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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Teiephone 925 798 1620 Fax 925-798-1622 <br /> ' h l/www nice bell corn E mail niani@mccEMbell coin <br /> Advanced GeoEnvironmental,Inc Client Project ID Chapin Bros Date Sampled 04/23/03 <br /> ' 837 Shaw Road Date Received 04/24/03 <br /> Stockton,CA 95215 Client Contact Bill Little Date Extracted 04/24/03 <br /> [Chent P O Date Analyzed 04/24/03 <br /> Gasoline Range(C&C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW802IH18015Gm Work Order 0304379 <br /> Lab ID Client ID Matrix TPH(g) i MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> OOIA MW7 W ND,t __ ND ND ND ND 1 102 <br /> Reporting Lnint for DF-1 W 50 50 0 5 05 0 5 05 1 <br /> µg/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 to pg/L,soil and sludge samples in mg/kg,wipe samples inµg/wipe,and TCLP extracts inµg/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 gasohne is significant,b)heavier gasoline range compounds are significant(aged gasoline?) c)lighter gaeoline range <br /> compounds tthe most monile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> altered gasolinO,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spent?),f)one to a few isolated nan-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 MTBH content, )TPH pattern that does not appear to be <br /> ' denved from gasoline(aviation gas) m)no recognizable pattern <br /> . DHS Certification No 1644 <br /> gela Rydehiis,Lab Manager <br />