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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.: 145154 <br /> Review Level: II Reviewed by/Date: <br /> Laboratory Name: Curtis & Tompkins —No. and Type of Samples: QLO -or As, qR)-foy Pb <br /> Analysis/Method: A wm ic� � Lead /bolo E5 <br /> V1'.Tlimits. <br /> Date received and collected on COC matches Form I. <br /> Matrix listed on COC matches Form I, with appropriate units and detection <br /> `;1 Sample preservative listed on COC is appropriate for method (aqueous <br /> samples only). <br /> ".JADetection limits on Form I within workplan limits. <br /> 1,,5. Holding times for prep and analysis are met. <br /> V6. Form I is present for all samples and analyses. <br /> 1,,-7 Method blank results included for all dates of analysis and dates of <br /> preparation (if applicable). <br /> vt.NWP Surrogate recoveries for samples and QC are included for all organic <br /> analyses. <br /> • 9.NSurrogate recoveries meet laboratory/project acceptance criteria for all <br /> samples. <br /> L/1"O.l Spike/Matrix Spike Duplicate recoveries and RPD are included for <br /> �-Matrix <br /> all analyses. <br /> L,1 1.0 Matrix Spike/Matrix Spike Duplicate recoveries meet laboratory/project <br /> Q acceptance criteria. <br /> V12U Duplicate sample results are included for all metals/general chemistry <br /> analyses. <br /> V'1 3. Duplicate sample results meet laboratory/project acceptance criteria. <br /> V14 Laboratory Control Sample recoveries are included for all analyses. <br /> vf5 Laboratory Control Sample recoveries meet laboratory/project acceptance <br /> criteria. <br /> Missinci Items/Comments/ ualifications: <br /> l <br /> A41 lcys 0,14A ecvs acco - s t <br /> • <br /> 77 Dominican Drive • San Rafael, CA 94901 • (415)459-3124 • Fax (415)459-6580 <br />