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CASE NARRATIVE <br /> GC/MS VOLATILE ORGANICS <br /> CAS Lab Reference No D9760 <br /> I RECEIPT <br /> No exceptions were encountered unless a Sample Receipt Exception Report is <br /> attached to the Chain-of-Custody included with this data package <br /> II 14OLDING TIMES ' <br /> A Sample Preparation All holding times were met ' <br /> B Sample Analysis All holding times were met <br /> III METHOD ' <br /> Preparation SW-646 5030A <br /> Cleanup N/A <br /> Analysis SW-846 8260B ' <br /> IV PREPARATION <br /> Due to the level of target analytes, sample D9760016 was prepared by medium ' <br /> level protocol This procedure involves extracting 5 0 grams of soil in <br /> 10 mL of methanol, then analyzing a 100 µL aliquot. in 5 0 mL of water <br /> V ANALYSIS <br /> A Cal-ibration =All acceptance=criteria=were=met ' <br /> B Blanks_-A11_acceptance-criteria=were-met. <br /> C Internal Standards_ All acceptance criteria were met <br /> D Surrogates All acceptance criteria were met <br /> E Spikes All acceptance criteria were met ' <br /> F Samples Due to the level of target analytes and the nature of the <br /> matrix, samples D9760006, D9760008, D9760010, D9760012, and D9760014 ' <br /> were analyzed on a diluted basis Reporting limits have been <br /> adgusted accordingly <br /> 0 <br /> I certify that this data package is in compliance with the terms and conditions ' <br /> agreed to by the client and CAS, Inc , both technically and for completeness, <br /> except for the conditions noted above Release of the data contained in this <br /> hardcopy data package has been authorized by the Laboratory Manager or <br /> designated person, as verified by the following signat e <br /> SIGNED/DATE. / + is p y/x/� Reviewed 0 b <br /> Brian Moore _ <br /> Volatile Organics <br /> Columbia � - _ 5090 Caterpillar Road - - _-~~-- _ -_ - -Phone 530 2 22 <br /> Analytical Services Redding,CA 96003-1412 Fax (530)210 <br />