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Data Validation Summary <br /> 2870 Gateway Oaks Drive,Suite 300 <br /> Sacramento,CA 95833 <br /> un Telephone-(916)679-2000 <br /> Fax-(916)679-2900 <br /> �. TO: Tony Mindling <br /> FROM: Sacramento QA/QC Group FILE: 17322736.07003 <br /> DATE: May 17,2004 SITE: American Forest Products <br /> �. SUBJECT: Summary of Data Validation for American Forest Products - 1Q04 <br /> STL Project: G4C190401 <br /> A check for data completeness (Completeness Check) was performed by the Sacramento QA/QC Group <br /> on STL Report G4C190401. This report contains analytical data for eleven aqueous samples: DMW-1, <br /> DMW-2, DMW-3, DMW-4, DMW-5, DMW-6, DMW-7, DMW-8, DMW-9, and DMW-70, and TB. <br /> Samples DMW-7 and DMW-70 represent a field duplicate pair. The samples were collected on March <br /> '-' 19, 2004, and submitted to Severn Trent Laboratories, Inc. in West Sacramento, California, for analysis. <br /> The analyses requested include TPH-Diesel (EPA 8015M) and Volatile Organic Compounds including <br /> oxygenates and 1,2-DCA (EPA 8260B). <br /> The data were reviewed in accordance with analytical methods outlined in SW-846. The data were <br /> evaluated based on the following parameters. <br /> ✓ Data Completeness <br /> ✓ Holding Times <br /> �..�' ✓ Blanks <br /> ✓ Laboratory Control Samples <br /> ✓ Matrix Spike/Matrix Spike Duplicates <br /> ✓ System Monitoring Compounds (Surrogates) <br /> i' ✓ Field Duplicates <br /> ✓ Compound Identification and Quantification <br /> The following presents an overview of the Completeness Check: <br /> 0 All analyses were performed as requested on the chain-of-custody record and all holding times were <br /> L. met. <br /> • All associated blanks were free of contamination. <br /> • All Laboratory Control Sample recoveries were within laboratory acceptance limits. <br /> • An assessment of matrix effects can not be made since an MS/MSD analysis was not performed. <br /> • All surrogates are appropriate for their respective methods. All surrogate recoveries were within <br /> laboratory acceptance limits. <br /> La • There were no significant differences between the field duplicate pair,DMW-7 and DMW-70. <br /> • No dilutions were performed. <br /> These data are acceptable and are useable for their intended purpose. <br /> a.. CA01d D Drive\Shared\Report Documents\AmOcan Forest\Sacval AFP 1 Q2004.001 <br />