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110 2nd Avenue Soudi,#D7,Pacheco CA 94553 5560 <br /> Inc.McCampbell Analytical, Telephone 925-798-1620 Fax 925 798 1622 <br /> L4 I Website www mccanipbell com E mail main@mccampbcIl com <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> W 0 Sample Matrix Water QC Matrix Water WorkOrder 0412541 <br />' EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 14505 Spiked Sample ID 0412541-019A <br /> Analyte Sample Spiked MS* MSD* MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) <br />' pg1L pgIL % Rec % Ree % RPD % Rec % Rec % RPD MS 1 MSD LCS 1 LCSD <br /> TPl1(btex)£ ND 60 961 975 1 39 91 5 92 1 0 686 70- 130 70-130 <br />' MTBE ND 10 95 3 100 511 934 97 1 392 70-130 70-430 <br /> Benzene ND 10 98 8 103 3 82 103 106 3 07 70- 130 70- 130 <br />' Toluene ND 10 98 7 101 234 97 4 993 1 93 70- 130 70- 130 <br /> Ethylbcnzene ND 10 102 104 237 105 106 1 64 70- 130 70- 130 <br /> Xylenes ND 30 90 3 91 0 735 100 too 0 70- 130 70- 130 <br />' %SS 109 10 1 109 111 201 111 110 0 988 70- 130 1 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 /> 1 <br />' MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Conirol Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> Recovery=100'(MS Sample)I(Amount Spiked) RPD=100'(MS- MSD)I((MS+MSD)12) <br /> MS!MSD spike recoveries and I or%RPD may fall ouMde 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 <br /> recovery <br /> £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=not applicable or not enough sample to perform matnx 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 A (I QA/QC Officer <br />