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I 10 2nd Avenue South,#D7 Pacheco,CA 94553-5560 McCampbell Analytical, Inc. Telephone 925-'798-1620 Fax 925-798-1622 Webs itt www mccampbell com E-mail mamQmccampbell cam t. QC SUMMARY REPORT FOR SW8021B/8015Cm W O Sample Matrix Air QC Matrix Water WorkOrder 0410450 EPA Method SW8021BI8015Cm Extraction SW5030B BatchlD 13754 Spiked Sample ID 0490452-O01B Sample Spiked MS' MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Catena Analyte ' pg/L pg/L % Rec % Rec %RPD % Rec %Rec % RPD Low Fltgh i TPH(btex)£ ND 60 806 101 227 83 9 945 0 691 70 130 MTBE ND 10 99 873 125 109 108 1 14 70 130 Benzene ND 10 100 995 0 963 105 105 0 70 130 Toluene ND 10 96 9 971 0 126 101 100 107 70 130 ' Ethylbenzene ND 10 996 101 127 104 104 0 70 130 i Xylenes ND 30 87 907 4 13 91 3 91 3 0 70 130 %SS 115 10 106 105 101 106 106 0 70 130 All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions ' NONE lie I 1 ' MS=Matrix Spike,MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent Deviation %Recovery=100"(MS-Sample)I(Amount Spiked) RPD=100.(MS- MSD)I((MS+MSD)12) MS I MSD spike recoveries and I or%RPD may fall outside of laboratory acceptance criteria due to one or more o1 the following reasons a)the sample is inhomogenous AND contains significant concentrations of analyte relative to the amount spiked,or b)the spiked sample's matrix interferes with the spike recovery £TPH(btex)=sum of BTEX areas from the FID ' #cluttered chromatogram sample peak coelutes with surrogate peak NIA=not enough sample to perform matrix spike and matrix spike duplicate NR=analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix of sample diluted due to high matrix or lanalyte content DHS Certification No 1644 QA/QC Officer