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Page 14 of 18 <br /> alscience ,if 4 _ C-? <br /> 4� <br /> nvironmental Quality Control - LCS/LCS Duplicate <br /> aboratories, Inc. Mt . <br /> Klff Analytical Date Received NIA <br /> 2795 2nd Street, Suite 300 Work Order No 05-05-1068 <br /> Davis, CA 95616-6593 Preparation EPA 624 <br /> Method EPA 624 <br /> Project 2575 Country Club Boulevard, Stockton <br /> Date Date LCS/LCSD Batch <br /> Quality Control Sample ID Matrix Instrument PreEared Ana!474d Number <br /> Parameter LCS%REC LCSD%REC %REC CL RPD RPD CL Qualifiers <br /> Benzene 97 94 85-115 3 0-8 <br /> Bromodichloromethane 99 97 73-121 2 0-9 <br /> Bromoform 102 98 80-134 4 0-10 <br /> Carbon Tetrachloride 96 92 83-125 5 0-10 <br /> Chlorobenzene 99 96 77-119 4 0-10 <br /> Chloroethane 90 89 81-129 2 0-9 <br /> Chloromethane 73 70 49-127 4 0-25 <br /> 2-Chtoroethyl Vinyl Ether 87 76 6-144 13 0-94 <br /> Chloroform 97 92 84-120 5 0-8 <br /> 1,3-Dichlorobenzene 100 96 80-116 4 0-10 <br /> 1,4-Dichlorobenzene 98 94 80-116 5 0-10 <br /> 1,2-Dichlorobenzene 100 96 80-196 4 0-9 <br /> Dibromochloromethane 101 98 81-123 3 0-9 <br /> 1,1-Dichloroethane 96 91 83-119 5 0-8 <br /> 1,1-Dichloroethene 86 81 78-126 6 0-10 <br /> t-1,2-Dichloroethene 95 90 77-125 5 0-9 <br /> 1,2-Dichloropropane 98 96 84-120 2 0-9 <br /> c-1,3-Dichloropropene 109 106 76-124 3 0-9 <br /> t-1,3-Dichloropropene 108 104 59-137 4 0-9 <br /> Ethylbenzene 101 98 77-119 4 0-10 <br /> Methylene Chloride 94 90 76-123 4 0 8 <br /> 1,1,2,2-Tetrachloroethane 100 96 84-120 5 0-9 <br /> Tetrachloroethene 95 98 73-139 3 0-15 <br /> Toluene 102 99 83-119 3 0-8 <br /> 1,1,1-Tnchloroethane 96 91 83-119 6 0-9 <br /> 1,1,2-Tnchlorcethane 102 99 81-117 3 0-8 <br /> Tnchloroethene 98 96 85-115 2 0-8 <br /> Tnchlorofluoromethane 91 88 85-139 4 0-9 <br /> vinyl Chloride 84 80 69-129 4 0-11 <br /> o-Xylene 102 98 74-122 4 0-10 <br /> p/m-Xylene 101 97 75-123 4 0-11 <br /> Methyl-t-Butyl Ether(MTBE) 87 83 79-133 6 0-17 <br /> RPD-Relative Percent Difference CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL (714}895-5494 . FAX (714) 894-7501 <br />