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Inc. 10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> IMcCampbell Analytical, Telephone:925-798-1620 Fax:925-798-1622 <br /> ' Website:www.mccampbell.coni E-mail:main@rnecampbell.com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> W.O. Sample Matrix: Water QC Matrix: Water WorkOrder: 0501265 <br /> ' EPA Method: SW8021B/8015Cm Extraction: SW5030B BatchlD:14744 Spiked Sample ID: 0501263-006B <br /> Analyte Sample Spiked MS* MSD* MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> ' pg/L pg/L %Rec. %Rec. %RPD %o Rec. %Rec. %RPD MS/MSD LCS/LCSD <br /> TPH(btex)£ ND 60 98.4 94.4 4.10 96.3 103 7.05 70-130 70-130 <br /> MTBE ND 10 96.1 91.9 4.46 93.3 101 7.54 70-130 70-130 <br /> Benzene ND 10 102 99.4 2.51 105 102 2.42 70-130 70-130 <br /> Toluene ND 10 102 99.6 2.62 105 104 1.05 70-130 70-130 <br /> Ethylbenzene ND 10 105 101 3.50 108 105 1.99 70-130 70-130 <br /> Xylenes ND 30 107 103 3.17 110 107 3.08 70-130 70-130 <br /> %SS: 106 10 99 102 2.53 103 103 0 70-130 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 /> 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 /> £TPH(btex)=sum of BTEX areas from the FID. <br /> ' #cluttered chromatogram;sample peak coelutes with surrogate peak. <br /> • N/A=not applicable or 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 /> DHS Certification No. 1644 QA/QC Officer <br />