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cbCurtis&Tompkins.Ltd. <br /> CASE NARRATIVE <br /> Laboratory number: 211070 <br /> Client : Technical Studies, Inc. <br /> Location: Valero <br /> Request Date: 03/31/09 <br /> Samples Received: 03/31/09 <br /> This data package contains sample and QC results for five soil samples and <br /> one four-point soil composite, requested for the above referenced project on <br /> 03/31/09. The samples were received cold and intact. <br /> TPH-Purceables and[gr BTXE k X GC (EE& 80155 and FPA,80215) : <br /> High responses were observed for a number of analytes in the CCV analyzed <br /> 04/05/09 11:07; affected data was qualified with "b". High RPD was observed <br /> for benzene and toluene in the BS/BSD for batch 149626; these analytes were <br /> not detected at or above the RL in the associated sample. No other analytical <br /> problems were encountered. <br /> TPH-Fxtractables by GC (EPA 8015B) <br /> No analytical problems were encountered. <br /> Volatile Organics by GC/MS (EPA 8260&) : <br /> No analytical problems were encountered. <br /> Metals ,(EPA 601QB and EPA 6020) : <br /> The sample requiring metals data was canceled per the clients request. No <br /> metals data was reported. No analytical problems were encountered. <br /> Page 1 of 1 a <br /> 20.1 <br /> 7 ^f 7 <br />