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i 110 2nd Avenue South #D7 Pacheco CA 94553 5560 McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925-798-1622 Website www mecampbell com H-maii TnA1JJ@,nCL-unpbell corn QC SUMMARY REPORT FOR SW8021B/8015Cm Matrix W WorkOrder 0409206 EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 13141 Spiked Sample ID 0409206-006A Analyte Sample Spiked MS* MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria pg/L pg/L % Rec % Rec %RPD % Rec % Rec % RPD Low High TPH(btex)£ ND 60 98 976 0 393 989 947 435 70 130 MTBE ND 10 973 902 759 922 893 325 70 130 Benzene ND 10 98 5 914 7 55 98 8 95 3 94 70 130 Toluene ND 10 94 6 87 835 922 89 3 58 70 130 Ethylbenzene ND 10 101 936 779 1 97 9 93 5 17 70 130 Xylenes ND 30 95 857 103 89 7 85 534 70 130 I %SS 109 10 98 99 0 978 102 103 1 10 70 130 All target compounds in the Method Blank ofthis extraction batch were ND less than the method RL wah the following exceptions NONE MS=Matrix Spike,MSO=Matrix Spike Duplicate,LOS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate,RPD=Relative Percent Deviation %Recovery=100*(MS-Sample)I(Amount Spiked) RPD=100'(MS- MSD)I((MS+MSD)12) *MS/MSD spike recoveries 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 STEX 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 sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or anal a content DHS Certification No 1644 QA/QC Officer