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1 <br /> 110 2nd Avenue South,#D7 Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www mccarnlibell com E-mail morn mccampbell corn <br /> Advanced GeoEnvironmental, Inc Client Project ID Sierra Lumber Date Sampled 02/26/03 <br /> 837 Shaw Road Date Received 02/27/03 <br /> Stockton, CA 95215 Client Contact Tun Cuellar Date Extracted 02/28/03 <br />' Client—P0 Date Analyzed 02/28/03 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method. SW5030B Analyucal methods SW8021B/8015Cm Work Order 0302376 <br />' Lab ID Clicnt ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A INFLUENT A 27,b ND ND 032 ND 073 1 937 <br />' 002A EFFLUENT A 45,m ND ND 027 ND ND 1 ---# <br /> 1 <br /> I <br /> I � <br /> I <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 reporang limitS 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 in gg/wipe,and TCLP extracts inµg/L <br /> I #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 gasolme'%c)lighter gasoline range <br /> I 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 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—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 Angela R dehus Lab Manager <br /> I <br /> I <br />