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110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> =McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925-798-1622 <br /> Website www mccdmpbelleom E-marl imui c@anccarripbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder- 0406242 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 11950 Spiked Sample ID 0406242-005A <br /> Sample Spiked MS' MSD" MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> lig/L pg/L %Rec %Ree %RPD % Rec %Ree %RAD Low High <br /> TPH(btex)C ND 60 98 8 947 424 933 852 228 i 70 130 <br /> MTBE ND 10 941 102 824 808 81 5 0 894 70 130 <br /> Benzene ND 10 105 114 774 854 87 3 227 70 130 <br /> Toluene ND 10 102 108 617 <br /> 878 892 164 70 130 <br /> Ethylbenzene ND 10 106 112 581 90 1 91 3 133 70 130 <br /> Xylenes ND 30 95 963 139 903 94 3 98 70 130 <br /> %SS 101 10 106 111 4.50 94 1 965 262 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 /> 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)I((MS+MSD)/2) <br /> MS and/or MSD spike recoveries may not be near 100%or the BPDs near 0%it a)the sample is inhomogenous AND contains significant concerttrations of <br /> analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> E FPH(btex)=sum of BTEX 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 />