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I 10 2nd Avenue South #D7 Pacheco CA 94553 5550 <br />' McCampbell Analytical, Inc. Telephone 925-790-1620 Fax 925 798-1622 <br /> Website www mccarripbell corn E mail main@mccampbell corn <br /> QC SUMMARY REPORT FOR SW8260B <br /> W O Sample Matrix Water QC Matrix Water WorkOrder 0502287 <br />' EPA Method SW8260B Extraction SW5030B BatchlD 15091 Spiked Sample ID 0502283-003A <br /> Analyte Sample Spiked MS' MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) <br />' <br /> Ng/L pg/L % Rec % Rec %RPD % Rec %Rec % RPD MS/MSD LCS!LCSD <br /> tert-Amyl methyl ether(TAME) ND 10 855 957 0 186 824 826 0 143 70-130 70-130 <br />' t-Butyl alcohol(TSA) ND 50 93 922 0 806 923 94 1 79 70-130 70-130 <br /> Dnsopropyl ether(DIPE) ND 10 995 100 0 551 957 962 0 558 70- 130 70- 130 <br />' Ethyl tert-butyl ether(ETRE) ND 10 979 981 0 279 954 942 1 23 70-130 70-130 <br /> Methyl-t-butyl ether(MTBE) ND 10 997 101 103 948 936 1 27 70-130 70- 130 <br /> A'llsta.'rget <br /> 106 l0 105 105 0 102 102 0 70-130 70-130 <br /> compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> I <br /> i� <br /> I <br /> I <br /> I <br /> 1 <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/MSD spike recoveries and/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 contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample's matrix interferes with the 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 /> DHS Certification No 1644 QA/QC Officer <br />