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i <br /> i <br /> CHROMALAB, INC. <br /> Environmental Services(SOB) — <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 /> CIient Sample ID BH-C <br /> tSpl# 176534 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/L) (ug/L) M <br /> TERTIARY BUTYL ALCOHOL (TBA) N D 1000 N D -- 200 <br /> ' METHYL TERTIARY BUTYL ETHER 1200 1000 N D 900 200 <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 /> ' (ERBF) -- <br /> TERTIARY AMYL METHYL ETHER N D 1000 N D 200 <br /> (TAME) <br /> �iOte Report-ing limits rased due to matrsx interference <br /> C Michael Lee Ichael Verona <br /> Chemist Operations Manager <br /> t <br /> _510-837-48S3 PM o3127 1220 Quarry Lane• Pleasanton, California 94566-4755 <br /> V060 0 000405 MIKfE 17 <br /> (510) 484-1919• Facsimile (510) 484-1096 <br /> Federal ED #68-0140157 <br />