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VDataVal, Inc. <br /> DATA REVIEW CHECKLIST BY ANALYSIS METHOD <br /> Project Name: Stockton Redevelopment' Performed by/Date: DJB 6/20/00 <br /> Report No.: 145268 ' <br /> Review Level: II Reviewed by/Date: <br /> Laboratory Name: Curtis & Tom kins <br /> No. and Type of Samples: <br /> Analysis/Method: O(d <br /> �1. Date received and collected on COC matches Form I. <br /> L,-,2Matrix listed on COC matches Form I, with appropriate units and detection <br /> limits. <br /> (,,310 Sample preservative listed on COC is appropriate for method (aqueous <br /> samples only). <br /> C-'OJA Detection limits on Form I within workplan limits. <br /> 5. Holding times for prep and analysis are met. <br /> v6. Form I is present for all samples and analyses. <br /> V7. Method blank results included for all dates of analysis and dates of <br /> preparation (if applicable). <br /> v8.-Wurrogate recoveries for samples and QC are included for all organic <br /> analyses. <br /> 1,A.b ASurrogate recoveries meet laboratory/project acceptance criteria for all <br /> samples. <br /> �/ O.L4, Matrix Spike/Matrix Spike Duplicate recoveries and RPD are included for <br /> all analyses. <br /> L-1 11t Matrix Spike/Matrix Spike Duplicate recoveries meet laboratory/project <br /> CC acceptance criteria. <br /> ✓12.JDuplicate sample results are included for all metals/general chemistry <br /> analyses. <br /> L-I Duplicate sample results meet laboratory/project acceptance criteria. <br /> V4Laboratory Control Sample recoveries are included for all analyses. <br /> &A'5. , Laboratory Control Sample recoveries meet laboratory/project acceptance <br /> criteria. <br /> Missing Items/Comments/Qualifications: <br /> V <br /> 77 Dominican Drive • San Rafael, CA 94901 • (415) 459-3124 • Fax (415)459-6580 <br />