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110 2nd Avenue South #D7,Pacheco CA 94553-5560 <br /> E&-4McCar pbell Analytical Inc i Telephone 925-798-1624 Fax 925-798 1622 <br /> hap I/wvww mccampbell com E mail mam[igmccampboll coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0304246 <br /> EPA Method SW8021 B/8015Cm Extraction SW50308 BatchlD 6578 Spiked Sample lD 0304246-O01A <br /> Sample Spiked MS" MSD" MS-MSD-1 LCS LCSD ILCS-LCSD Acceptance Criteria(%) <br /> Compound I i <br /> pg/L pg/L %Rec %Rec I % RPD j %Rec %Rec I %RPD i Low 1 High <br /> TPH(gas) ND 60 103 101 1 17 100 103 326 80 120 <br /> MTBE ND to t03 914 123 107 104 256 80 120 <br /> Benzene ND 10 99 6 976 206 99 1 95 8 340 80 120 <br /> Toluene ND 10 103 102 102 101 994 141 80 120 <br /> Ethylbenzene ND 10 103 102 109 102 995 255 80 120 <br /> Xylenes ND 30 110 Ito 0 107 107 0 80 120 <br /> %SS 101 100 987 987 00452 983 966 180 80 120 <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 /> MS=Matrsx Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <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 /> %Recovery=100"(MS Sample)I(Amount Spiked),RPD=100'(MS—MSD)1(MS+MSD)'2 <br /> `MS and 1 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 />