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110 2nd Avenue South #D7,Pacheco CA 94553 55=- <br /> McCampbell <br /> Analytical, Inc. Telephone 925 798 1620 Fax 925-798 1622AO Website www nrccampbell corn E mail main@mccampb <br /> Advanced GeoEnvironmental, Inc Client Project ID Stockton Platmg Dec Date Sampled 12/15/04 <br /> 2004 <br /> 837 Shaw Road Date Received 12/16/04 <br /> I <br /> Client Contact Bill Little Date Extracted 12/16/04 <br /> Stockton,CA 95215 <br />' Client P O Date Analyzed 12/16/04 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br />' Extraction method SW503011 Analytical methods SW802113/8015Cm Work Order 0412341 <br /> Lab ID Client ID Matnx TPH(g) MT13E Benzene Toluene Ethylbenzene F <br /> Xylenes DF %SS <br /> 004A SVE A ND ND ND ND ND ND 05 105 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br />' Reporting Limit for DF=1, A 25 25 025 025 025 025 1 µg/L <br /> ND means not detected at or <br /> above the reporting linut S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported inµg/L,soil/sludge/solid samples to mg/kg, wipe samples inµg/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 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 spirit),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 as) m)no recognizable pattern <br /> tDHS Certification No 1644 Angela Rydelius, Lab Manager <br /> 1 <br />