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" MCCamDbell Analytical Inc1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> s Web:www.mccmnPboJl.c. E-mail:mainr@mccampbell.com <br /> "When Duality Counts" Telephonic 877-252-9262 Fax 925-252-9269 <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> W.O.Sample Matrix: Water QC Matrix: Water WorkOrder 0805420 <br /> EPA Method SW6021BI8015Cm Extraction SW5030B BatchlD: 35669 Spiked Sample ID: 0805410.005A <br /> Analyte Sample =MS-MSD <br /> MS-MSD Spiked MS MSLCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L % Rec. %Rec. %RPD % Rec. %Rec. %RPD MS/MSD RPD I LCS/LCSD RPD <br /> TPH(btex5 ND 60 99.6 105 5.53 103 106 2.78 70- 130 20 1 70- 130 20 <br /> MTBE ND 10 92.8 98.3 5.70 95.8 99.7 3.93 70- 130 20 1 70- 130 20 <br /> Benzene ND 10 88.5 94.8 6.83 91.6 95 3.64 70- 130 20 70- 130 20 <br /> Toluene ND 1 10 87.8 93.5 6.29 90.4 93.3 3.18 70- 130 20 70- 130 20 <br /> Eth (benzene ND 10 92.2 97.7 5.83 94.7 97.6 3.01 70- 130 20 70- 130 20 <br /> Xylenes ND 30 102 109 5.92 105 108 2.68 70- 130 20 70- 130 20 <br /> %SS: 106 10 90 91 0.715 91 91 0 70- 130 20 70- 130 20 <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 /> BATCH 35669 SUMMARY <br /> Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed <br /> 0805420-014A 05/15/08 2:50 PM 05/16/08 05/16/08 9:30 PM 0805420-015A 05/15/08 3:00 PM 05/16/08 05/16/08 10:03 PM <br /> 0805420-016A 05/15/08 3:15 PM 05/16/08 05/16/08 10:36 PM 0805420-017A 05/15/08 3:35 PM 05/16/08 05/16/08 11:09 PM <br /> 0805420-018A 05/15/08 3:50 PM 05/16/08 05/16/08 11:42 PM 0805420-019A 05/15/08 4:10 PM 05/17/08 05/17/08 1: AM <br /> • <br /> MS=Matrix Spike;MSD=Matrix Spike Duplicate;LCS=Laboratory Control Sample;LCSD=Laboratory Control Sample Duplicate;RPD=Relative Percent 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 inhomogenous AND <br /> 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 enough sample to perform matrix spike and matrix spike duplicate. <br /> R=matrix interference and/or analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high <br /> tdx or analyle content,or inconsistency in sample containers. <br /> DHS ELAP Certification No 1644 QA/QC Officer <br />