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I - 110 2nd Avenm South,t/D7,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> httpJ/www mcWmpbell com E-mail mam®mccampbell corn <br /> IAdvanced GeoEnvironmental,Inc Client Project ID Cherokee Truck Stop Date Sampled 06/10/02 <br /> 837 Shaw Road <br /> Date Received 06/11/02 <br /> Stockton,CA 95215 Client Contact Paul Dotson Date Extracted 06/12/02-06/14/02 <br /> Client P O Date Analyzed 06/12/02-06/14/02 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> "traction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0206149 <br /> Lab ZD Client 7D Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %S5 <br /> 001 A MW 1106-10-02 W 1500,a,h ND<25 11 60 48 230 5 115 <br /> I002A MW2/06-10-02 W ND ND 3 5 092 ND 096 1 101 <br /> 003A MW3/06-10-02 W ND ND ND ND ND ND 1 103 <br />' 004A MW4/06-10-02 W ND ND ND ND ND ND 1 103 <br /> 005A MW5/06-10-02 W 320,a ND 41 14 ND 069 1 116 <br /> 006A MW6/06-10-02 W ND ND ND ND ND ND 1 103 <br /> 007A SMALLWELL W ND ND ND ND ND ND 1 106 <br /> I008A LARGEWELL W ND ND ND ND ND ND 1 105 <br /> Reporting Limit for DF=1, W 50 50 05 05 05 05 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 ughvipe,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 TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation a) <br /> unmodified or weakly modified gasoiine is significant,b)heavier gasoline range compounds are significant(aged gasolmer)),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 gasoline),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,r)liquid sample that <br /> contains greater than—2 vol %sediment,,1)no recognizable pattern,k)TPH pattern that does not appear to be derived from gasoline(aviation gas) <br /> • DHS Certification No 1644 Edward Hamilton,Lab Director <br /> I <br />