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CHROMALAB, INC. <br /> { Environmental Services(SDB) <br /> ' March 27, 1998 Submission # 9803309 <br /> AQUA SCIENCE ENGINEERS INC <br /> ' Atten. Charlie Rous <br /> ' Protect UNOCAL Protect# 3254 <br /> Received: March 20, 1998 <br /> re 1 sample for TEPH analysis <br /> ' Method EPA 80z5M <br /> Matrix WATER Extracted March 23 , 1998 <br /> Sampled March 19, 1998 Run# 11777 Analyzed March 27, 1998 <br /> Diesel Motor Oil <br /> ' Spl# CLIENT SPL ID T (ug/L) (ug/L) <br /> 176536 BH-E N D N D <br /> Note Reporta.ng limit raised due to matrix interference Surrogate was diluted <br /> ou t <br /> Reporting Limits 4200 42000 <br /> Blank Result N D N D. <br /> �.Blank Spike Result (o) 98 8 <br /> ' Carolyn House Bruce Havli.k <br /> Chemist Chemist <br /> • <br /> 510-837-4853 PM 11,21 1220 Quarry Lane•' Pleasanton, California 94566-4756 sa 10 a acoals cntH 16 i <br /> (510)484-1919• Facsimile (510) 484-1096 <br /> Federal ID#68-0140157 <br />