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I110 2nd Avenue South #137,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www rmcairipbell com E-mail maink ccampbell coin <br /> Advanced GeoEnvironmental Client Project ID Stockton Fire Station Date Sampled 05/13/02 <br /> 837 Shaw Road Date Received 05/14/02 <br /> Client Contact Bill Little Date Extracted 05114/02-05/16102 <br /> Stockton,CA 95215 <br /> Client P O Date Analyzed 05/14/02-05/16/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0205180 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A influent A ND ND ND ND ND ND 0 5 102 <br />' 002A Effluent A ND ND ND ND ND ND 0 5 980 <br /> I <br /> I <br /> Reporting Limit for DF=1, A 50 5 0 05 05 05 0 5 ug/L <br />' ND means not detected at or <br /> above the reporting limit S 10 005 0 005 0 005 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 />' +The following descriptions of the TPM 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 gasoline'?),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 gasoltne9,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,j)no recognizable pattern <br /> • DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br /> I <br />