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110 2nd Avenue South, #137, Pacheco, CA 94553-5560 <br />cCam bell Analytical' Inc. Telephone :925-798-1620 Fax:925-798-1622 <br />Website: www.mccampbell.com E-mail: main@mccampbell.com_ I <br />-4 <br />Matrix: S WorkOrder: 0410089 <br />EPA Method: SW8021B/8015Cm Extraction: SW5030B BatchlD: 13499 Spiked Sample ID: 0410095-001A <br />Analyte <br />TPH(btex) e <br />Sample <br />Spiked <br />MS* <br />MSD* <br />MS -MSD* <br />LCS <br />LCSD <br />LCS-LCSD <br />Acceptance Criteria (%) <br />mg/Kg <br />ND <br />mg/Kg <br />0.60 <br />% Rec. <br />96.6 <br />% Rec. <br />99.5 <br />% RPD <br />2.99 <br />% Rec. <br />96.1 <br />% Rec. <br />97.5 <br />% RPD <br />1.48 <br />Low <br />70 <br />High <br />130 <br />MTBE <br />ND <br />0.10 <br />102 <br />104 <br />2.78 <br />99.3 <br />105 <br />5.69 <br />70 <br />130 <br />Benzene <br />ND <br />0.10 <br />99.2 <br />101 <br />1.92 <br />103 <br />106 <br />3.30 <br />70 <br />130 <br />Toluene <br />ND <br />0.10 <br />79.9 <br />81.8 <br />2.27 <br />82.7 <br />86 <br />3.85 <br />70 <br />130 <br />Ethylbenzene <br />ND <br />0.10 <br />94.5 <br />100 <br />5.82 <br />101 <br />105 <br />3.19 <br />70 <br />130 <br />Xylenes <br />ND <br />0.30 <br />81.7 <br />86.3 <br />5.56 <br />90.3 <br />91 <br />0.735 <br />70 <br />130 <br />%gg:87.0 <br />0.10 <br />103 <br />86 <br />18.2 <br />112 <br />113 <br />0.889 <br />70 <br />130 <br />All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions: <br />NONE <br />MSD = Matrix Spike Duplicate; LCS = Laboratory Control Sample; LCSD = Laboratory Control Sample Duplicate; RPD = <br />% Recovery = 100 * (MS -Sample) / (Amount Spiked); RPD = 100 * (MS - MSD) / ((MS + MSD) / 2). <br />* MS / MSD spike recoveries and / or %RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons: a) the sample is <br />inhomogenous AND contains significant concentrations of analyte relative to the amount spiked, or b) the spiked sample's matrix interferes with the spike recovery. <br />TPH(btex) = sum of BTEX areas from the FID. <br />cluttered chromatogram; sample peak coelutes with surrogate peak. <br />/A = not enough sample to perform matrix spike and matrix spike duplicate. <br />R = analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br />DHS Certification No. 1644 +' ' , QA/QC Officer <br />