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110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc. Telephone:925-798-1620 Fax:925-798-1622 <br />' h Jlwww.mcc be0.com E-mail:main22EaMbell.corn <br /> Advanced GeoEnvironmental,Inc. Client Project ID: Strong Property Date Sampled: 12/12/02 <br />' 837 Shaw Road Date Received: 12/13/02 <br /> Stockton,CA 95215 Client Contact: Brian Millman Date Extracted: 12/17102-12119/02 <br />' Client P.O.: Date Analyzed: 12/17/02-12/19/02 <br /> 7— 1Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasolene with BTEX and MTBE* <br /> Extraction method: SW5030B Analytical methods: SW802113I8015Cm Work Order: 0212249 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A M W I W ND ND ND ND ND ND 1 104 <br />' 002A MW2 W 81,a ND 15 ND 4.4 5.4 1 107 <br /> 003A MW3 W ND ND ND ND ND ND 1 107 <br />' 004A MW4 W ND ND ND ND ND ND 1 110 <br /> 005A MW5 W 180,a ND 11 ND 33 3.5 1 t03 <br />' 006A MW6 W ND ND ND ND 2.3 ND 1 104 <br /> 007A MW7 W ND ND ND 0.88 ND ND 1 107 <br />' 008A MW8 W 170,a ND 4.0 1.7 8.4 21 1 117 <br /> 009A MW9 W ND ND ND ND ND ND 1 107 <br />' 0 - ---- I <br /> 010A MW10 W ND ND ND ND ND ND 1 105 <br /> I <br /> I <br /> Reporting Limit for DF=i; W 50 5.0 0.5 0.5 0.5 0.5 1 L <br /> ND means not detected at or µ� <br /> above the reporting limit I S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples are reported in gg/L,soil and sludge samples in mgfkg,wipe samples in gg/wipe,and TCLP extracts inµg/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 I 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 /> Iderived from gasoline(aviation gas).m)no recognizable pattern. <br /> DHS Certification No. 1644 ' <br /> �� �,'�Edward Hamilton, Lab Director <br /> f .� <br />