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' 110 2nd Avenue South,#D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www mcc bell com E mail mam@mccampbell corn <br /> Advanced GeoEnvironmental,Inc Client Project ID Marlowe Property Date Sampled 03/06/03 <br /> • 837 Shaw Road Date Received 03/07/03 <br />' Stockton,CA 45215 Client Contact Tun Cuellar Date Extracted 03/08/03 <br />' <br /> Client P O Date Analyzed 03/08/03 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method. SW5030B Analytical methods SW8021B/8015Cm Work Order 0303082 <br />' Lab ID Client ID Matrix TPH(g) MTBF- Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A MWl W ND ND ND ND ND ND 1 117 <br /> 002A MW5 W ND ND ND ND ND ND 1 115 <br /> 003A MW6 W ND ND ND ND ND ND 1 —# <br /> 004A V W 1 W ND ND ND ND ND ND 1 110 <br /> --------------- <br /> Reporting 1-mut forDF-t, W 50 5 0 0 5 05 05 05 1 <br /> ND means not detected at or ZLI above the reporting liriut S NA NA NA NA NA NA 1 <br /> *water and vapor samples are reported in pg/L,soil and sludge samples in mg/kg,wipe samples inµg/wipe,and TCLP extracts in pg/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'),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/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,r)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 Rn <br /> DHS Certification No 1644 Angela Rydehus, Lab Manager <br /> I <br />