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1 I <br /> I <br /> I <br /> I <br /> 1 Q UAL F T Y C O N T R O L R E S U L T S <br /> Job Number 200279 Report Date.: 02/18/2000 <br />' CUSTOMER IT Group PROJECT: Southland - Martinez ATTN• Rhonda Teicheira <br /> I <br /> OC Type Description Reag. Code Lab ID Dilution Factor Date Time <br /> tMB Method Blank 02/09/2000 1040 � <br /> Parameter/Test Description QC Result OC Result True Value Orig Value Calc Result * Limits F <br />' tert-Butyl Alcohol (TBA) 2 82 <br /> Di-Isopropyl Ether 0 <br /> Ethyl tert-Butyl Ether (ETRE) 0 <br /> tert-Amyl Methyl Ether 0 <br /> Methyl-t-Butyl Ether (MTBE) 0 41 <br /> 1,2-Dichloroethane 0 <br /> 1,2-Dibromoethane (EDB) 0 <br />' Test Method EPA 82608 Batch ... 11055 Analyst. gfb <br /> Method Description Volatile Organics by GC/MS Units ... ug/L <br />' LC5 Laboratory Control Sample 00012401 02/10/2000 0418 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc. Result * Limits F <br /> Butyl Alcohol (TBA) 1452 30 1000 000000 145.2 37-175 <br /> sopropyl Ether 45.73 50 000000 91 5 60-138 <br /> yl tert-Butyl Ether (ETBE) 50 23 50 000000 100 5 51-143 <br /> tert-Amyl Methyl Ether 50.03 50 000000 100 1 64-137 <br /> fMethyl-t-Butyl Ether (MTBE) 116 81 100 000000 116 8 33-169 <br /> 1,2-Dichloroethane 9 68 10 000000 96.8 70-130 <br /> 1,2-Dibromoethane (EDB) 10 16 10 000000 101 6 70-130 <br />' MB Method Blank 02/10/2000 0521 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc Result * Limits F <br /> tert-Butyl Alcohol (TBA) 0 <br /> Di-Isopropyl Ether 0 <br /> Ethyl tert-Butyl Ether (ETBE) 0 <br /> tert-Amyl Methyl Ether 0 <br /> Methyl-t-Butyl ,her (MTBE) 0.30 <br /> 1,2-Dichloroethane 0 <br /> 1,2-Dibromoethane (EDB) 0 <br />' MS Matrix Spike 00012401 200279-5 T 02/10/2000 0900 <br /> Parameter/Test Description OC Result QC Result True Value Orig Value Calc Result * Limits F <br /> tert-Butyl Alcohol (TBA) 659 53 1000 000000 0 66.0 34-182 <br /> Di-Isopropyl Ether 45 56 50 000000 0 91.1 60-131 <br /> Ethyl tert-Butyl Ether (ETBE) 39 18 50 000000 0 78 4 64-138 <br /> tert-Amyl Methyl Ether 39 13 50 000000 0 78 3 67-154 <br /> Methyl-t-Butyl Ether (MTBE) 76 37 100 000000 3.73 72 6 71-142 <br /> 1,2-Dichloroethane 9 70 10 000000 0 97 0 70-130 <br /> 1,2-Dibromoethane (EDB) 9.51 10 000000 0 95 1 70-130 <br /> Page 14 * %=% REC, R=RPD, A=ABS Diff , D=% Diff. <br />