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i <br /> Lancaster <br /> Laboratories Analysis Report <br /> port <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-65&2681•www.tancastertabS.COm I <br /> Page 1 of 4 <br /> Quality Control Summary <br /> Client Name: Chevron <br /> Reported: 01/29/09 at 02 :12 PM Group Number: 1128686 <br /> Matrix QC may not be reported if site-specific QC samples were not ' <br /> submitted. In these situations, to demonstrate precision and accuracy at <br /> a batch level, a LCS/LCSD was performed, unless otherwise specified in the <br /> method. <br /> Laboratory Compliance Quality Control <br /> Blank Blank Blank Report LCS LCSD LCS/LCSD ' <br /> Analysis Name Result MDL** Loo Unita $RSC `kRBC Limits RPD RPD Max <br /> Batch number: 09021B07A Sample number(s) : 5579890-5579891 <br /> TPH-GRO N. CA water C6-C12 N.D. 50. 100 ug/l 100 100 75-135 0 30 <br /> Batch number: N090212AA Sample number(s) : 5579890-5579891 ' <br /> Ethanol N.D. 50. 250 ug/l 78 45-156 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 4 ug/l 108 73-119 <br /> di-Isopropyl ether N.D. 0.5 4 ug/l 102 70-123 <br /> Ethyl t-butyl ether N.D. 0.5 4 ug/l 106 74-120 <br /> t-Amyl methyl ether N.D. 0.5 4 ug/l 105 79-113 <br /> t-Butyl alcohol N.D. 5. 80 ug/l 90 74-117 <br /> Dichlorodifluoromethane N.D. 2. 5 ug/l 110 45-158 <br /> Chloromethane N.D. 1. 5 ug/l 105 47-133 <br /> Vinyl Chloride N.D. 1. 5 ug/l 97 62-128 <br /> Brom methane N.D. 1. 5 ug/l 104 50-128 <br /> oethane ' <br /> ChlorN.D. 1. 5 ug/l 103 56-128 <br /> Trichlorofluoromethane N.D. 2. 5 ug/1 104 60-137 <br /> 1,1-Dichloroethene N.D. 0.8 5 ug/l 105 76-122 <br /> Methylene Chloride N.D. 2. 5 ug/l 100 85-120 <br /> trans-1,2-Dichloroethene N.D. 0.8 5 ug/l 103 83-117 <br /> 1,1-Dichloroethane N.D. 1. 5 ug/l 107 83-127 ' <br /> 2,2-Dichloropropane N.D. 1. 5 ug/l 117 74-130 <br /> cis-1,2-Dichloroethene N.D. 0.8 5 ug/l 103 84-117 <br /> Chloroform N.D. 0.8 5 ug/l 111 77-125 <br /> Bromochloromethane N.D. 1. 5 ug/l 100 83-121 <br /> 1,1,1-Trichloroethane N.D. 0.8 5 ug/l 118 83-127 ' <br /> Carbon Tetrachloride N.D. 1. 5 ug/l 115 77-130 <br /> 1,1-Dichloropropene N.D. 1. 5 ug/l 108 64-116 <br /> Benzene N.D. 0.5 4 ug/l 104 78-119 <br /> 1,2-Dichloroethane N.D. 0.5 4 ug/l 121 69-135 <br /> Trichloroethene N.D. 1. 5 ug/l 106 87-117 ' <br /> 1,2-Dichloropropane N.D. 1. 5 ug/l 101 <br /> Dibromomethane 80-117 <br /> N.D. 1. 5 ug/l 106 87-117 <br /> Bromodichloromethane N.D. 1. 5 ug/l 108 83-121 <br /> Toluene N.D. 0.5 4 ug/l 95 -115-113 <br /> 1,1,2-Trichloroethane N.D. 0.8 5 ug/l 94 8855 <br /> Tetrachloroethene N.D. 0.8 5 ug/l 98 76-118 ' <br /> 1,3-Dichloropropane N.D. 1. 5 ug/l 97 84-119 <br /> Dibromochloromethane N.D. 1. 5 ug/l 95 78-119 <br /> 1,2-Dibromoethane N.D. 0.5 4 ug/l 97 <br /> Chlorobenzene 81-114 <br /> N.D. 0.8 5 ug/l 97 85-115 <br /> 1,1,1,2-Tetrachloroethane N.D. 1. 5 ug/l 99 P' Y N.D. 0.5 4 ug/1 83-114 ' <br /> Ethylbenzene N.D. 0.5 4 <br /> m+ X lens ug/l 101 82-119 <br /> 99 <br /> o-Xylene N.D. 0.5 4 ug/l 98 83-113 <br /> 83-113 <br /> Styrene N.D. 1. 5 ug/l 92 82-111 <br /> Bromoform N.D. 1. 5 ug/l 86 69-118 <br /> Isopropylbenzene N.D. 1. 5 ug/l 102 80-113 <br /> *-Outside of specification <br /> **-This limit was used in the evaluation of the final result for the blank ' <br /> (1)The result for one or both determinations was less than five times the LOQ. <br /> (2)The unspiked result was more than four times the spike added. <br /> r <br />