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MW <br /> 110 2.d Avenue So #D7,Pacheco,CA 94553-5560 <br /> 4 ::1 McCampbell Analytical, Inc. Telephone:92S-798-1620 Fax:925-798-1622 <br /> Website:www.mccanrbell.com E-mail:nrain@niccampbell cont <br /> Shaw Environmental Client Project ID: #838819;SBC-Escalon Date Sampled: 04/08/04 <br /> 4005 Port Chicago Hwy Date Received: 04/08/04 <br /> Concord,CA 94520 Client Contact: Rob Delnagro Date Extracted: 04/08/04 <br /> Client P.O.: Date Analyzed: 04/09/04 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction«ethod; SW5030B Analytical methods: SW8021B/8015Cm Work Order. 0404100 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A CS(01-04) S — -- ND ND ND 0.030 1 93.1 <br /> Reporting Limit for DF=1; W NA NA NA NA NA NA 1 ug/L <br /> ND means not detected at or <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 in ttg/L,soil/sludge/solid samples in mg/kg, wipe samples in pg(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 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 ).m)no recognizable pattern. <br /> DHS Certification No. 1644 Angela Rydehus,Lab Manager <br />