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(COLUMBIA AWAINTICAL SERVICES,IWC <br /> • <br /> ItClkent Applied Earth Sciences,Incorporated !ServiceRequest We. 'X0400795 <br /> �Prolect {Canteen Corp /Project#AGE NC99-�0612 Watedteceived August I7,2004 <br /> 'Sample Matriz Water <br /> ICASE NARRATIVE <br /> All analyses were (performed consistent vvnth the quality assurance program� of Columbia Analytical <br /> Services, .Inc (CAS) This report contains analytical aesults for samples designated for Tier Il data <br /> deliverables When appropriate to the method, method blank results have been reported with each <br /> analytical test Surrogate recoveries have been reported for.all applicable organic analyses Additional <br /> quality control analyses reported herem include Mat udDuphcatte Matrix Spike (MS/DMS), and <br /> Laboratory/Duphcate Laboratory�Control Sample(LCS/DLCS) <br /> Sample Receipt <br /> IThe samples were received for analysis at Columbia Analytical Services on August 17, 2004 No <br /> discrepancies were noted upon initial sample inspection Amy exceptions would be noted on-the cooler <br />' • receipt and preservation form included in this data package The samples were received in good condition <br /> and consistent with the accompanying chain of custody form The samples were stored at 4°C upon receipt <br /> at the laboratory <br /> Volatile Organic Compounds ley-„EPA Method 8260B <br /> I Samples MW-3/081604 (X0400795-001)and MW-3A/081604 (X0400795-002)required dilution of <br /> Methyl tert-Butyl Ether due to lugh concentration of target analyte These dilutions were performed after <br /> the 14 day method holding time had expired <br /> ISample MW-11/081604 (X0400795-006)required dilution of 1,2-DncWoroethane due to high <br /> concentration of target analyte This dilution was performed after the 14 day method holdmg time had <br /> expired <br /> ISurrogate recovery for 4-Bromofluorobenzene was below laboratory and method acceptance limits for <br /> sample Trip Blank (X0400795-007) Unable to confirm matrix effect <br /> Matrix spike (XWG0400953-1 and XWG0400953-2)recovery for Methyl tert-Butyl Ether was high The <br /> accuracy of the spike recovery value is reduced since the analyte concentration in the sample is <br /> disproportionate to spike level The method control sample recovery was acceptable <br /> I MS/DMS (XWG0400953-1 and XWG0400953-2) RPD for several compounds exceeded the method <br /> control limit Recovery met acceptance criteria <br /> Approved by _ ` Date %"� <br />