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McCampbell Analytical Inc 1102nd Avenue South #D7 Pacheco CA 94553-5560 <br /> Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www mei bell com E-mad rn;nnCa4wc2Mbcl1 cam <br /> AdvancedGeoEnvironmental,Inc I Client Project ID Stockton Fire Station Date Sampled 05/13/03 <br /> 837 Shaw Road Date Received 05/14/03 <br /> Client Contact Bill Little Date Extracted 05/14/03 <br /> Stockton,CA 95215 <br /> Client P O Date Analyzed 05/14/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Awlyncal methods SW8021B/8015Cm Work Order 0305207 <br />' Lab Client m Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A Effluent A ND I ND ND ND ND 1 101 <br /> 1 <br /> I <br /> Reporting Lunit fox DF=1, A 25 25 025 025 025 ()25 1 µg2 <br /> ND means not detected at or <br /> above the repomng]rant S NA NA NA NA NA NA 1 mg/Kg <br /> "water and vapor samples are reported inµg/1.,soil and sludge samples to mg/kg,wipe samples toµg/wipe,and TCLP extracts inµg/1, <br />' #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descriptions of the TPH chromatogram are cursory to 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 stgnlfFcant(aged gasoltne9),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 gasolme9,e)TPH pattern that does not appear to be denved from gasoline(stoddard solvent/mineral spint9),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 Angela Rydehus, Lab Manager <br /> I <br />