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McCampbell Analytical, Inc. 1534 Willow Pass Road,Pittsburg,CA 94565-1701 l"s Web:www.mccampbe0.com E-mail:main@mccampbeLLcom "When Oualim Counts" Telephone:877-252-9262 fax:925-252-9269 QC SUMMARY REPORT FOR SW8260B W.O.Sample Matrix: Soil OC Matrix: Solid WorkOrder 0805110 EPA Method SW8260B Extraction SW1311 BatchlD: 35335 Spiked Sample ID: NIA Analyte Sample Spiked MS MSD MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) mg/L mg/L %Rec. %Rec. %RPD %Red. %Rec. %RPD MS/MSD RPD LCS/LCSD RPD tert-Amyl methyl ether(TAME) N/A 0.010 N/A N/A N/A 103 103 0 N/A N/A 70- 130 20 Benzene N/A 0.010 N/A N/A N/A 106 109 2.95 N/A N/A 70- 130 20 t-Butyl alcohol(TBA) N/A 0.050 N/A N/A N/A 70.6 79 11.2 N/A N/A 70- 130 20 Chlorobenzene N/A 0.010 N/A N/A N/A 98.9 102 3.14 N/A N/A 70- 130 20 1,2-Dibromoethane(EDB) N/A 0.010 N/A N/A N/A 99.2 102 2.73 N/A N/A 70- 130 20 1,2-Dichloroethane 1,2-DCA N/A 0.010 N/A N/A N/A 120 123 2.50 N/A N/A 70- 130 20 1,1-Dichloroethene N/A 0.010 N/A N/A N/A 96.9 98.5 L65 N/A N/A 70- 130 20 Diisopropyl ether(DIPE) N/A 0.010 N/A N/A N/A 94.1 97.6 3.67 N/A N/A 70- 130 20 Ethyl tert-butyl ether(ETBE) N/A 0.010 N/A N/A N/A 105 109 2.99 N/A N/A 70- 130 20 Methyl-t-butyl ether(MTBE) N/A 0.010 N/A N/A N/A 113 118 3.87 N/A N/A 70- 130 20 Toluene N/A 0.010 N/A N/A N/A 88.4 89.7 1 1.45 1 N/A N/A 1 70-130 20 Trichloroethene N/A 0.010 N/A N/A N/A 95.7 97.8 1 2.17 N/A N/A 70- 130 20 %SSI: N/A 0.010 N/A N/A N/A 103 103 0 N/A N/A 70- 130 30 %SS2: N/A O.OIO N/A N/AN/A 98 98 0 N/A N/A 70-130 30 %SS3: N/A 0.010 N/A N/A N/A 91 90 0.787 1 N/A N/A 70- 130 30 All target compounds in the Method Blank of this extraction batch were ND less than the method ILL with the following exceptions: NONE BATCH 35335 SUMMARY Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed 0805110-OOIA 05/05/08 2:00 PM 05/05/08 05/10/08 5:59 PM 0805110-002A 05/05/08 2:00 PM 05/05/08 05/10/08 6:41 PM 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)/((M5-MSD)/3). MS/MSD spike recoveries and I or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons:a)the sample is inhomagenous AND contains significant concentrations of analyte relative to the amount spiked,or b)the spiked sample's matrix Interferes with the spike recovery. 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 matrix or analyte content. Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels. DHS ELAP Certification No 1644 J2— QA/QC Officer