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F110 2nd Avenue South,f1D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798-1622 <br /> http Rwww mecampbell corn E-mail mamQmccauipbeEl com <br /> Advanced GeoEnvlronmental,Inc Client Project ID Sierra Lumber Date Sampled 09/11/02 <br />' 837 Shaw Road Date Received 09/12/02 <br /> Stockton,CA 95215 Client Contact Tun Cuellar Date Extracted 09/12/02-09/13102 <br />' <br /> rChent P O Date Analyzed 09/12102-09/13/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021BI8015Cm Work Order 0209183 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF 1 %ss <br /> 001A INFLUENT A 80,a ND ND 1 3 ND 4 9 1 117 <br />' 002A EFFLUENT A 59,a ND 099 ND ND ND 1 113 <br /> I <br /> Reporting Lunt for DF=l A 25 25 025 025 025 025 1 Ag/L <br /> ND means not detected at or <br /> above the reportmg hnut S NA NA NA NA NA NA 1 rng/Kg <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in ug/wipe,and TCLP extracts in ug/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 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 gasoline9,e)TPH pattern that does not appear to be denved from gasoline(stoddard solvent),t)one to a few isolated non-target peaks present, <br /> g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen/product is present,i)liquid sample that <br /> contains greater than—2 vol %sediment,j)reporting lirrut raised due to high MTBE content,k)TPH pattern that does not appear to be derived from <br /> gasolme(avnauon gas) m)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> I <br />