (TBA) 441 06 453 59 500 000000 39 69 96 2 75-125 <br /> 3 R 20 <br /> Isopropyl Ether 27 32 26 20 25 000000 0 109 3 % 75-125 <br /> 4 R 20 <br /> 1h-yL tent-Butyl Ether (ETRE) 24 72 23 95 25 000000 -2 31 108 1 % 75-125 <br /> 3 R 20 <br /> tert-Amyl Methyl Ether 22 51 22 16 25 000000 0 90 0 % 75-125 <br /> 2 R 20 <br /> 'thyl-t-Butyl Ether (MTBE) 49 66 47 89 50 000000 -4 72 108 8 % 75-125 <br /> 4 R 20 <br /> Page 7 <br /> ' * %-'% REC R-RPD A-ABS Diff D-% Diff <br /> II v 1 I +1 5 11 W x f la it rHyn�l <br /> 1 1 n 1 (,trr L t r C I x I 1 1 n i l t t 1 t tri rl tt c n xl t 1 It w t ry u 1l lL matt <br /> f tt t l + ..t c t wl i 4 1 Y t rt x y t l + II n [lr I f Cnt xi utx I I .t nu .. t.l» lot Co el IH at0 <br />