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I 10 2nd Avenue South,4137,Pacheco,CA 94553-5560 <br /> McCampbell Analyticai Inc. I 'Telephone:925-798-1620 Fax:925-798-1622 <br /> I hrtp://www.mccampbelf.com E-mail:main r nccampbell.cam <br /> Advanced GeoEnvironmental, Inc. Client Project ID: Weldon Church Date Sampled: 03/20/03 <br />' 837 Shaw Road Date Received: 03/25/03 <br /> Stockton,CA 95215 Client Contact: Dan Kalmbach Date Extracted: 03/27/03-03/28/03 <br />' Client P.O.: Date Analyzed: 03/27/03-03/28/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method: SW5030B Analytical methods: SW8021B/8015Cm Work Order: 0303425 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes OF %SS <br /> 001A MWI W 3000,a ND<120 590 120 39 150 ! 1 105 <br />' 002A . MW2 + W NO NO NO I NO NO ND — j 1 95.6 <br /> 003A MW3 W NO =NDjj NO NO NO NO 1 96.0 <br /> 004A MW4 W 5400,a ND<50 75 18 200 76 10 115 <br /> 1 <br /> 005A MWS W NO ND NO i ND !! NO ND 1 92.0 <br />' 006A MW6 up W NO ND NO — — ND NO I NO i 1 90.9 <br /> 007A MW6 low W NO NO i ND NO ND NO T 1 94.5 <br />' 008A MW7 W ND <br /> NO ND NO NO I ND g 1 91.9 <br /> i I <br /> s <br /> I ! <br /> i <br /> I <br /> I <br /> Reporting Limit for DF=I; W 50 5.0 0.5 0.5 0.50.5 ltg/L <br />' ND means not detected at or — <br /> above the reporting limit S NA NA NA NA NA I NA I 1 mg/Kg <br /> 'water and vapor samples are reported inµg11,soil and sludge samples in mg/kg,wipe samples in gg/wipe,and TCLP extracts in gg/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?);fI 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 gas).m)no recognizable pattern. <br /> DHS Certification No. 1644 _Angela Rydelius, Lab Manager <br /> 1 ' <br />