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110 2nd Avenue South,M7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925 798 1622 <br /> -httpJtwww mcc bell com E-mad it-LamEacanybell com <br /> Advanced GeoEnvironmental, Inc Client Project ID 3 B's Truck Plaza Date Sampled 12/06/02 <br /> $37 Shaw Road <br /> Date Received 12/06/02 <br /> Client Contact Tum Cuellar Date Extracted 12/10/02-12/12102 <br /> Stockton, CA 95215 Client P O Date Analyzed 12110/02-12/12/02 <br /> IGasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analyncal methods SW8021B18015Cm Work Omer 0212122 <br /> Lab ID Client ID MatrixTPH(g) MTBI; Benzene Toluene Ethylbenzene Xylenes DF I %SS <br /> 001A MW-1 W II00,a ND<50 260 15 17 29 10 107 <br /> 002A MW-2 W I1,000,a ND<1000 2200 140 85 110 100 103 <br /> 003A MW-3 W 15,000,a ND<500 3300 320 350 1100 100 105 <br /> 004A MW-4 W ND,i 79 ND ND ND ND 1 106 <br /> 005A MW-5 W 68,a ND 17 ND ND ND 1 102 <br /> I006A MW-6 W 12,000,a 1 ND<1000 3200 58 230 160 20 112 <br /> 007A DW-1 W ND ND ND ND ND ND 1 100 <br /> I • <br /> I <br /> 1 <br /> Reporting Linut for DF—1, W 50 50 05 05 05 0 5 1 µg/L <br /> ND means not detected at or <br /> above the reporting lmut S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples are reported inµg/L,soil and sludge samples 1n mg/kg,wipe samples mµg/w1pe,and TCLP extracts toµ&/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),e)lighter gasoline range <br /> t 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/mineral spint?),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 1)liquid <br /> sample that contatns greater than--2 vol %sediment,j)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be <br /> denved from gasoline(aviation gas) m)no recognizable pattern <br /> iDHS Certification No 1644 Edward Hamilton,Lab Director <br />