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f �+ �' � � �5 �«�..� is :i •2. S.Ee �� —G SEQUOIA ANALYTICAL <br /> 0) — 1900 Bates Avenue • Suite LM + Concord, California 94520 <br /> (415) 686.9600 FAX (415) 686-96B9 <br /> Sampled: <br /> Apr 4 5991 .. <br /> Client Project ID: Unocal.sot Kettieman Lane,tndl Received; Apr 5, 1991 <br /> Kapsealian Engineering,Inc. Apr 6, 1991 <br /> P.O.Box 996 Matrix Descript: Soil ^zalyzed P <br /> Benicia,CA 94510 Analysts Method: EPA 5030/8015/8020 'ieported Apr 8 <br /> 104 0142 A D 1991. <br /> , <br /> Attention: March Kapreallan,P.E. First Samp e <br /> S with RTEX DISTINCTION (ERA 8015/$020) <br /> TOTAL PETROLEUM FUEL HYDROCARBON <br /> SampleSample Low/Median B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene <br /> mg/kg mg/kg mg/kg mg/kg <br /> mg/kg <br /> (Ppm) (ppm) (ppm) (ppm) (ppm) <br /> 24 a 0.098 s 0.10.: Q,#1 s 0.481 <br /> 104-0142 A-D Comp t <br /> 104-0143 A-D Came 4 14 <br /> N.D. N.D. 0.0070 0.041 <br /> N.D. N.D. 0.005fi� 0.021 t <br /> 104.0144 A-D Comp 5 4.9 ' <br /> N.D. N.D. <br /> 104.0145 A-D camp 6 <br /> 11 . 0.4078 0.027 <br /> 104-0146 A-D Comp 7 <br /> 11 ° 0.0675 0.039 i N.D. Q.012} <br /> N.D. 0.0090 0:0211 N.D. N.D. <br /> 104-0147 A-D Comps <br /> t N.D. N.D. <br /> 104-0148 A-D Comp 9 <br /> *1.5? 0.014 0,017. <br /> 104.0149 A-D Comp 10 N.D. <br /> N.D. N.D. N.D. N.D. <br /> 104-0150 A-D Comp 11 <br /> N.D. N.D. N.D. N.D. N.D. <br /> 1.0 <br /> 0,0050 0.0050 x <br /> Detection Limits: <br /> .0050 0.0050 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> Analytes reported as N.D.were not present above the stated limit at detection. <br /> SFQUn1A ANALYTICAL <br /> 0-�� 1040142.K1=1 <t' <br /> Belinda C.Vega <br /> Laboratory Director <br />