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110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical TileTelephone 925-798 1620 Fax 925-798-1622 <br /> h //www MCCUW <br /> bell corn 1 mad main mccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matnx W WorkOrder 0300497 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 7495 Spiked Sample ID 0306498-0046 <br /> rND; <br /> Spiked MS` MSD` MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> lig1L % Rec % Rec % RPD %Rec % Rec %RPD Low High <br /> TPH(btex)£ 60 107 109 142 111 110 0 140 70 130 <br /> MTBE ND 10 102 993 232 101 101 0 70 130 <br /> tBenzene ND 10 107 104 2 15 104 105 0 288 70 130 <br /> Toluene ND 10 98 7 964 230 95 5 E97 9 2 41 70 130 <br /> Ethylbenzene ND 10 106 107 0 504 104 105 1 12 70 130 <br /> Xylenes ND 30 100 100 0 95 7 100 443 70 130 <br />' %SS 100 100 104 103 0 409 101 101 0 70 130 <br /> All target compounds to 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 /> Deviation <br /> %Recovery=100•(MS-Sample)/(Amount Spiked) RPD=100'(MS—MSD)/(MS+MSD)'2 <br /> MS and/or MSO spike fecovenes may not be near 100%or the RADS 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 /> #cluttered chromatogram sample peak coelules with surrogate peak <br /> N/A=not enough sample to perform matrix spike and matnx 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 />