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110 2nd Avenue South,#D7 Pacheco,CA 94553-5560 <br /> Inc.4 1 McCampbell Analytical, Telephone 925-798 1620 Fax 925-798-1622 <br /> Website www mccampbell com is mail mainQmccampbe11 com <br /> Advanced GeoEnvironmental, Inc Client Project 11D Flag City Chevron Date Sampled 06/15/04 <br /> 837 Shaw Road Date Received 06/16/04 <br /> Stockton,CA 95215 Client Contact Tun Cuellar Date Extracted 06/17/04-06118/04 <br /> Client P Q Date Analyzed 06/17/04-06/18104 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extracnonmethod SW5030B Analyticalmetho& SW8021B/8015Cm Work Order 0406263 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A MW6A W ND ND - -- 1 991 <br /> 002A MW613 W ND ND -- --- -- - 1 997 <br /> 003A MW9A W ND 18 -- -- -- 1 101 <br /> 004A MW9B W ND ND --- --- --- -- 1 101 <br /> 005A I MW9C W ND ND -- --- -- - 1 101 <br /> 006A MW11A W ND,i ND - --- - - 1 988 <br /> 007A M W 11 B W ND 43 --- -- - 1 985 <br /> 008A MW11C W ND ND -- -- --- — 1 101 <br /> 009A MW I l D W ND ND — --- --- -- 1 100 <br /> . OIOA Influent W ND --- ND ND ND ND 1 103 <br /> 011A Effluent W ND -- ND ND ND ND 1 101 <br /> Reporting Limit for DF-1 W 50 50 0 5 0 5 0 5 05 1 gg/L <br /> ND means not detected at or <br /> above the reporting lutnt S NA NA NA NA NA NA 17 <br /> mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/solid samples in mglkg, wipe samples inµg/wipe, <br /> product/oil/non-aqueous liquid samples in mg/L <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descriptions of the TPH 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 signilicant(aged gasohnO),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 gasoline9 e)TPH pattern that does not appear to be derived from gasoline(Stoddard solvent I mineral spirit7),f)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-1 vol %sediment,j)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,n)TPH(g)range non-target isolated peaks subtracted out of the TPH(g)concentration at <br /> the client's request <br /> DHS Certification No 1644 Bela Rydellus,Lab Manager <br />