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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 ZO <br /> Report No.: 145262 <br /> Review Level: 11 Reviewed by/Date: QP <br /> LaboratoryName: Curtis & Tompkins" <br /> No. and Type of Samples: I S - <br /> Analysis/Method: 113TEX, I%n-zl a <br /> ,,1*.�Date received and collected on COC matches Form I. <br /> Matrix listed on COC matches Form I, with appropriate units and detection <br /> "filimits. <br /> ".NA Sample preservative listed on COC is appropriate for method (aqueous <br /> samples only). <br /> ✓4.1LADetection limits on Form I within workplan limits. <br /> ✓5. Holding times for prep and analysis are met. <br /> ,/6. Form I is present for all samples and analyses. <br /> 71i—Method blank results included for all dates of analysis and dates of <br /> ,,,,71i <br /> preparation (if applicable). <br /> v-&L Surrogate recoveries for samples and QC are included for all organic <br /> analyses. <br /> ✓9.�_Surrogate recoveries meet laboratory/project acceptance criteria for all <br /> samples. <br /> ✓ 1 A Matrix Spike/Matrix Spike Duplicate recoveries and RPD are included for <br /> all analyses. <br /> V11&LMatrix Spike/Matrix Spike Duplicate recoveries meet laboratory/project <br /> acceptance criteria. <br /> /21-Duplicate sample results are included for all metals/general chemistry <br /> analyses. <br /> ✓13.n4Duplicate sample results meet laboratory/project acceptance criteria. <br /> ✓14. Laboratory Control Sample recoveries are included for all analyses. <br /> x/15 Laboratory Control Sample recoveries meet laboratory/project acceptance <br /> criteria. <br /> Missing Items/Comments/Qualifications <br /> ✓�I I IGA.L '/ t�� < 2-ol, <br /> 1 1�7'/ <br /> V/ to adaz�d <br /> 77 Dominican Drive • San Rafael, CA 94901 • (415) 459-3124 • Fax (415)459-6580 <br />