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' 110 2nd Avenue South,#D7 Pacheco CA 44553-5560 <br /> McCampbell Analytical Inc Telephonc 925-798-1620 Pax 925-798-1622 <br /> http/Iwww mccampbell com E-mail matn@mccamphell com <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br /> Matrix W WorkOrder 0303424 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 6308 Spiked Sample ID 0303425-003A <br /> Sample Spiked MS* MSD` MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> ' Ng/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 110 115 496 111 114 231 80 120 <br /> MTBE PND1) <br /> D 10 977 102 461 100 105 447 80 120 <br /> ' Benzene D 10 96 934 276 928 102 994 80 120 <br /> Toluene 10 918 868 5 59 874 913 t43j 80 120 <br /> Ethylbenzene ND 10 98 95 8 230 93 6 102 80 120 <br /> Xylenes ND 30 93 3 923 1O8 887 933 80 120 <br /> ' °/osS 960 100 973 96 134 952 938 152 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 /> 1 <br /> MS=Matrix Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> ' <br /> Devotion <br /> NIA=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 /> ' %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 BPDs near 0%if a)the sample is inhomogenous AND contains significant concentrations of <br /> ana to relative to the amount spiked,or b)if that speutic sample matrix interferes with spike recovery <br />