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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.: 145171 <br /> Review Level: II Reviewed by/Date: <br /> Laboratory Name: Curtis & Tom kips <br /> No. and Type of Samples: 5 -- <br /> Analysis/Method: <br /> Analysis/Method: -WH - ExtrcLc,+CaA 5 (WISH <br /> V'T. Date received and collected on COC matches Form I. <br /> V,2. Matrix listed on COC matches Form I, with appropriate units and detection <br /> limits. <br /> L3:NA Sample preservative listed on COC is appropriate for method (aqueous <br /> samples only). <br /> &,,�.nIA Detection 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 /> Method blank results included for all dates of analysis and dates of <br /> preparation (if applicable). <br /> (,8.1�_Surrogate recoveries for samples and QC are included for all organic <br /> analyses. <br /> V'9U- Surrogate recoveries meet laboratory/project acceptance criteria for all • <br /> as samples. <br /> 10 Matrix Spike/Matrix Spike Duplicate recoveries and RPD are included for <br /> all analyses. <br /> Vf1.IJAMatrix Spike/Matrix Spike Duplicate recoveries meet laboratory/project <br /> acceptance criteria. <br /> L-112.KDuplicate sample results are included for all metals/general chemistry <br /> analyses. <br /> V13. ISA Duplicate sample results meet laboratory/project acceptance criteria. <br /> ✓14. Laboratory Control Sample recoveries are included for all analyses. <br /> v l 5 Laboratory Control Sample recoveries meet laboratory/project acceptance <br /> criteria. <br /> Missing Items/Comments/Qualifications: <br /> (CAJ-S I)a.vv_ '/. RSD < 20'! <br /> All cr—vS Inavz .r n <br /> 77 Dominican Drive • San Rafael, CA 94901 - (415)459-3124 • Fax (415)459-6580 <br />