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CHRQMALAB, INC. <br /> Environmental Services(SDS) <br /> ' March 31, 1998 Submission # 9803309 <br /> AQUA SCIENCE ENGINEERS INC <br /> ' Atten Charlie Rous <br /> Pro]ect UNOCAL Pro_7ect## 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-A <br /> Spl## 176532 Matrix. WATER <br /> Sampled March 19 , 1998 Run#• 11766 Analyzed March 20, 1998 <br /> ' REPORTING BLANK BLANK DILUTION <br /> RESULT LIMIT RESULT SPIKE FACTOR <br /> ANALYTE �(ug/L) (Ug/I) (uq/L) (o) <br /> TERTIARY BUTYL ALCOHOL (TBA) N D 1000 N D - - 200 <br /> ' METHYL TERTIARY BUTYL ETHER N D 1000 N D 90 0 200 <br /> (MTBE) <br /> DI-ISOPROPYL ETHER (DIPE) N D 2000 N D - - 200 <br /> ETHYL TERTIARY BUTYL ETHER N D 1000 N D - - 200 <br /> TERTIARY AMYL METHYL ETHER N D 1000 N D 200 <br /> (TAME) <br /> Note Reporting lzmsts raised due to matrsx interference <br /> GC� <br /> ' Michael Lee Michael Verona <br /> Chemist Operations Manager <br /> I <br /> • <br /> 511)-111'1-4853 ,,, 13121 1220 Quarry Lane• Pleasanton, California 94566-4756 <br /> Y060 0 GCEW05 MIM E V <br /> (510) 484-1919 • Facsimile (510) 484-1096 <br /> Federal ID #68-0140157 <br />