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1534 Willow Pass Road, A g CA 94565-1701 <br />4 M c C a m p b e I l A n a l y i c a l, Inc. Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />"When Quality Counts" I <br />http://www.mccampbell.com/E-mail: main@mccatnpbell.com <br />QC SUMMARY REPORT FOR SW8021B/8015Bm <br />W.O. Sample Matrix: Soil QC Matrix: Soil BatchlD: 63488 WorkOrder: 1112484 <br />EPA Method: SW8021B/8015Bm <br />Extraction: SW5030B <br />Spiked Sample ID: <br />1112484-001A <br />Analyte <br />Sample <br />mg/Kg <br />Spiked <br />mg/Kg <br />MS <br />% Rec. <br />MSD <br />% Rec. <br />MS -MSD <br />% RPD <br />LCS <br />% Rec. <br />Acceptance Criteria (%) <br />MS / MSD RPD LCS <br />TPH(btex)£ <br />ND <br />0.60 <br />127 <br />124 <br />2.35 <br />118 <br />70-130 <br />20 <br />70-130 <br />MTBE <br />ND <br />0.10 <br />93.1 <br />91.9 <br />1.33 <br />90.6 <br />70- 130 <br />20 <br />70- 130 <br />Benzene <br />ND <br />0.10 <br />104 <br />108 <br />4.12 <br />106 <br />70-130 <br />20 <br />70- 130 <br />Toluene <br />ND <br />0.10 <br />104 <br />108 <br />3.42 <br />106 <br />70-130 <br />20 <br />70-130 <br />Ethylbenzene <br />ND <br />0.10 <br />105 <br />107 <br />1.85 <br />108 <br />70-130 <br />20 <br />70- 130 <br />Xylenes <br />ND <br />0.30 <br />109 <br />111 <br />1.97 <br />112 <br />70- 130 <br />20 <br />70-130 <br />%SS: <br />116 <br />0.10 <br />84 <br />89 <br />5.72 <br />84 <br />1 70- 130 <br />20 <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 />BATCH 63488 SUMMARY <br />Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed <br />1112484-001A 12/15/11 10:45 AM 12/15/11 12/16/116:47 AM 1112484-002A 12/15/11 11:00 AM 12/15/11 12/16/115:21 AM <br />1112484-003A 12/15/11 11:25 AM 12/15/11 12/16/11 7:16 AM 1112484-004A 12/15/11 11:35 AM 12/15/11 12/16/11 7:45 AM <br />1112484-OOSA 12/15/11 11:45 AM 12/15/11 12/16/11 8:14 AM <br />MS = Matrix Spike; MSD = Matrix Spike Duplicate; LCS = Laboratory Control Sample; LCSD = Laboratory Control Sample Duplicate; RPD = Relative Percent Deviation. <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 inhomogenous AND contains <br />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 />N/A = not enough sample to perform matrix spike and matrix spike duplicate. <br />NR = matrix interference and/or 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 <br />or analvte content. <br />DHS ELAP Certification 1644 <br />—:k- QA/QC Officer <br />Page 19 of 21 <br />