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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> SClient ARCO Products Companv Service Request: S9600301 <br /> Project 2130 Stockton/20805-114 004/TO#18957 00 Date Collected. 2/21/96 <br /> Sample Matrix Vapor Date Received 2/22/96 <br /> Date Extracted NA <br /> BTEX and Total Volatile Hvdrocarbons <br /> Units ppmV <br /> Sample Name INFLUENT EFFLUENT Method Blank <br /> Lab Code 59600301-001 S9600301-002 S9600223-VB <br /> Date Analyzed 2/23/96 2/23/96 2123/96 <br /> Analvte MRL <br /> Benzene 0 1 5 6 ND ND <br /> Toluene 0 1 26 ND ND <br /> EthvIbcnzene 01 5 5 ND ND <br /> Total Xylenes 02 46 ND ND <br /> Total Volatile Hvdrocarbons <br /> G -Cd Hvdrocarbons 5 <50* ND ND <br /> Cs -CR Hvdrocarbons 5 720 55 ND <br /> C9 -C,2 Hvdrocarbons 5 170 ND ND <br /> Gasoline Fraction (C,-C,,) 15 980 i9 ND <br /> Note ppmV= mg/m' X [24 45 (bas constant)/molecular weight(MW)l <br /> MW Benzene = 79 Toluene = 92 Ethvlbenzene= 106 Total Xvlenes= 106 <br /> MW Gasoline = 89 <br />• * The MRL is elevated due to lugh analyte concentration requiring simple dtluuon <br /> 1',221060194 <br /> Page 4 <br />