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110 2nd Avenue South #137 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-795-1620 Fax 925-798-1622 <br />' http//wwwmccarupbellcorn E-mail mam a mccampbell coin <br /> • QC SUMMARY REPORT FOR SW8260B <br /> 1 <br /> Matrix W WorkOrder 0304433 <br />' EPA Method SW82608 Extraction SW5030B BatchlD 6721 Spiked Sample ID 0304433-0016 <br /> Sample Spiked MS- MSD" MS-MSO LCS LCSD LCS-LCSD Acceptance Criteria(%) <br />' Compound <br /> pg/L pg/L. % Rec %Rec. % RPD %Rec %Rec % RPD Low Nigh <br /> Benzene 05649 10 942 93 7 0 574 100 964 3 83 70 130 <br />' tert-Amyl methyl ether(TAME) ND I O 999 983 1 66 99 1 949 440 70 130 <br /> Methyl-t-butyl ether(MTBE) 10 12 10 130 128 0 658 105 102 367 70 130 <br />' Toluene ND 10 107 107 0 105 IO2 3 00 70 130 <br /> Dusopropyl ether(DIPS) ND 10 109 109 0 112 108 394 70 130 <br /> Ethyl tert-butyl ether(ET13E) ND 10 976 97 0 603 996 943---753 70 130 <br />' %SS 1 106 100 993 100 0 984 101 100 0 513 70 130 <br /> %SS2 985 100 972 975 0 276 97 I 94 9 229 70 130 <br />' %SS3 104 100 907 949 4 47 972 96 6 0 686 70 130 <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 /> MS=Matrix Spike MSD=Matrix Spike Duplicate,LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <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 re[ative to the amount spiked or b)of that specific sample matrix interferes with spike recovery <br /> N/A=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 /> Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br />