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r1102nd Avenue South 4D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798 1620 Fax 925-798-1622 <br /> http I/www mccampbell com E-mail mom mccamphell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0209197 <br /> EPA Method SW8021 Bl8015Cm Extraction SW5030B BatchlD 3956 Spiked Sample ID 0209195-002A <br /> Sample Spiked MS' MSD" MS-MSD` LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound — ------ -- - - <br /> lig/L pg/L % Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 998 983147[L4 <br /> 107 106 0 884 80 120 <br /> MTBE ND 10 928 88 832 882 849 380 80 120 <br /> BenzeneND 10 981 14281 969 978 0 910 80 120 <br /> Toluene ND 10 101 106 4 19 998 100 0 412 80 120 <br /> Ethylbenzene— - ND �10 _ 104 108 3 16- 991 979 1 17 80 j 120 <br /> I <br /> XNlenes - ND 30 103 110- 625 103 -100 328 1 80 120_ <br /> %SS 976 ]00 973 _ 99 5 2 26 997 921 304 80 120 <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 /> M$=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> N/A=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 matrix or sample diluted due to high matnx or <br /> analyte content <br /> I %Recovery=100'(MS Sample)I(Amount Spiked) RPD=100•(MS-MSD)I(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 amounts eked or b tt that specific sample matra interferes with spike recovery <br />