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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798 1622 <br />' http/Iwww mccainpbell com E-mail mam@mccampbell coin <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> t <br /> Matrix W WorkOrder 0304379 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 6686 Spiked Sample ID 0304379-001A <br /> Compound <br /> Sample Spiked MS* MSD* MS-MSD LCS LCSD RLCS-LCSD Acceptance Criteria(%) <br /> � -- <br /> Ng/L pglL % Rec %Rec %RPD %Rec % Rec %RPD Low High <br /> TPH(btex)E ND 60 995 100 0 556 989 lOD 127 80 120 <br /> MTBE ND 10 967 984 1 72 97 943 286 80 -- 120 <br /> Benzene ND 10 102 103 165 104 102 186 80 120 <br /> Toluene ND 10 104 106 1 69 108 107 0 775 80 120 <br /> ' Ethylbenzene ND 10 102 103 145 106 106 0 80 120 <br /> i <br /> Xylenes ND 30 107 110 3 08 ]to 110 0 80 120 <br /> t %SS 102 100 978 987 0 900 101 102 0 682 80—T 120 <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)I(MS+MSD)*2 <br /> ' *MS and I 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 specsfic 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 /> NIA=not enough sample to perform matnx spike and matrix spike duplicate <br /> ' NR=analyte concentration m sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matnx or <br />