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� 1 <br /> CHROMALAB, INC. <br /> EnvEronmentai Services(SDB) <br /> March 31, 1998 Submzssj.on # 9803309 <br />� 1 <br /> AQUA SCIENCE ENGINEERS INC <br /> ' Atten Charlie Rohs <br /> Pro]ect UNOCAL Pro]ect# 3254 <br /> Received March 20 , 1998 <br /> ' re One sample for Fuel Oxygenates by GC/MS analysis <br /> Method EPA SW846 Method 8260 Modif2ed <br /> Client Sample TD BH-C@6 5 ' <br /> 1 Spl# 176542 Matrix SOIL <br /> Sampled March 19 , 1998 Run# 11898 Analyzed March 23 , 1998 <br /> 1REPORTING BLANK BLANK DILUTION <br /> RESULT LIMIT RESULT SPIKE FACTOR <br /> ANALYTE (ug//Kg) _ (ugfKg)_ (ua1/Kq) (o) ___ <br /> TERTIARY BUTYL ALCOHOL (TBA) N D 25 N D --_ .., 5 <br /> ' METHYL TERTIARY BUTYL ETHER 320 25 N D 97 2 5 <br /> (MTBE) <br /> DI-ISOPROPYL ETHER (DIPS) N D 50 N D -- 5 <br /> ETHYL TERTIARY BUTYL ETHER N D 25 N D -- 5 <br /> TERTIARY AMYL METHYL ETHER N D 25 N D 5 � <br /> (TAME) <br /> of Reporting limits raised due to matrix interference <br /> a;1�2 <br /> ' Mic ael Lee Michael Verona <br /> Chemist Operations Manager <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> i <br /> 1 <br /> 510-8 3 7 -4 8 5 3 PM 0312' 1220 Quarry Lane• Pleasanton, California 94566-4756 <br /> ' 4060 0000405 MINE E E I/ <br /> (510) 484-1919• Facsimile (510) 4$4-1096 <br /> Federal ID #68-0140157 <br />