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110 2nd Avenue South,#D7 Pacheco,CA 94553 5560 <br /> 14McCampbell Analytical Inc I Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell com E-mail main@mccampbell corn <br /> Advanced GeoEnvironmental, Inc Client Project ID Chase Madison Date Sampled 09/30/02 <br /> 837 Shaw Road Date Received 10/01/02 <br /> Client Contact Paul Dotson Date Extracted 10/04/02 <br /> Stockton, CA 95215 <br /> Client P Q Date Analyzed 10/04/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and NI BE* <br /> Extraction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0210003 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A MW2/09-30-02 W ND ND ND ND ND ND i ] 103 <br /> 002A MW4/09-30-02 W ND ND ND ND ND ND I 1 100 <br /> 003A I MW5/09-30-02 W ND ND ND ND ND ND 3 l0l <br /> 1 � <br /> I <br /> I <br /> j <br /> i <br /> Reporting Lmiit for DF=1 W 50 5 0 05 05 05 05 1 I pg/L <br /> KD means not detected at or <br /> above the reporting limit S NA I NA NA I NA NA NA 1 rng/Kg <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,unpe samples in ug/wipe,product/oil/non-aqueous liquid samples in <br /> mg/L,and TCLP extracts in ug/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 gasoline is significant,b)heavier gasohne range compounds are signr0cant(aged gasoltne9),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 gasoime9,e)TPH pattern that does not appear to be denved 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,t)liquid sample that <br /> contains greater than--2 vol %sediment,j)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to lx derived from <br /> gasoline(aviation gas) m)no recognizable pattern <br /> DHS Certification No 1644 k Edward Hamilton,Lab Director <br />