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I110 2nd Avenue South,#til,Pacheco,CA 94553-5560 McCampbell Analytical, Inc. Telephone:925-798-1620 Fax:925-798-1622 ' Website:www.mccampbell.com E-mail;main r(�i mccampbell.com QC SUMMARY REPORT FOR SW8021B/80150n 1 Matrix: W WorkOrder: 0409100 ' EPA Method: SW8021B/8015Cm Extraction: SW5030B BatchlD:13031 Spilled Sample ID: 0409902-001A Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%a) ' pg/L pg/L %Rec. %Rec. %RPD %Rec. % Rec. % RPD Low High TPH(btex)£ ND 60 100 97.9 2.09 103 102 0.481 70 130 MTBE ND l0 96.4 94.1 2.39 99.4 99.5 0.0665 70 130 ' Benzene ND 10 102 102 0 99 99.9 0.899 70 130 Toluene ND 10 97.5 99.6 2.13 94.3 95-4 1.23 70 130 ' Ethylbenzene ND 10 103 100 2.44 99.2 99.9 0.644 70 130 Xylenes ND 30 89.7 86.3 3.79 90 90 0 70 130 ' %SS: 94.6 10 105 I06 0.557 100 100 0 70 130 All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions: ' NONE lie 1 1 ' 1 ' MS=Matrix Spike;MSD=Matrix Spike Dupiicate;LCS=Laboratory Control Sample;LCSD=Laboratory Control Sample Duplicate;RPD=Relative Percent Deviation. %Recovery=100*(MS-Sample)/(Amount Spiked);RPD=100*(MS- MSD)/((MS+MSD)12). MS I MSD spike rocoverfes and I 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 significant concentrations of analyte relative to the amount spiked,or b)the spiked sample's matrix interferes with the spike recovery. £TPH(btex)=sum of BTEX areas from the FID. ' #cluttered chromatogram;sample peak coelutes with surrogate peak. NIA=not applicable or not enough sample to perform matrix spike and matrix spike duplicate. 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 ' analLne content. DHS Certification No. 1644 �QA/QC Officer I