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' 110 2nd Avenue South #137,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798-1622 <br />' I http]/www nim bell corn E-mad rnaw@=carWbell com <br /> Advanced GeoEnvironmentaI, Inc Client Project ID City of Stockton Date Sampled 08/07/03 <br />' 837 Shaw Road Date Received 08/08/03 <br /> Stockton,CA 95215 Client Contact Paul Dotson Date Extracted 08/12/03-08113/03 <br />' Client P Q Date Analyzed 08112103-08/13/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0308123 <br />' Lab ID Client 1D Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A MW3 W 190,000,a ND<1200 5000 49,000 4400 23,000 250 93 6 <br /> 002A MW6 W 62,a ND ND 078 ND 0 99 1 917 <br /> 003A MW9 W 2800,a ND<25 35 18 210 650 5 108 <br />' 004A MW 10 W ND ND ND ND ND ND 1 949 <br /> 005A MW22 W 11,000,a ND<100 600 100 1200 950 20 101 <br /> I <br /> f <br /> i <br /> Reporting Lmnt for DF—1, W 50 50 0 5 0 50 5 05 1 <br /> ND means not detected at or µi� <br /> above the reporting]mot S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/solid samples in mg/kg, wipe samples inµg(wipe, <br /> product/oil/non-aqueous liquid samples in mg/L <br /> I #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 /> I unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are significant(aged gasoline9),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 gasohne'i,e)TPH pattern 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 /> I sample that contains greater than—2 vol %sediment,,])reporting limit raised due to high MTBE conten k)TPH pattern that does not appear to be <br /> derived from asohne(aviation as m no reco izable pattern <br /> DHS Certification No 1644 Angela Rydehus, Lab Manager <br /> 1 <br />