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i <br /> cbCurtis &Tompkins,Ltd. <br /> CASE NARRATIVE <br /> Laboratory number: 211070 <br /> Client: Technical Studies; Inc. <br /> Location: Valero 4' <br /> Request Date: 03/31/09 <br /> Samples Received: 03/31/09 <br /> i, <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-PurQeables and/or BTXE by GC (EPA 801513 and EPA 8021, ) <br /> High responses were observed for a number of analyte's 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 199626; these analytes were <br /> not detected at or above the RL in the associated sample.!. No other analytical <br /> problems were encountered. <br /> TPH-Extractables by GC (EPA 8015B) : <br /> No analytical problems were encountered. <br /> Volatile- Organics by GC MS EPA 8260B) - <br /> No <br /> 2608 :No analytical problems were encountered. <br /> Metals (EPA 6010E 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 /> h <br /> a <br /> 3 . . <br /> a <br /> Page 1 of 1 # <br /> 20.1 <br /> ii <br /> 7 !1f 7 <br />