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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 0-6 <br /> Report No.: 145169 <br /> Review Level: II Reviewed by/Date: <br /> Laboratory Name: Curtis & Tompkins <br /> No. and Type of Samples: ZLS <br /> Analysis/Method: _MH - &cl!!S dl 1 nQ. (EM <br /> tzl. Date received and collected on COC matches Form I. <br /> �2 Matrix listed on COC matches Form I, with appropriate units and detection <br /> limits. <br /> V3 Sample preservative listed on COC is appropriate for method (aqueous <br /> samples only). <br /> ✓4N�Detection limits on Form I within workplan limits. <br /> G-5. Holding times for prep and analysis are met. <br /> L"15. Form I is present for all samples and analyses. <br /> L,-7. Method blank results included for all dates of analysis and dates of <br /> preparation (if applicable). <br /> --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 /> as samples. <br /> O�OLMatrix Spike/Matrix Spike Duplicate recoveries and RPD are included for <br /> pu all analyses. <br /> 6,A-1. <br /> Matrix Spike/Matrix Spike Duplicate recoveries meet laboratory/project <br /> criteria. <br /> E42NLDuplicate sample results are included for all metals/general chemistry <br /> analyses. <br /> V3,Duplicate sample results meet laboratory/project acceptance criteria. <br /> 114 Laboratory Control Sample recoveries are included for all analyses. <br /> of 5. Laboratory Control Sample recoveries meet laboratory/project acceptance <br /> criteria. <br /> Missing Items/Comments/Qualifications: <br /> Alt tCAL '/ RSD < 20 r>o•a9 0 <br /> I I CLVS ':�- 15 Z din A f C-01 WM V\ Aa of 1 y% <br /> 77 Dominican Drive • San Rafael, CA 94901 • (415) 459-3124 • Fax (415)459-6580 <br />