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Inc. 110 2nd Avenue South #D7 Pacheco CA 94553-5�com <br /> McCampbell Analytical, ITelephone 925-798 1620 Fax 925-79R-1622amp <br />' Website www r=ampbell com Email mam@mccamp <br /> . Advanced GeoEnvironmental,Inc Client Project ID Three B's Date Sampled 03/29/05 <br />' 837 Shaw Road Date Received 03/30/05 <br /> Client Contact Tun Cuellar Date Extracted 04101105-04104/05 <br /> Stockton, CA 95215 <br />' Client P O Date Analyzed 04/01/05-04/04/05 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021BI8015Cm Work Order 0503533 <br /> Lab lD Client ID Matrix L <br /> TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 017A MW11E W ND --- ND ND ND ND 1 95 <br />' 018A MW11F W ND --- ND ND ND ND 1 99 <br /> 1 <br /> ----------------- <br />' Repornng Limit for DF=1 `7y 50 50 05 05 05 05 1 µg/L <br /> ND means not detected at or <br /> above the reporting limn S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludgelsolid samples in mg/kg, wipe samples to pg/wipe, <br /> productloil/non-aqueous liquid samples in mglL <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 significant(aged gasolene?),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 spint?),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 pattem,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 Angela Rydellus,Lab Manager <br />