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Page 4 of 1.1 <br /> alscience <br /> ,__nvironmental Analytical Reportnei ; <br /> aboratories, Inc. r" <br /> Conestoga-Rovers &Associates Date Received: 07/21/10 <br /> 19449 Riverside Drive, Suite 230 Work Order No: 10-07-1508 <br /> Sonoma, CA 95476-6955 Preparation: N/A <br /> Method: EPA TO-15 <br /> Units: ug/m3 <br /> Project: Mountain House, Neighborhood C+D,Tracy, CA Page 1 of 2 <br /> Lab Sample Daterrime Date Daterrime <br /> Client Sample Number Number Collected Matrix Instrument Prepared Analyzed OC Batch ID <br /> SVP-1-5' 10-074508.1-A 07116/10 Air GC/MS YY NIA 07/21110 100721 1-01 <br /> 12:27 15:14 <br /> Parameter Result RI DF Qual Parameter Result RL DF Qual <br /> Benzene ND 2.6 1.63 Xylenes(total) ND 14 1.63 <br /> Toluene ND 3.1 1.63 Naphthalene ND 85 1.63 <br /> Ethylbenzene ND 3.5 1.63 <br /> Surrogates, REC M Control Qual Surmaates: REC M Control Qual <br /> Limits Limits <br /> 1,4-Bromolluorobenzene 106 57-129 1,2-Dichloroethane-d4 105 47-137 <br /> Toluene-d8 102 78-156 <br /> SVP-1-5'DUP 10-07-1508.2-A 07116110 Air GCIMS YY NIA 07121110 100721 L01 <br /> 12.37 16:15 <br /> Parameter Result RL DF Qual Parameter ResuB RL DF Qual <br /> Benzene ND 2.5 1.58 Xylenes(total) ND 14 1.58 <br /> Toluene NO 3.0 1.58 Naphthalene NO 83 1.58 <br /> Ethylbenzene ND 3.4 1.58 <br /> Surrooates: REC(°/1 control CQual Surrogates: REC M Contra Qual <br /> Limits Ibb <br /> 1,4-Bromofluorobenzene 105 57-129 1,2-Dichlorcethane-d4 102 47-137 <br /> Toluene-d8 99 78-156 <br /> SVP-1-16' 10-07-1508-3-A 07115110 Air GCIMS YY N/A 07121110 1007211-01 <br /> 13:06 17:02 <br /> Parameter Result RL DF Qual Parameter Result RL DF ( al <br /> Benzene ND 2.5 1.57 Xylenes(total) ND 14 1.57 <br /> Toluene NO 3.0 1.57 Naphthalene ND 82 1.57 <br /> Ethylbenzene ND 3.4 1.57 <br /> Surrogates: REC r%1 control Qual Surrogates: REC M Control Qual <br /> Limits IiInk <br /> 1,4-Bromofluorobenzene 108 57-129 12-Dichloroethane-d4 105 47-137 <br /> Toluene-d8 102 78-156 <br /> Trip.Blank 10-07-1508-4-A 07115110 Air GC/MS YY NIA 07121/10 1007211-01 <br /> 00:00 14.27 <br /> Parameter Result RL DF Qual Parameter Result RL DF Qual <br /> Benzene ND 1.6 1 Xylenes(total) ND 8.7 1 <br /> Toluene ND 1.9 1 Naphthalene ND 52 1 <br /> Ethylbenzene ND 2.2 1 <br /> Surrogates: REC("/1 Control Qual Surrooates: REC f%1 Control Qual <br /> Limits Ltih <br /> 1,4-Bromolluorobenzene 97 57-129 1,2-Dichlorcethaned4 104 47-137 <br /> Toluened8 96 78-156 <br /> RL-Reporting Limit DF-DiluBon Factor Qual-Dualifiers <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714)895-5494 • FAX: (714)894-7501 <br />