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• <br /> a U A L I T Y C O N T R O L R E S U L T S <br /> Job Number.: 992525 Report Date.: 12/14/1999 <br /> ' CUSTOMER: IT Group PROJECT: Southland Martinez ATTN: Rhonda Teicheira <br /> CC Type Description Reag. Code Lab ID Dilution Factor Date Time <br /> MSD Matrix Spike Duplicate 09102802A 992527-1 12/03/1999 1439 <br /> Parameter/Test Description OC Result OC Result True Value Orig. Value Calc. Result * Limits F <br /> Benzene 50.98 50.80 50 0.43 101.1 u 39-150 <br /> 029u <br /> Ethylbenzene 55.29 54.74 50 0.00 110.6 32-160 <br /> 1 20 <br /> ' Methyl-t-Butyt Ether (MTBE) 233.29 242.97 250 0.00 93.3 50-150 <br /> 4 25 <br /> Toluene 49.18 48.89 50 0.22 97.9 46-148 <br /> 1 20 <br /> ' Xylenes (total) 159.38 158.39 150 0.19 106.1 75-125 <br /> 1 20 <br /> Test Method.....`..: EPA 82606 Batch........ -. 10020 --Analyst..: am <br /> Method Description_: Volatile Organics by GC/MS Units.............: ug/L <br /> LCSLaboratory Control Sample 09112901 12/07/1999- 1122 <br /> - - <br /> Parameter/lest Description OC Result OC Result True Value Drig. value Calc. Result Limits F <br /> tert-Butyl Alcohol (TBR) 1298.97 1000.D00000 129.9 37-175 <br /> ' Di-Isopropyl Ether 40.76 50.000000 81.5 60-138 <br /> Ethyl tert-Butyl Ether (ETRE) 43.68 50.000000 87.4 51-143 <br /> tert-Amyl Methyl Ether 43.45 50.000000 B6.9 64-137 <br /> Methyl-t-Butyl Ether (MTBE) 105.04 100.000000 105.0 33-169 <br /> 1,2-Dichloroethane 10.72 10.000000 107.2 70-130 <br /> 1,2-Dibromoethane (EDB) 8.83 10.000000 88.3 70-130 <br /> �MG <br /> Method Blank 12/07/1999 1151 <br /> ' L-- Parameter/Test Description CC Result OC Result True Value Orig. Value Calc. Result Limits F <br /> tort-Butyl ALcohaL (TBA) 0 <br /> Di-IsopropyL Ether 0 <br /> Ethyl tert-Butyl Ether (ETRE) 0 <br /> Cert-Amyl Methyl Ether 0 <br /> Methyl-t-Butyl Ether (MTBE) 0.10 <br /> 1,2-Dichloroethane 0 <br /> 1,2-Dibromoethane (EDB) 0 <br /> i <br /> �S Matrix Spike 09112901 992556-6 1Z/07/199F 1705 <br /> Parameter/Test Description OC Result OC Result True Value Orig. Value Calc. Result Limits F <br /> Cert-Butyl Alcohol (TBA) 1317.66 1000.000000 0 131.8 48-194 <br /> Di-Isopropyl Ether 38.89 50.000000 0 77.8 53-149 <br /> Ethyl tert-Butyl Ether (ETRE) 43.21 50.000000 0 86.4 53-148 <br /> tert-AmyL Methyl Ether 42.90 50.000000 C 85.8 49-158 <br /> ethyl-t-Butyl Ether (MTBE) 111.38 100.000000 0.43 111.0 44-190 <br /> Dichloroethane 11.04 10.000000 0 110.4 70 130 <br /> Dibromoethane (EDB) 8.29 10.000000 0 82.9 70-130 <br /> Page 11 %_% RLC, R=RPD, A-ABS Diff., 0-'h Diff. <br />