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I <br /> 110 2nd Avenue South,#b7,Pacheco CA 34553 5560 <br /> Inc.McCampbell Analytical, Telephone 925-798-1620 Fax 925-798-1622 <br /> Website www rnccairipbellcorn E-mail nxnn@niccampbell cam <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> I <br /> Matrix W WorkOrder 0406264 <br /> EPA Method SW8021B18015Cm Extraction SW5030B Batch[D 11979 Spiked Sample ID 0406264-015A <br /> Sample Spiked MS' I MSD' MS-MSD' LCS LCSD ILCS-LCSD Acceptance Criteria(%) <br />' pg/L pglL %Rec % Rec %RPD %Rec % Rec % RPD Low High <br /> TPH(btex)£ ND 60 947 966 202 973 96 1 1 25 70 130 <br /> MTBE ND 14 100 103 258 112 101 106 70 130 <br /> Benzene ND 10 106 109 2 12 110 105 487 70 130 <br /> Toluene ND 10 984 102 339 104 98 6 522 70 130 <br />' Ethylbenzene ND 10 107 107 0 108 104 3 58 70 130 <br /> Xylenes ND 30 953 95 0 350 95 3 91 3 429 70 130 <br />' %SS 108 10 107 107 0 106 104 145 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 /> I NONE <br /> lie <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)I(Amount Spiked) RPD=100•(MS- MSD)/((MS+MSD)12) <br /> MS and/or MSD spike recoveries may not to 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 /> £TPH(btex)=sum of STEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=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 />