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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 DS <br /> Report No.: 145169 -- <br /> Review Level: II — Reviewed by/Date: <br /> Laboratory Name: Curtis & Tompkins <br /> No. and Type of Samples: 6W +a05 <br /> Analysis/Method: PH - EKbca.�-�i)oU25 /931SM <br /> V1. 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 /> Ij3. t4ASample preservative listed on COC is appropriate for method (aqueous <br /> samples only). <br /> V4.1 ADetection limits on Form I within workplan limits. <br /> ✓5. Holding times for prep and analysis are met. <br /> t/6. Form I is present for all samples and analyses. <br /> tel. Method blank results included for all dates of analysis and dates of <br /> preparation (if applicable). <br /> ✓t.L-b 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 /> 0. Matrix Spike/Matrix Spike Duplicate recoveries and RPD are included for <br /> 0.N—all all analyses. <br /> v11.(L.Matrix Spike/Matrix Spike Duplicate recoveries meet laboratory/project <br /> dd acceptance criteria. <br /> V'1'2.NkDuplicate sample results are included for all metals/general chemistry <br /> analyses. <br /> �13NkDuplicate sample results meet laboratory/project acceptance criteria. <br /> 04 Laboratory Control Sample recoveries are included for all analyses. <br /> V15 Laboratory Control Sample recoveries meet laboratory/project acceptance <br /> criteria. <br /> Missing Items/Comments/Qualifications: <br /> Ail I C-04, '/. Sl)s < 20A <br /> N1 CLv '/ D6 6+f- 15 <br /> q �L40, a lie xa�_o sa/. y►e �121 u,. � nL[.S <br /> 108 - — a.0 Ila' ✓ UT IIA- 13 -I. D (OZ-1k, <br /> fo.0 45/. ✓ u:s <br /> _ I1C3--22-Io. 0 55A ✓l.1? <br /> - - <br /> 116- 20- (P.0 IIV, V S- <br /> Ilm- 19 - Coln 151/. ✓S - <br /> Il - Iq- I0 .0 11 '/. ✓ 'S <br /> Ib- 10 . 0 S1�✓1.17' <br /> 77 DWpican Drive - San Rafael, CA 94901 • (415)459-3124 - Fax (415) 459-6580 <br />