ARCHIVED REPORTS_PHASE II ENVIRONMENTAL SITE ASSESSMENT

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McCamnbell Analytical, Inc. 1534 Wine.Pass Road,Pittsburg,CA 94565-1701 Web:www.mc pbell.com E-mail:main@mccampbell.com "When Ouality Counts" I Telephone,877-252-9262 Fax:925-252-9269 • QC SUMMARY REPORT FOR SW8082A W,O.Sample Matrix: Water OC Matrix: Water WorkOrder: 0805464 EPA Method SW8082A Extraction SW3510C BatchlD: 35644 Spiked Sample ID: N/A Analyte Sample Spiked MS MSD MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) pg/L pg/L %Rec. % Rec. %RPD % Rec. % Rec. %RPD MS/MSD RPD LCS/LCSD RPD AToclor1260 N/A 3.75 N/A N/A N/A 88.2 91.2 3.36 N/A N/A 70- 13020 %SS: N/A 2.5 N/A N/A N/A 114 108 5.64 N/A N/A 70- 130 30 All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the fallowing exceptions: NONE BATCH 35644 SUMMARY Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed 0805464-OTIC 05/16/08 10:45 AM 05/16/08 05/20/08 5:02 PM 0805464-012C 05/16/08 11:15 AM 05/16/08 05/20/08 4:06 PM 0805464-013C 05/16/08 11:30 AM 05/16/08 05/18/08 7:02 AM 0805464-014C 05/16/08 11:45 AM 05/16/08 05/18/08 8:53 AM 0 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. 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. DHS ELAP Certification No 1644 JVI_ QA/QC Officer 0