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1102nd Avenue South 4D7 Pacheco CA 94553-5560 <br /> A# McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> F _ htto//www mc_c hell(-4m E-mail mom n ecampbell com <br />'^ Advanced GeoEnv_ironmental,Inc Client Project ID Comfort Air Date Sampled 10/10/02 <br /> • 837 Shaw Road Date Received 10/11/02 <br /> Stockton,CA 95215 Client Contact Paul Dotson Date Extracted 10/14/02-10/16/02 <br />' Client P Q - Date Analyzed 10/14/02-10/16/02 ' <br /> Gasoline Range(C6 C12)Volatile Hydrocarbons as Gasoline* <br /> Extraction method Sw5030B Analytical methods SW8015Cm Work Order 0210228 <br />' Lab ID Client ID Matrix TPH(g) DF %SS <br /> 002A CPTI/96-100 W 13,000 a 10 —# <br /> 003A CPT1/113-117 W 140,000,a i 500 1 998 <br /> i <br /> i <br /> E <br /> Reporting Limit for DF—1, W SO 11 <br />' ND means not detected at or <br /> above the reporting limit S NA NA <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in ug/wipe,product/oil/non-aqueous liquid samples in <br /> mg/L,and TCLP extractsm ug/L <br />' B cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descnptions 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 gasoline?,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent),f)one to a few isolated non-target peaks present,g) <br /> strongly aged gasoline or diesel range compounds are signifiewit h)lighter than water immiscible sheen/product is present,i)liquid sample that contains <br /> greater than—2 vol %sediment,j)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be derived from gasoline <br /> (aviation gas) ,moi)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />