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110 2nd Avenue South ND7 Pacheco CA 94553 5560 <br /> Inc.McCampbell Analytical, Telephone 925 798-1620 Fax 925 798-1622 <br /> Website www mccampbell coin E-mail main@mccampbell coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix A WorkOrder 0401297 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 10092 Spiked Sample 1D NIA <br /> Sample Spiked MS- I MSD" MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L Ng/L % Rec I %Rec j % RPD %Rec %Rec %RPD Low High <br /> TPH(btex)£ N/A 60 N/A N/A N/A 102 99 281 70 130 <br /> - -- T — <br /> MTBE N/A 10 N/A N/A N/A 102 102 0 70 1 130 <br /> Benzene N/A 10 N/A N/A N/A 105 104 1 0 741 70 130 <br /> Toluene N/A 10 N/A N/A N/A 103 999 2 63 70 130 <br /> Ethylbenzene N/A 10 N/A N/A N/A 109 107 I 1 98 70 130 <br /> Xylenes — NIA 30 N/A N/A NIA 100 961 3 74 70 130 <br /> %SS NIA l0 N/A N/A N/A 102 103 0 657 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=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=too"(MS-Sample)/(Amount Spiked) RPD=100'(MS- MSD)/((MS+MSD)12) <br /> MS and I 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 speck sample matrix interferes with spike recovery <br /> £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matnx or exceeds 2x spike amount for waler matrix or sample diluted due to high matrix or <br /> analyte content <br /> DHS Certification No 1644 QA/QC Officer <br />