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110 2nd Avenue South iVD7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798 1620 Fax 925-798-1622 <br />' httpJiwww mccampb0l cam E-mail marripmccarripbell corn <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> 1 <br /> Matrix W WorkOrder 0207254 <br />' EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 3028 Spiked Sample ID 0207250-001A <br /> Sample Spiked MS" MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%} <br />' Compound <br /> }IgIL kg/L %Rec % Rec % RPO % Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 94 954 1 45 106 106 0 339 80 120 <br />' MTBE ND 10 103 113 903 977 943 3 56 80 120 <br /> Benzene ND 10 105 t02 247 114 106 704 80 120 <br /> Toluene ND 10 110 107 240 113 109 391 80 120 <br />' Ethylbenzene ND 10 107 103 352 118 111 6 18 80 120 <br /> Xylenes ND 30 103 103 0 113 113 0 80 120 <br />' %SS 104 100 107 105 108 103 101 l 59 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 /> 1 <br /> MS=Matnx 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 matrix or <br /> analyte content <br /> %Recovery=700'(MSSample)1(Amount Spiked) RPD=100'(MS—MSD)1(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 orb if that specific sample matrix interferes with spike recovery <br />