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1 <br /> Lancaster � <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.laneasterlabs.com <br /> Page 2 of 14 <br /> Quality Control Summary ' <br /> Client Name: Chevron Group Number: 1127396 <br /> Reported: 01/21/09 at 05:10 PM <br /> Laboratory Compliance Quality Control ' <br /> Blank Blank Blank Report LCS LCSD LCS/LCSD <br /> Analyais Name Result MDL** L_9 Unita %REC %REC Limits RPD RPD Max <br /> o-Xylene N.D. 0.5 4 ug/l 101 83-113 ' <br /> Styrene N.D. 1. 5 ug/l 94 82-111 <br /> Bromoform N.D. 1. 5 ug/l 99 69-118 <br /> Isopropylbenzene N.D. 1. 5 ug/l 105 80-113 <br /> 1,1,2,2-Tetrachloroethane N.D. 1. 5 ug/l 91 72-119 <br /> Bromobenzene N.D. 1. 5 ug/l 101 82-110 <br /> 1,2,3-Tri <br /> chloropropane N.D. 1. 5 ug/l 99 78-117 ' <br /> n-Propylbenzene N.D. 1. 5 ug/l 102 78-119 <br /> 2-Chlorotoluene N.D. 1. 5 ug/l 99 78-115 <br /> 1,3,5-Trimethylbenzene N.D. 1. 5 ug/l 103 78-116 <br /> 4-Chlorotoluene N.D. 1. 5 ug/l 97 80-112 <br /> tert-Butylbenzene N.D. 1. 5 ug/l 101 74-114 <br /> 1,2,4-Trimethylbenzene N.D. 1. 5 ug/l 103 78-117 <br /> sec-Butylbenzene N.D. 1. 5 ug/l 104 72-120 <br /> p-Isopropyltoluene N.D. 1. 5 ug/l 105 72-118 <br /> 1,3-Dichlorobenzene N.D. 1. 5 ug/l 101 81-114 <br /> 1,4-Dichlorobenzene N.D. 1. 5 ug/l 100 84-116 <br /> n-Butylbenzene N.D. 1. 5 ug/l 100 75-120 <br /> 1,2-Dichlorobenzene N.D. 1. 5 ug/l 100 81-112 <br /> 1,2-Dibromo-3-chloropropane N.D. 2. 5 ug/l 95 65-121 <br /> 1,2,4-Trichlorobenzene N.D. 1. 5 ug/l 100 65-114 <br /> Hexachlorobutadiene N.D. 2. 5 ug/l 101 62-119 ' <br /> Naphthalene N.D. 1. 5 ug/l 94 61-116 <br /> 1,2,3-Trichlor6benzene N.D. 1. 5 ug/l 102 67-114 <br /> Acetone N.D. 6. 20 ug/l 154 40-200 <br /> Carbon Disulfide N.D. 1. 5 ug/l 106 69-119 <br /> 2-Butanone N.D. 3. 10 ug/l 120 63-157 <br /> trans-1,3-Dichloropropene N.D. 1. 5 ug/l 97 79-114 I <br /> cis-1,3-Dichloropropene N.D. 1. 5 ug/l 103 78-114 <br /> 4-Methyl-2-pentanone N.D. 3. 10 ug/l 100 63-126 <br /> 2-Hexanone N.D. 3. 10 ug/l 100 61-140 <br /> 2-Chloroethyl Vinyl Ether N.D. 2. 10 ug/l 99 51-142 <br /> Freon 113 N.D. 2. 10 ug/l 119 66-125 <br /> Batch number: N090152AA Sample number(s) : 5573131,5573134-5573135 <br /> Ethanol N.D. 50. 250 ug/l 83 45-156 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 4 ug/l 106 73-119 <br /> di-Isopropyl ether N.D. 0.5 4 ug/l 103 70-123 I <br /> Ethyl t-butyl ether N.D. 0.5 4 ug/l 104 74-120 <br /> t-Amyl methyl ether N.D. 0.5 4 ug/l 103 79-113 <br /> t-Butyl alcohol N.D. S. 80 ug/l 91 74-117 <br /> Dichlorodifluoromethane N.D. 2. 5 ug/l 110 45-158 <br /> Chloromethane N.D. 1. 5 ug/l 110 47-133 I <br /> Vinyl Chloride N.D. 1. 5 ug/l 86 62-128 <br /> Bromomethane N.D. 1. 5 ug/l 106 50-128 <br /> Chloroethane N.D. 1. 5 ug/l 101 56-128 <br /> Trichlorofluoromethane N.D. 2. 5 ug/l 95 60-137 <br /> 1,1-Dichloroethene N.D. 0.8 5 ug/l 103 76-122 <br /> Methylene Chloride N.D. 2. 5 ug/l 99 85-120 I <br /> trans-1,2-Dichloroethene N.D. 0.8 5 ug/l 102 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 115 74-130 <br /> cis-1,2-Dichloroethene N.D. 0.8 5 ug/l 99 84-117 <br /> Chloroform N.D. 0.8 5 ug/l 108 77-125 I <br /> Bromochloromethane N.D. 1. 5 ug/l 95 83-121 <br /> *-Outside of specification <br /> **-This limit was used in the evaluation of the final result for the blank I <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 /> I <br />