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COLUMBIA ANALYTICAL SERVICES,INC. <br /> Analytical Report <br /> *t' ARCO Products Company Service Request: S9600993 <br /> Pect: 2130 Stockton/#!20805-114 006/TO#18957 00 Date Collected. 6/18196 <br /> Sample Matrix Air Date Received: 6119196 <br /> Date Extracted: NA <br /> Date Analyzed: 6120196 <br /> BTEX and Total Volatile Hydrocarbons <br /> EPA Methods 5030/8020/Modified 8015 <br /> Sample Name Effluent <br /> Lab Code 59600993-002 <br /> MRLs Results <br /> mg/m3 uL/L (ppmv) mg/m3 uL/L(ppmv) <br /> Benzene 05 02 ND ND <br /> Toluene 05 01 ND ND <br /> Ethylbenzene 05 01 ND ND <br /> Xylenes, Total 1 02 ND ND <br /> 1 Volatile Hydrocarbons <br /> 1 -05 10 5 11 27 <br /> C6- C12 20 5 38 93 <br /> TPH as Gasoline* 20 5 38 93 <br /> * TPH as gasoline is defined as C6 (benzene)through C12 (dodecane)and uses a <br /> molecular weight of 100 to calculate the ppmv <br /> 002194 <br /> Page 4 <br />