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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> IVXcCampbell Analytical, Inc. Telephone:925-798-1620 Fax:925-798-1622 <br /> Website:www.mccampbell.com E-mail:main®mceampbell.com <br /> Advanced GeoEnvironmental, Inc. Client Project ID: Strong Property Date Sampled: 03/05/04 <br />' 837 Shaw Road Date Received: 03/09/04 <br /> Stockton, CA 95215 Client Contact: Brian Millman Date Extracted: 03/09/04 <br /> IClient P.O.: Date Analyzed: 03/10/04 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method; SW5030B Analytical methods: SW8021B/8015Cm Work Order: 0403123 <br /> EClient ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A MWI1-20 S ND --- ND ND ND ND 1 93.6 <br />' 002A MWI1-25 S ND --- ND ND ND ND 1 98.4 <br /> 003A MW12-20 S ND --- ND ND ND ND 1 88.8 <br /> 004A MW12-25 S ND ND ND ND ND l 93.8 <br /> I <br /> Reporting Limit for DF—1; W NA NA NA NA NA NA 1 ug/L <br /> I ND means not detected at or 11 <br /> above the reporting limit S 1.0 0.05 0.005 0.005 0,005 0.005 1 mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported inµg/L,soil/sludge/solid samples in mg/kg, wipe samples inµg/wipe, <br /> I <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 McCampbelI 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)TAH 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;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 as).m)no recognizable pattern. <br /> DHS Certification No. 1644 Angela Rydelius,Lab Manager <br />