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110 2nd Avenue South,#D7 Pacheco,CA 94553-5560 <br /> F:�McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798 1622 <br /> ' httpJ/www mcca bell com E-mail TriaviQmccampbeil corn <br /> • Advanced GcoEnvlronmental,Inc Client Project ID City of Stockton Date Sampled 08/07/03 <br /> 837 Shaw Road Date Received 08/08/03 <br /> ' <br /> Client Contact Paul Dotson Date Extracted 08/12/03 <br /> Stockton,CA 95215 <br /> ' �Client P O Date Analyzed 08/12/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method. SW5030B Analytical methods SW8021B/8015Cm Work Order 0308122 <br /> ' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylb=ene Xylenes DF %SS <br /> 001A MW2 W ND ND ND ND ND ND 1 946 <br /> ' 002A MW4 W ND ND ND ND ND ND 1 919 <br /> 003A MW5 W ND ND ND ND ND ND 1 916 <br /> 004A MW25 W ND ND ND ND ND ND 1 103 <br /> i <br /> i <br /> 1 <br /> Reporung Lunit for DF 1 W 50 50 05 05 05 05 1 ltg/L <br /> ' ND means not detected at or <br /> above the reporting Imnt S NA NA NA NA NA NA 1 I mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in uglL,sotl/sludge/salid samples in mg/kg, wipe samples inµg/wipe, <br /> ' pmductloillnon-aqueous hquid samples m mg/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 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 gasoline9,e)TPH patten 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,))reporting limit raised due to high MTBE cont 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 />