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MIX= bell Analytical, Inc. 1534 Willow Pass Road,P11o6rg,CA 94565-1701 Web:www.mccampbell.com E-mail:min@m=mpbell.com "When Dustin,Counts" I Telephone:877-252-9262 Fax:925-252-9269 QC SUMMARY REPORT FOR SW8260B W.O.Sample Matrix: Soil QC Matrix: Soil WorkOrder: 0710257 EPA Method SW8260B Extraction SW5030B BatchlD:31133 Spiked Sample ID: 0710198-004A Analyte Sample Spiked MS MSD MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) r mg/Kg mg/Kg % Rec. %Rec. %RPD %Rec. %Rec. %RPD MS/MSD RPD LCS/LCSD RPD tort-Amy]methyl ether TAME NO 0.050 92.1 91.3 0.859 90.4 88.2 2.51 70- 130 30 70- 130 30 Benzene NO 0.050 95.9 93.1 2.96 94.5 89.9 4.91 70- 130 30 70- 130 30 r t-Butyl alcohol(TBA) NO 0.25 87.5 90 2.81 86.5 85.5 1.11 70- 130 30 70- 130 30 Chlorobenzene ND 0.050 109 106 2.79 111 110 0.781 70- 130 30 70- 130 30 1,2-Dibromoethane EDB ND 0.050 116 114 2.46 113 106 6.10 70- 130 30 70- 130 30 r 1,2-Dichloroethane(1,2-DCA) ND 0.050 92 90.9 1.22 89.5 84.7 5.59 70-130 30 1 70- 130 30 1,1-Dicbloroethene ND 0.050 116 116 0 115 105 9.00 70-130 30 70- 130 30 Diisopropyl ether(DIPE) ND 0.050 102 101 1.56 99.8 94.9 4.98 70- 130 30 70- 130 30 r Ethyl tort-butyl ether(ETBE) ND 0.050 91.3 90 1.50 87.8 82.9 5.73 70- 130 30 70- 130 30 Methyl-t-butyl ether(MTBE) ND 0.050 99.4 98.5 0.926 93.9 87.4 7.21 70- 130 30 70- 130 30 Toluene ND 0.050 96.5 1 92.7 4.02 95.8 90.9 5.25 70- 130 30 70- 130 30 r Trichloroethene ND 0.050 81.1 79.8 1.69 80 74.8 6.71 70-130 30 70- 130 30 %SSI: 93 0.050 97 97 0 93 88 5.38 70-130 30 70- 130 30 %SS2: 80 0.050 101 101 0 99 97 2.66 70- 130 30 70- 130 30 r %SS3: 95 0.050 103 103 0 100 1 101 0.160 70- ]30 30 70- 130 30 All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions: r NONE r BATCH 31133 SUMMARY Sample ID Date Sampled Date Extracted Date Analyzed Sample ID Date Sampled Date Extracted Date Analyzed 0710257-OOIA 10/05/07 12:15 PM 10/05/07 10/06/07 11:14 AM 0710257-OOIA 10/05/07 12:15 PM 10/05/07 10/06/07 11:14 AM 0710257-002A 10/05/07 12:25 PM 10/05/07 10/06/07 12:06 PM 0710257-002A 10/05/07 12:25 PM 10/05/07 10/06/07 12:06 PM r r r 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)/2). MS/MSD spike recoveries and/or%RPD may fall outside of laboratory acceptance criteria due to one or more of 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. r N/A=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 matrix or analyte content. r DHS EL V Certification N° 1644 QA/QC Officer r