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+LkoratoriesLancaster Analysis Report <br /> ' 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.lancasterlabs.com <br /> Page 1 of 21 <br /> ' Quality Control Summary <br /> ' Client Name: Chevron Group Number: 1210187 <br /> Reported: 09/14/10 at 04:55 PM <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 NDL*' 199 Units $RBC %RSC Limits RPD RPD Max <br /> Batch number: N102452AA Sample number(s) : 6075589-6075590 <br /> Acetone N.D. 6. 20 ug/l 133 112 49-234 17 30 <br /> t-Amyl methyl ether N.D. 0.5 4 ug/l 92 92 77-120 0 30 <br /> Benzene N.D. 0.5 4 ug/l 99 99 79-120 1 30 <br /> Bromobenzene N.D. 1. 5 ug/l 98 99 80-120 1 30 <br /> ' Bromochloromethane N.D. 1. 5 ug/l 102 102 80-120 0 30 <br /> Bromodichloromethane N.D. 1. 5 ug/l 99 98 80-120 1 30 <br /> Bromoform N.D. 1. 5 ug/l 94 95 61-120 1 30 <br /> Bromomethane N.D. 1. 5 ug/l 74 70 44-120 5 30 <br /> 2-Butanone N.D. 3. 10 ug/1 96 93 66-151 4 30 <br /> ' t-Butyl alcohol N.D. 5. 80 ug/1 106 105 62-129 1 30 <br /> n-Butylbenzene N.D. 1. 5 ug/1 80 83 74-120 3 30 <br /> sec-Butylbenzene N.D. 1. 5 ug/l 91 92 78-120 1 30 <br /> tent-Butylbenzene N.D. 1. 5 ug/l 93 94 80-120 0 30 <br /> Carbon Disulfide N.D. 1. 5 ug/l 89 90 62-120 1 30 <br /> Carbon Tetrachloride N.D. 1. 5 ug/l 96 96 75-123 0 30 <br /> Chlorobenzene N.D. 0.8 5 ug/l 103 103 80-120 0 30 <br /> Chloroethane N.D. 1. 5 ug/l 89 86 49-129 4 30 <br /> 2-Chloroethyl Vinyl Ether N.D. 2. 10 ug/l 79 80 56-129 1 30 <br /> Chloroform N.D. 0.8 5 ug/l 101 101 77-122 0 30 <br /> Chloromethane N.D. 1. 5 ug/l 87 77 60-129 12 30 <br /> 2-Chlorotoluene N.D. 1. 5 ug/l 97 97 80-120 1 30 <br /> 4-Chlorotoluene N.D. 1. 5 ug/l 98 96 80-120 2 30 <br /> 1,2-Dibromo-3-chloropropane N.D. 2. 5 ug/l 82 79 66-120 3 30 <br /> Dibromochloromethane N.D. 1. 5 ug/1 100 100 80-120 0 30 <br /> 1,2-Dibromoethmne N.D. 0.5 4 ug/l 101 101 80-120 0 30 <br /> Dibromcmethane N.D. 1. 5 ug/l 102 101 80-120 1 30 <br /> 1,2-Dichlorobenzene N.D. 1. 5 ug/l 99 101 80-120 2 30 <br /> 1,3-Dichlorobenzene N.D. 1. 5 ug/l 98 100 80-120 2 30 <br /> 1,4-Dichlorobenzene N.D. 1. 5 ug/l 97 98 80-120 1 30 <br /> ' Dichlorodifluoromethane N.D. 2. 5 ug/l 80 78 47-120 4 30 <br /> 1,1-Dichloroethane N.D. 1. 5 ug/l 97 98 79-120 2 30 <br /> 1,2-Dichloroethane N.D. 0.5 4 ug/1 101 99 70-130 2 30 <br /> 1,1-Dichloroethene N.D. 0.8 5 ug/1 96 98 74-123 2 30 <br /> cis-1,2-Dichloroethene N.D. 0.8 5 ug/l 99 101 80-120 2 30 <br /> trans-1,2-Dichloroethene N.D. 0.8 5 ug/l 100 101 80-120 1 30 <br /> 1,2-Dichloropropane N.D. 1. 5 ug/l 100 100 78-120 0 30 <br /> 1,3-Dichloropropane N.D. 1. 5 ug/l 100 99 80-120 1 30 <br /> 2,2-Dichloropropane N.D. 1. 5 ug/l 92 93 77-124 2 30 <br /> 1,1-Dichloropropene N.D. 1. 5 ug/1 97 96 80-120 1 30 <br /> ' cis-1,3-Dichloropropene N.D. 1. 5 ug/1 96 95 80-120 1 30 <br /> trans-1,3-Dichloropropene N.D. 1. 5 ug/l 96 92 79-120 3 30 <br /> Ethanol N.D. 50. 250 ug/l 137 131 54-149 5 30 <br /> Ethyl t-butyl ether N.D. 0.5 4 ug/l 89 91 76-120 2 30 <br /> BthylbenZene N.D. 0.5 4 ug/l 99 99 79-120 1 30 <br /> ' Freon 113 N.D. 2. 10 ug/l 98 97 69-128 1 30 <br /> Bexachlorobutadiene N.D. 2. 5 ug/l 69 75 58-120 7 30 <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 />