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i 110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> Eho McCamlpbell Analytical Inc Telephone 925-798-1620 Fax 925 798 1622 <br /> http//www mccampbell corn E-mail mai rQmccampbell corn <br /> QC SUMMARY REPORT FOR SW8021BI8015Cm <br /> t <br /> Matrix W WorkOrder 0211196 <br /> ' EPA Method SW8021 B/8015Cm Extraction SW50308 BatchlD 4862 Spiked Sample ID 0211207-003A <br /> Sample Spiked MS* MSD" MS-MSD* LCS I LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> pg/L. pg/L %Rec % Rec %RPD %Rec % Rec I %RPD Low High <br /> TPH(gas) ND 60 95 94 102 103 101 198 80 120 <br /> ' MTBE ND 10 862 889 301 852 81 I 509 80 120 <br /> Benzene ND 10 905 93 4 3 13 89 84 9 471 80 120 <br /> Toluene ND 10 961 98 2 2 19 939 897 4 55 I 80 120 <br /> ' Ethylbenzene ND 10 98 100 241 953 906 106 80 120 <br /> Xylenes ND 30 99 997 0 671 95 94 l 06 80 120 <br /> %SS 103 100 978 981 0 309 89 868 2 53 80 120 <br /> t <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 /> 1 <br /> MS=Matrix Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> NIA=not enough sample to perform mama spike and matnx spike duplicate <br /> NR=anayte 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 <br /> analyte content <br /> ' %Recovery=100"(MS Sample)/(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 spectfic sample matrix interferes with spike recovery <br />