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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www meeainpbell corn E-mail main@meeampbell corn <br /> lieAdvanced GeoEnvironmentaI Client Project ID Sierra Lumber Date Sampled 04/23/02 <br /> 837 Shaw Road Date Received 04/24/02 <br />' Client Contact Tian Cuellar Date Extracted 04/24/02-04/25/02 <br /> Stockton,CA 95215 <br /> Lient PO Date Analyzed 04/24/02-04/25102 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with MTBE and BTEX* <br /> 'xtn]ct1'0"method SW50308 Analytical methods SW802113/8015Cm Work Order 0204383 <br />' Lab 1D Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A l INFLUENT I Air 190,b ND ND 1 6 1 2 21 05 119 <br />' 002A I EFFLUENT Air ND ND ND ND ND ND 05 973 <br /> I � <br /> I I <br /> I <br /> - 1 <br /> fi <br /> i <br /> i <br /> I I <br /> I <br /> Reporting Limit for DF=1, A 50 5 0S 05 05 05 ug/L <br /> ND means not detected at or <br /> above the reporting limit 1s- 1 005 I 0 005 1 0 005 I 0 005 0 005 mg/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 /> DF=dilution factor <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> I +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 gasoline9),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 gasolcne9,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent),f)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 3)no recognizable pattern <br /> 1 DHS Certification No 1644 Edward Hamilton,Lab Director <br />