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110 2nd Avenue South #D7,Pacheco CA 94=162 <br /> McCampbell Analytical Inc Telephone 925-7— P- Fax 925-748 <br /> http Ilwww mcc hell com E-mail main mcc <br /> QC SUMMARY REPORT FOR SW8260B <br />' Matrix W WorkOrder 0305262 <br />' EPA Method SW82608 Extraction SW5030B BatchlD 6938 Spiked Sample ID 0305262-007C <br /> Sample Spiked MS* MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> pg1L }ig/L %Rec % Rec %RPD % Rec %Rec % RPD Low High <br /> Cert-Amyl methyl ether(TAME) ND 10 108 107 0251 101 976 391 70 130 <br /> Methyl-t-butyl ether(MTBE) ND 10 111 109 2 15 107 99 742 70 130 <br /> Dusopropyl ether(DIPE) ND 10 116 115 0 520 115 110 421 70 130 <br /> Ethyl tert-butyl ether(F-TBE) ND 10 106 106 0 103 977 520 70 130 <br />' %SS 1 106 100 104 104 0 962 95 7 0 523 80 130 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> i NONE <br /> i <br /> i <br /> 1 <br /> i <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)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 /> NIA=not enough sample to perform matnx spike and matnx 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 /> Laboratonrextraction solvents such as methyllene chloride and acetone may occasionally appear in the method blank at low levels <br />