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l 10 2nd Avenue South !#137,L'achecn CA 94553 5560 <br /> McCaznpbell Analytical Irie Telephone 925-798-1620 Fax 925-798-1622 <br /> h l/www meca bell com E-mail main mcca bell Com <br /> Advanced GeoEnvlronmental, Inc Client Project ID Sierra Lumber Date Sampled 12/03/02 <br /> 837 Shaw Road Date Received 12/05/02 <br /> Client Contact Tim Cuellar Date Extracted 12108/02-12112102 <br /> Stockton,CA 95215 <br /> LC11__e11tP <br /> O �DateAnalyzed 12108102-12112102 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Hxtractioninethod SW5030B AnAyhcalrmthods SW802113/8015Cm Work Order 0212065 <br /> Lab ID Client ID Matrix TPH(g) MTBE. Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A MW 1 W ND ND ND ND 1 1 058 1 101 <br /> 002A MW2 W 5100,a ND<100 24 130 320 2000 20 102 <br /> 003A MW4A W 370,b,t ND ND 2 5 1 2 77 1 950 <br />' 004A MW4B W 160,a ND 30 061 24 ND 1 114 <br /> 005A MW6 W ND,t ND ND ND ND ND 1 106 <br /> I006A MW8 W ND,i ND ND ND ND ND 1 101 <br /> I <br /> I <br /> Reportmg Lmnt for DF=1, 'fir 50 50 05 05 05 05 1 1ig/L. <br />' ND means not detected at or <br /> above the reporting limit S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples are reported in pg/L,soil and sludge samples in mg/kg,wipe samples inµg/wipe,and TCLP extracts in liglL <br />' #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> -The following descriptions of the TPH chromatogram are cursory in nature and McCampbeli Analytical is not responsible for their interpretation a) <br /> unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are significant(aged gasolme9) 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 gasolin0,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spinto),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,t)liquid <br /> sample that contains greater than—2 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 <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />