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i <br /> CHROMALAB, INC. <br /> Environmental Services(SDB) --- <br /> ' March 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 ID BH-B <br /> Spl# 176533 Matrix WATER <br /> Sampled March 19, 1998 Run# 1.1895 Analyzed March 23 , 1998 <br /> REPORTING BLANK BLANK DILUTION <br /> ' RESULT LIMIT RESULT SPIKE FACTOR <br /> ANALYTE (ug/L (ug/L ugiL , (o) <br /> TERTIARY BUTYL ALCOHOL TBA N D 500 N D -- 100 <br /> ' METHYL TERTIARY BUTYL ETHER N D 500 N D 102 100 <br /> (MTBE) <br /> DI-ISOPROPYL ETHER (DIPE) N D 1000 N D 100 <br /> ETHYL TERTIARY BUTYL ETHER N D 500 N D - - 100 <br /> (ETBE) - - <br /> TERTIARY AMYL METHYL ETHER N D 500 N D 100 <br /> (TAME) <br /> Note Reporting limits raised due to matrix interference <br /> Ile'._ e' I <br /> Michael Lee Michael Verona <br /> Chemist Operations Manager <br /> 1 <br /> 1 <br /> 510-8 3 7-4 8 5 3 pm o3iz7 1220 Ouarry Lane• Pleasanton, California 94566-4756 <br /> J VO60 0 0[0405 MIHIFE 19 <br /> (510) 484-1919 • Facsimile (510) 484-1096 <br /> Federal ID #68-0140157 <br />