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Lancaster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PC Box 12425,Lancaster.PA 17605-2425•717-656-2300 Fax 717-656-2681•www.lancasterlabs.com , <br /> Page 2 of 21 ' <br /> Quality Control Summary <br /> Client Name: Chevron Group Number: 1210187 , <br /> Reported: 09/14/10 at 04:55 PM <br /> Blank Blank Blank Report LCS LCSD LCS/LCSD <br /> Analvais Name Reault MDL** LQQ Units RBC RBC Limits RPD RPD Nez <br /> 2-Nexanone N.D. 3. 10 ug/l 86 85 65-136 2 30 ' <br /> di-Isopropyl ether N.D. 0.5 4 ug/l 89 89 71-124 0 30 <br /> Isopropylbenzene N.D. 1. 5 ug/l 97 96 77-120 1 30 <br /> p-Isopropyltoluene N.D. 1. 5 ug/l 91 92 80-120 1 30 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 4 ug/l 94 96 76-120 2 30 <br /> 4-Methyl-2-pentanone N.D. 3. 30 ug/l 91 91 70-121 0 30 ' <br /> Methylene Chloride N.D. 2. 5 ug/l 96 96 80-120 0 30 <br /> Naphthalene N.D. 1. 5 ug/l 69 73 62-120 6 30 <br /> n-Propylbenzene N.D. 1. 5 ug/l 97 97 80-120 0 30 <br /> Styrene N.D. 1. 5 ug/l 98 99 80-120 1 30 <br /> 1,1,1,2-Tetrachloroethane N.D. 1. 5 ug/l 98 97 80-120 1 30 ' <br /> 1,1,2,2-Tetrachloroethane N.D. 1. 5 ug/l 95 97 71-120 2 30 <br /> Tetrachloroethene N.D. 0.8 5 ug/l 103 102 80-121 1 30 <br /> Toluene N.D. 0.5 4 ug/l 99 98 79-120 0 30 <br /> 1,2,3-Trichlorobenzene N.D. 1. 5 ug/l 81 86 65-120 6 30 <br /> 1,2,4-Trichlorobenzene N.D. 1. 5 ug/l 81 84 67-120 4 30 , <br /> 1,1,1-Trichloroethane N.D. 0.8 5 ug/l 95 95 75-127 0 30 <br /> 1,1,2-Trichloroethane N.D. 0.8 5 ug/l 101 101 80-120 0 30 <br /> Trichloroethene N.D. 1. 5 ug/l 101 100 80-120 1 30 <br /> Trichlorofluoromethane N.D. 2. 5 ug/l 90 89 64-129 2 30 <br /> 1,2,3-Trichloropropane N.D. 1. 5 ug/l 96 95 80-120 1 30 ' <br /> 1,2,4-Trimethylbenzene N.D. 1. 5 ug/l 96 96 74-120 0 30 <br /> 1,3,5-Trimethylbenzene N.D. 1. 5 ug/l 95 96 75-120 0 30 <br /> Vinyl Chloride N.D. 1. 5 ug/l 87 82 65-125 6 30 <br /> m+p-Xylene N.D. 0.5 4 ug/l 102 101 80-120 1 30 <br /> o-Xylene N.D. 0.5 4 ug/l 99 98 80-120 1 30 , <br /> Batch number: N102465AA Sample number/e) : 6075619-6075622 <br /> Acetone N.D. 6. 20 ug/l 161 49-234 <br /> t-Amyl methyl ether N.D. 0.5 4 ug/l 94 77-120 <br /> Benzene N.D. 0.5 4 ug/l 97 79-120 <br /> Bromobenzene N.D. 1. 5 ug/l 101 80-120 <br /> Bromochloromethane N.D. 1. 5 ug/l 102 80-120 <br /> Bromodichloromethane N.D. 1. 5 ug/l 94 80-120 <br /> Bromoform N.D. 1. 5 ug/l 77 61-120 <br /> Bromomethane N.D. 1. 5 ug/l 72 44-120 , <br /> 2-Butanone N.D. 3. 10 ug/l 108 66-151 <br /> t-Butyl alcohol N.D. S. 80 ug/l 106 62-129 <br /> n-Butylbenzene N.D. 1. 5 ug/l 98 74-120 <br /> sec-Butylbenzene N.D. 1. 5 ug/l 96 78-120 <br /> tert-Butylbenzene N.D. 1. 5 ug/l 99 80-120 <br /> Carbon Dieulfide N.D. 1. 5 ug/l 66 62-120 <br /> Carbon Tetrachloride N.D. 1. 5 ug/l 96 75-123 <br /> Chlorobenzene N.D. 0.8 5 ug/l 103 80-120 <br /> Chloroethane N.D. 1. 5 ug/l 85 49-129 <br /> 2-Chloroethyl Vinyl Ether N.D. 2. 30 ug/l 61 56-129 , <br /> Chloroform N.D. 0.8 5 ug/l 99 77-122 <br /> Chloromethane N.D. 1. 5 ug/l 101 60-129 <br /> 2-Chlorotoluene N.D. 1. 5 ug/l 99 80-120 <br /> 4-Chlorotoluene N.D. 1. 5 ug/l 100 80-120 <br /> 1,2-Dibromo-3-chloropropane N.D. 2. 5 ug/l 80 66-120 , <br /> Dibromrchloromethane N.D. 1. 5 ug/l 87 80-120 <br /> 1,2-Dibromoethane N.D. 0.5 4 ug/l 99 80-120 <br /> Dibromomethane N.D. 1. 5 ug/l 98 80-120 <br /> 1,2-Dichlorobenzene N.D. 1. 5 ug/l 100 80-120 <br /> 1,3-Dichlorobenzene N.D. 1. 5 ug/l 99 80-120 ' <br /> 1,4-Dichlorobenzene N.D. 1. 5 ug/l 98 80-120 <br /> Dichlorodifluoromethane N.D. 2. 5 ug/l 79 47-120 <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 />