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110 2nd Avenue South,#D7,Pacheco,CA 94553-5 560 <br /> 4L60��:��Analytical Inc. Telephone:925-798-9620 Fax:925-798-1622 <br /> Iht ://www.n= bell.com E-mail:niain@r-mcanipbell.com <br /> • Advanced GeoEnvironmental, Inc. Client Project ID: Strong Property Date Sampled: 12/19/03 <br /> 837 Shaw Read Date Received: 12/23/03 <br /> Client Contact: Brian Millman Date Extracted: 12/30103-12131103 <br /> Stockton,CA 95215 <br /> Client P.O.: Date Analyzed: I2/30/03-12131103 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method: SW5030B Analytical methods: SW8021B18015Cm Work Order. 0312450 <br /> Lab ID Client Ila Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A DW5157/121903 W ND ND ND ND ND ND 1 119 <br /> I <br /> I <br /> I <br /> I — <br /> I � I <br /> [reporting Limit for 50 5.0 0.5 0.5 0.5 0.5 1 µg/1 <br /> I ND means not detected at or <br /> above the reporting limit S NA NA NA NA NA NA 1 mg/Kg <br /> i <br /> •water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/solid samples in mg/kg, wipe samples inµg/wipe, <br /> product/oil/non-aqueous liquid samples in mg/L. <br /> I #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;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. 1544 Angela Rydehus,Lab Manager <br /> I <br />