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Data Validation Summary <br /> 2870 Gateway Oaks Drive,Swte 300 <br /> Sacramento,CA 95833 <br /> 1 Telephone—(916)679-2000 <br /> Fax—(916)679-2900 <br /> TO: Tony Mindling <br /> FROM: Sacramento QA/QC Group FILE: 17322736 07003 <br /> DATE: February 2, 2005 SITE: American Forest Products <br /> SUBJECT: Summary of Data Validation for Former American Forest Products Site <br /> Kiff Analytical Project 41738 <br /> This report summarizes the findings of the Completeness Check of ten water samples These <br /> samples were collected December 23, 2004, as part of the Former American Forest Products <br /> Well Monitoring Program The samples were analyzed by Kiff Analytical in Davis, California <br /> The samples were designated DMW-1, DMW-2, DMW-3, DMW-4, DMW-5, DMW-6, <br /> DMW-7, DMW-8, DMW-9, and DMW-70 Samples DMW-7 and DMW-70 represent a field <br /> duplicate pair All samples were analyzed for TPH-Diesel (EPA 8015 — modified) and volatile <br /> organic compounds (EPA 826013) <br /> The data were reviewed in accordance with analytical methods The data were evaluated based <br /> on the following parameters <br /> ✓ Data Completeness <br /> ✓ Holding Times and Preservation <br />' ✓ Blanks <br /> ✓ Laboratory Control Samples <br /> ✓ Matrix Spike/Matnx Spike Duplicates <br /> ✓ System Monitoring Compounds (Surrogates) <br /> ✓ Field Duplicates <br /> ✓ Compound Identification and Quantification <br /> The following presents an overview of the Completeness Check <br />' • All sample vials were received in appropriate condition by the laboratory and the samples <br /> were analyzed as requested on the chain of custody <br /> • All samples were analyzed within holding times <br /> • The method blanks were free of contamination and all LCS and MS recoveries were within <br /> laboratory acceptance limits <br />' + There were no significant differences between the results for field duplicate pair, DMW-7 <br /> and DMW-70 <br />' These data are acceptable in all areas of review and are useable for their intended purpose <br /> F VPRO]is—I� URS\AFPIQUARTE—i1Q4041AFP 4Q04 doe <br />