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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 />' h J/www mcc bell com E-mail main mccampbellcom <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0307008 <br />' EPA Method SW80211318015Cm Extraction SW5030B BatchlD 7644 Spiked Sample ID 0307008-019A <br /> Sample Spiked MS* MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Cntena(%) <br />' pg/L pg/L % Rec % Rec % RPI? % Rec %Rec %RPD Low High <br /> TPH(btex)£ ND 60 101 994 1 39 100 101 0 951 70 130 <br />' MTBE ND 10 964 966 0 301 991 993 0 198 70 130 <br /> Benzene ND 10 100 997 0 745 103 103 0 70 130 <br /> Toluene ND 10 102 101 0 939 103 103 0 70 130 <br />' Ethylbenzene ND 10 103 101 1 62 105 105 0 70 130 <br /> Xylencs ND 30 103 103 0 107 107 0 70 130 <br />' %SS 105 100 103 I03 0 103 104 0 550 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 /> I <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> I Deviation <br /> %Recovery=100•(MS-Sample)/(Amount Spiked) RPD=100*(MS—MSD)/(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 specific sample matrix interferes with spike recovery <br /> • £TPH(btex)=sum of BTEX areas from the FID <br /> f #cluttered chromatogram sample peak coelutes with surrogate peak <br /> INIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matnx or sample diluted due to high matrix or <br /> analyte content <br />