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Page 5 of 11 <br /> alscience <br /> Environmental Analytical Report <br /> lar aboratories, Inc. nel c ' <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 2 of 2 <br /> Lab Sample DateMme Date Daterrime <br /> Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID <br /> [_Method Blank 097-09-002-9,079 NIAAir. GCIMS YY N/A 07/21110 100721 L01 <br /> 13:40 <br /> Parameter Resuk RI 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 /> Su�gates ER C M Control Dual Surrogates: REC(% Control Qual <br /> Li its Limits <br /> 1,4-Bromofluorobenzene 100 57-129 1,2-Dichloroethaned4 101 47-137 <br /> Toluene-d8 100 78-156 <br /> RL Reporting Limit DF-DIIuUon Factor Qual-Qualifers <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714)895-5494 • FAX: (714)894-7501 <br />