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110 2nd Avenue South,1#D7 Pacheco CA 94553-5560 <br /> Telephone 925-798-1620 Fax 925-798-1622 <br /> FMcCampbell Analytical Inc <br /> ht J/www mcc bell com E-mad T11am mccampbell corn <br /> • Advanced GeoEnvironmental, Inc Client Project ID Flag City Chevron Date Sampled 12/10/03 <br /> 837 Shaw Road Date Received 12/11/03 <br /> Stockton,CA 95215 Client Contact Tun Cuellar Date Extracted 12/15/03 <br /> Client P O Date Analyzed 12/15/03 <br /> Gasoline Range(C6-02)Volatile Hydrocarbons as Gasohne* <br /> xtraction method. SW5030B Analytical methods 8015Cm Work Order 0312209 <br /> Lab Il7 Client 0 Matrix TPH(g) DF %SS <br /> 001A I MW14 W ND 1 954 <br /> 002A MW15 W ND 1 982 <br /> 003A M W l7 W ND 1 93 6 <br /> 004A MW18 W ND 1 928 <br /> — I <br /> I <br /> I <br /> I <br /> I <br /> i <br /> Reporting Limit for DF=1, W I 50 p,g/L <br /> ND means not detected at or <br /> above the reporting limit S I NA NA <br /> "water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/solid samples in mg/kg, wipe samples in jig/wipe, <br /> product/oil/non-aqueous liquid samples in 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 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 gasolmO,e)TPH pattem that does not appear to be denved from gasoline(stoddard solvent/mineral spirit9),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,j)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be <br /> derived from gasoline(aviation gas) m)no recognizable pattern <br /> . DHS Certification No 1644 Bela Rydelius, Lab Manager <br />