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I110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> [4HcCampbell Analyt=Inc Telephone 925-798 1620 Fax 925-798 1622 <br /> http.//wenn mecampbell com E-mall mainaC3mccampbell com <br /> I - - — <br /> Advanced GeoEnvironmental,Inc CIient Project ID Pacific Mini Mart-GW Date Sampled 10/18/02 <br /> EXE 1012 <br /> 837 Shaw Road Date Received 10/22/02 <br /> Stockton, CA 95215 Client Contact Bill Little Date Extracted 10/24/02 <br /> LCI,--Cntp <br /> O Date Analyzed 10/24/02 <br /> IGasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0210392 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A Effluent W ND ND ND ND ND ND 1 968 <br /> I002A Influent W I100,a 220 150 11 13 140 1 103 <br /> 003A EW i W 2600,a 230 280 29 160 240 1 —# <br /> I <br /> I <br /> I <br /> I <br /> I <br /> Reporting Limit for DF=1, W 50 50 05 05 05 05 1 µg/L <br /> ND means not detected at or <br /> Iabove the reporting limit S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in ug/wipe,product/oil/non-aqueous liquid samples in <br /> mg/L,and TCLP extracts in ug/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 signrficant(aged gasolme9) 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,i)liquid sample that <br /> I contains greater than--2 vol %sediment,3}reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be derived from <br /> gasoline(aviation gas) m)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> I <br />