ARCHIVED REPORTS_PHASE II ENVIRONMENTAL SITE ASSESSMENT

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McCamnbell Analytical. Inc. 1534 Willow,Pass Road,Pittsburg,CA 94565-1701 Web:www.m=mpbeli.com E-mail:main@mcoampbell.com When Ouality Counts' I Telephone:877-252-9262 Fax:925-252-9269 • QC SUMMARY REPORT FOR SW8082A W.O.Sample Matrix: Soil OC Matrix: Soil WorkOrder 0805420 EPA Method SW8082A Extraction SW3550C BatchlD: 35642 Spiked Sample ID: 0805377-001A Analyte Sample Spiked MS I MSD MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) mglkg mg/kg a/Rec. %Rec. %RPD % Rec. %Rec. %RPD IMS/MSD RPD LCS/LCSD RPD Aroclor1260 ND<l.2 0.075 NR NR NR 123 124 0.532 70- 130 20 70- 130 20 %SS: 113 0.050 102 105 3.30 97 97 0 70- 130 20 70- 130 20 All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions: NONE BATCH 35642 SUMMARY Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed 0805420-OOIA - 05/15/08 10:15 AM 05/15/08 05/21/08 8:45 PM 0805420-002A 05/15/08 10:25 AM 05/15/08 05/21/08 9:40 PM 0805420-003A 05/15/08 10:30 AM 05/15/08 05/20/08 4:09 AM 0805420-004A 05/15/08 10:45 AM 05/15/08 05/20/08 5:03 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)/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 J12— QA/QC Officer 0