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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 Ilwww mccampbell com E-mazl miun@uccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0310093 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchiD 8825 Spiked Sample ID 0310083-001A <br /> Sample Spiked MS' MSD" MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br />' pg/L Ng/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)£ ND 60 100 103 224 104 102 187 70 130 <br /> MTBE ND 10 100 966 343 996 102 205 70 130 <br /> Benzene ND 10 106 104 254 103 102 0 891 70 130 <br /> Toluene ND 10 108 105 307 104 103 128 70 130 <br />' Ethylbenzene ND 10 110 106 309 106 105 0 821 70 130 <br /> Xylenes ND 30 110 110 0 1t0 110 0 70 130 <br />' %SS 107 100 104 103 109 101 102 115 70 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method PL with the following exceptions <br />' NONE <br /> lie <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)I(Amount Spiked),RPD=100'(MS—MSD)/(MS+MSD)'2 <br />' 'MS and/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 />' #cluttered chromatogram sample peak coelutes with surrogate peak. <br /> NIA=not enough sample to perform matrix 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 />