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114 2nd Avenue South,#D7 Pacheco CA 94553-5560�Analy�tical �tcEJ- <br /> mCa�m�pbellcnc Telephone 925-798-1620 Fax 925-798-1622 <br /> httpJ/www mccartipbell corn E-mail main@mccagpbell com <br /> Env Science Associates Client Project ID #200252,UOP-MTBE I Date Sampled 04/11/03 <br /> 225 Bush Street,Ste 1700 Date Received 04/16/03 <br /> Client Contact Peter Hudson Date Extracted 04/18/03-04119103 <br /> San Francisco, CA 94104 <br /> Client P O Date Analyzed 04118103-04119103 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extramonmethod SW5030B Analytical methods SW8021B/9015Cm Work Order 0304246 <br /> Lab ID Client 11) Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> OOIA MW-1 W ND ND ND ND ND ND 1 101 <br /> 002A MW-2 W ND ND ND ND ND ND 1 989 <br /> 003A MW-3 W ND ND ND ND ND ND 1 101 <br /> 004A MW 4 W ND ND ND ND ND ND 1 103 <br /> Reporting Lunt for DF-1, W 50 50 05 05 0 5 05 1 n/L <br /> ND means not detected at or <br /> above the reporting Wmt S NA NA NA NA NA NA 1 1 mg/Kg <br /> "water and vapor samples are reported inµg/L,soil and sludge samples in mg/kg,wipe samples inµg/wipe,and TCLP extracts in 1ig/L <br /> tt:cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descriptions of the TP11 chromatogram are cursory In nature and McCampbell Analytical is not responsible for their interpretation a) <br /> unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are significant(aged gasoline?),c)lighter gasoline range <br /> compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> — - =altered gasolme9,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spent?),t)one to a few isolated non-target— <br /> peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen/product is present,i)liquid <br /> sample that contains greater than-2 vol %sed[ment,,)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be <br /> derived from gasoline(aviation gas) m)no recognizable pattern <br /> DHS Ceruficatlon No 1644 Angela Rydehus, Lab Manager <br />