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u �a <br /> 110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> Inc.McCampbell Analytical, ITelephone 925 798-1620 Fax 925 798 1622 <br /> Website www mccampbell conn E mail n,am@j-nccampbell con, <br /> • QC SUMMARY REPORT FOR SW8260B <br /> W O Sample Matrix Water QC Matrix Water WorkOrder 0412540 <br /> EPA Method SWB260B Extraction SW5030B BatchlD 14494 Spiked Sample 1D 0412524-003B <br /> Sample SpikedH%R <br /> MSD" MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Analyte <br /> NgIL NglL % Rec % RPD %Rec %Rec %RPD MS 1 MSD LCS 1 LCSD <br /> Methyl-t-butyl ether(MTBE) ND 10 101 973 3 53 91 1 94 1 323 70- 130 70- 130 <br /> %SSI 104 10 103 102 0 685 98 101 3 61 70- 130 70- 130 <br /> All tai get 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)1(Amount Spiked) RPD=100*(MS- MSD)1((MS+MSD)1 2) <br /> MS!MSD spike recoveries and 1 or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is <br /> inhomogenous AND contwns significant concentrations of analyte relative to the amount spiked or b)the spiked sample s matrix interferes with the spike recovery <br /> NIA=not enough sample to perform matrix spike and malnx spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matnx 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 methyfene chloride and acetone may occasionally appear in the method blank at law Levels <br /> X0A/QC0ffjcer <br /> DHS Certification No 1644 <br />