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l 10 2nd Avenue Soulh,#D7,Pacheco,CA 94553-5560 McCampbell Analytical, Inc. Telephone:925-798-1620 Fax:925-798-1622 Website:www.mccampbell.com E-mail:main@2necampbell.cono • QC SUMMARY REPORT FOR SW8021B/8015Cm I Matrix: S WorkOrder: 0403123 ' EPA Method: SW8021BI8015Cm Extraction: SW5030B BatchlD:10640 Spiked Sample ID: 0403106-001A Sample Spiked MS* E MSD' !MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria mglKg mg/Kg % Rec. E %Rec- I %RPD % Rec. % Rec. %RPD Low High j TPH(btex)i� ND 0.60 104 103 0.969 101 102 1.00 70 130 MTBE ND 0-10 93.3 94.4 1.21 103 99.4 3.91 70 130 ' Benzene ND 0.10 106 107 1.32 107 105 2.26 70 130 Toluene ND 0.10 90.3 91.4 1.25 90.7 89.4 1.41 70 130 Ethylbenzene ND 0.10 110 110 0 107 107 0 —70 130 Xylenes ND 0.30 100 100 0 100 100 0 70 130 92.7 0.10 104 ]06 1.90 89.b 87.3 I 2.60 70 130 All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions: I NONE I I MS=Matrix Spike;MSD=Matrix Spike Duplicate:LCS=Laboratory Control Sample;LCSD=Laboratory Control Sample Duplicate;RPD=Relative Percent Deviation. %Recovery=100"(MS-Sample)/(Amount Spiked);RPD=100`(MS- MSD)/((MS+MSD)12). 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 analyte relative to the amount spiked,or b)it that specific sample matrix interferes with 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 or sample diluted due to high matnx or ' analyte content. DHS Certification No. 1644 QA/QC Officer