ARCHIVED REPORTS_PHASE II ENVIRONMENTAL SITE ASSESSMENT

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McCamnbell Analytical. Inc. 1534 Willow Pass Road,Pitaburg,CA 94565-1701 Web:www.mccampbell.00m E-mail:main©mccampbe0.com "When Ouality Counts" I Telephone,877-252-9262 Fax:925-252-9269 • QC SUMMARY REPORT FOR SW8015C W.O.Sample Matrix: Soil QC Matrix: Soil WorkOrder 0805464 EPA Method SW8015C Extraction SW3550C BatchlD: 35695 Spiked Sample ID: 0805433-001A Sample Spiked I MS I MSD MS-MSD LCS LCSD I LCS-LCSD Acceptance Criteria(%) Analyte mg/Kg mg/Kg a/Rec. %Rec. %RPD I%Rec. %Rec. %RPD MS/MSD RPD LCS/LCSD RPD TPH-Diesel(Cl0-C23) 24 20 129 129 0 119 111 7.13 70- 130 30 70- 130 30 %SS: 102 50 103 103 0 112 116 3.49 70- 130 30 70- 130 1 30 All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions: NONE BATCH 35695 SUMMARY Lab ID Date Sampled Dale Extracted Date Analyzed Lab ID Date Sampled Dale Extracted Date Analyzed 0805464-008A 05/16/08 9:35 AM 05/16/08 05/18/08 3:28 AM 0805464-009A 05/16/08 9:40 AM 05/16/08 05/18/08 4:34 AM 0805464-OIOA 05/16/08 10:10 AM 05/16/08 05/18/08 540 AM 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/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. 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 analyle content. DHS ELAP Certification Nc 1644 J2— QA/QC Officer 0