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1 <br /> CHRQMALAB, INC. <br /> Environmental Services(SDB) <br /> ' March 31, 1998 Submission # 9803309 <br /> AQUA SCIENCE ENGINEERS INC <br /> ' Atten Charlie Rous <br /> Protect UNOCAL Protect# 3254 <br /> Received March 20, 1998 <br /> ' re One sample for Fuel Oxygenates by GC/MS analysis <br /> Method EPA SWB46 Method 8260 Modified <br /> Client Sample ID BH-B@6 5 ' <br /> ' Spl# 176541 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_ Kg ug „KqugKq (%) <br /> TERTIARY BUTYL ALCOHOL (TBA) N D 5 0 N D -- I <br /> ' METHYL TERTIARY BUTYL ETHER N D 5 0 N D 97-2 1 <br /> (MTBE) <br /> DI-ISOPROPYL ETHER (DIPE) N D 10 N D 1 <br /> ETHYL TERTIARY BUTYL ETHER N D 5 0 N D -- 1 <br /> ' (ERBF) -- <br /> TERTIARY AMYL METHYL ETHER N D 5 0 N D 1 <br /> (TAM <br /> ' Michael Lee <br /> Michael Verona <br /> ' Chemist Operations Manager <br /> 1 <br /> 1 <br /> 1 <br /> • <br /> 1 <br /> 510-8 3 7-4 8 5 3 PM u127 1220' Quarry Lane• Pleasanton, California 94566-4756 J V08U 0 000405 MiNLEF l; <br /> (510) 484-1919• Facsimile (510) 484-1096 <br /> Federal ID #68-0140157 <br />