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110 2nd Avenue , #D7, Pacheco, CA 94553-5560 <br />cCampbell Analytical, Inc. Telephone : 925-798-1620 Fax : 925-798-1622 <br />Website: www.mccampbell.com E-mail: main cJmccampbell.com <br />L11 Mlem,ny,V.1awn01al-'-48awwayiE;lum <br />Matrix: S WorkOrder: 0405272 <br />EPA Method: SW8021 B/8015Cm Extraction: SW5030B Batch ID: 11563 Spiked Sample ID: 0405240-006A <br />Sample <br />Spiked <br />MS* MSD" IMS -MSD <br />LCS LCSD 'LCS-LCSD <br />Acceptance Criteria (%) <br />mg/Kg <br />mg/Kg <br />% Rec. ! % Rea % RPD <br />% Rec. % Rea % RPD <br />Low High <br />TPH(btex)£ <br />ND <br />0.60 <br />101 <br />141 <br />i 0 <br />98.6 <br />99 0.355 <br />70 130 <br />MTBE <br />ND <br />0.10 <br />94 <br />97.7 <br />3.77 <br />89.5 <br />91.6 2.39 <br />70 130 <br />Benzene <br />ND <br />3.17 <br />100 <br />101 0.934 <br />70 130 <br />0.10 <br />103 <br />106 <br />Toluene <br />ND <br />0.10 <br />90.2 <br />92.5 <br />2.50 <br />88.4 <br />86.4 2.35 <br />70 130 <br />Ethylbenzene <br />ND <br />0.10 <br />110 <br />113 <br />2.43 <br />109 <br />97.9 10.4 <br />70 130 <br />Xylenes <br />ND <br />0.30 <br />100 <br />t00 <br />0 <br />100 <br />100 0 <br />70 130 <br />%SS: <br />90.2 <br />0.10 <br />97 <br />102 <br />5.03 <br />94 <br />98.5 4.68 <br />70 130 <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 />MS = Matrix Spike; MSD = Matrix Spike Duplicate; LCS = Laboratory Control Sample; LCSD = Laboratory Control Sample Duplicate; RPD = Relative Percent <br />Deviation. <br />% Recovery = 100 * (MS -Sample) / (Amount Spiked); RPD = 100 * (MS - MSD) / ((MS + MSD) 12). <br />* MS and / or MSD spike recoveries may not be near 100% or the RPDs near 0% if: a) the sample is inhomogenous AND contains significant concentrations of <br />analyte relative to the amount spiked, or b) if that specific sample matrix interferes with spike recovery. <br />£ TPH(btex) = sum of BTEX areas from the FID. <br /># cluttered chromatogram; sample peak coelutes with surrogate peak. <br />N/A = not enough sample to perform matrix spike and matrix spike duplicate. <br />NR = 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 />analyte content. <br />DHS Certification No. 1644 QA/QC Officer <br />