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11 <br /> CHRQMALAB, INC. <br /> Environmental Services(SUB) <br /> tMarch 31, 1998 Submission # 9803309 <br /> AQUA SCIENCE ENGINEERS INC <br /> ' Atten Charlie Rous <br /> Project UNOCAL Project## 3254 <br /> Received March 20, 1998 <br /> ' re One sample for Fuel Oxygenates by GC/MS analysis <br /> Method EPA SW846 Method 8260 Modified <br /> Client Sample TD BH-H@6 . 5 ' <br /> ' Spl# 176547 Matrix SOIL <br /> Sampled March 19, 1998 Run# 11898 Analyzed March 23 , 1998 <br /> REPORTING BLANK BLANK DILUTION <br /> ' RESULT LIMIT RESULT SPIKE FACTOR <br /> ANALYTE u K u K u K o <br /> TERTIARY BUTYL ALCOHOL (TBA) N D 25 N D - - 5 <br /> ' METHYL TERTIARY BUTYL ETHER N D 25 N D 972 5 <br /> (MTBE) <br /> DI-ISOPROPYL ETHER (DIPE) N D 50 N D - 5 <br /> ETHYL TERTIARY BUTYL ETHER N D 25 N D - - 5 <br /> (ETBE) <br /> ' TERTIARY AMYL METHYL ETHER N D 25 N D - - 5 <br /> (TAME) <br /> Note Reporting Iimsts raised due to matrix interference <br /> d'41 <br /> Michael Lee Michael 4 <br /> a <br /> ' Chemist Operations Manager <br /> 1 <br /> 1 � <br /> 510-8 3 7-4 8 5 3 pM 03121 1220 Quarry Lane •' Pleasanton, California 94566-4756 V1Y69 0 OCo405 MINIEE 11 <br /> (510) 484-1919 • Facsimile (510) 484-1096 <br /> Federal ID #68-0140157 <br />