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f - 110 2nd Avenue South #D7 Pacheco CA 9455'-5560 <br /> McCampbell Analytical, Inc. Telephone 925-798 1620 Fax 925 798 1622 <br /> Website www mceainpbell coin E mail mainQmce-impbell cem <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0405225 <br /> BPA Method SW8021B18015Cm Extraction SW5030B BatchlD 11543 Spiked Sample ID 0405228-001A <br /> Sample Spiked MS' MSD' 'MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> - pg/L -pg1L % Rec %Rec %RPD %Rec %Rec % RPD Low High <br /> TPH(btex)e ND 60 103 103 1 0 102 973 427 70 130 <br /> MTBE ND 10 102 105 237 101 101 0 70 130 <br /> Benzene ND 10 112 114 1 42 113 110 271 70 130 <br /> Toluene ND 10 108 107 0 391 113 105 6 78 70 130 <br /> 3 - <br /> Ethylbenzene ND 10 112 115 2 10 116 110 5 39 70 130 <br /> Xylenes ND 30 100 107 I 645 107 100 645 70 130 <br /> — - I <br /> %SS 995 10 103 102 I 127 102 102 0 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 /> NOME <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)12) <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 /> £TPti(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 matnx or sample diluted due to high matrix of <br /> analyte content <br /> DHS Certification No 1644 i�WQA/QC Officer <br />