ARCHIVED REPORTS_MONITORING WELL INSTALLATION AND BIOSPARGE EVALUATION REPORT

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low McCampbell Analytical, Inc. 1534W0campbescorn Pittsburg,CA 94565-1701 Web:www.mone:8 7-25m E-mail: "When Oualitv Counts" Telephone:877-252-9262 Fax:925-252-9269 QC SUMMARY REPORT FOR E200.7 W.O.Sample Matrix: Water QC Matrix: Water BatchlD: 44687 WorkOrder 0907603 EPA Method E200.7 Extraction E200.7 Spiked Sample ID: 0907485-001D ' Analyte Sample Spiked I MS I MSD MS-MSD I LCS I LCSD LCS-LCSD Acceptance Criteria(%) Ng/L Ng/L I%Rec.I%Rec. %RPD %Rec. %Rec. %RPD I MS/MSD RPD LCS/LCSD RPD ' Iron NO 1000 84.4 1 85 0.673 90.6 92.7 1 2.3370- 130 20 85- I IS 20 96 750 97 100 2.84 92 93 1.03 70- 130 30 70 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 44687 SUMMARY Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed 0907603-OOIG 07/22/09 2:20 PM 07/22/09 07/23/09 6:48 PM 0907603-002G 07/22/09 1:25 PM 07/22/09 07/23/09 6:50 PM ' 0907603-003G 07/22/09 12:10 PM 07/22/09 07/23/09 6:52 PM 0907603-004G 07/22/09 10:20 AM 07/22/09 07/23/09 6:55 PM 0907603-005G 07/22/09 4:00 PM 07/22/09 07/23/09 6:57 PM 1 MS=Matnx 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)I((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 applicable to this method. 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 1644 QA/QC Officer