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E110 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br />' McCampbell Analytical Inc Telephone 925-798-1620 Fax 925 798-1622 <br /> h //www mcc bellcom E-mail main ca bell corn <br /> Advanced GeoEnvironmental,Inc Client Project ID Flag City Chevron Date Sampled 09/16/03 <br /> 837 Shaw Road Date Received 09/17/03 <br /> Stockton, CA 95215 Client Contact Tim Cuellar Date Extracted 09120103-09/24/03 <br />' rChent P O Date Analyzed 09120103-09/24103 <br /> Gasoline Range(C6-02)Volatile Hydrocarbons as Gasoline* <br />' Extraction method SW50308 Analytical methods SW8015Cm Work Order 0309314 <br /> Lab 11) Client ID Matnx TPH(g) DF %SS <br />' 001A MW8a W ND 1 105 <br /> 002A MW8b W ND 1 106 <br />' 003A MW8c W ND 1 106 <br /> 004A MW9a W ND 1 102 <br />' 005A MW9b W ND 1 105 <br /> 006A MW9c W ND 1 107 <br />' 007A MW12a W ND 1 110 <br /> 008A MW12b W ND I 1 102 <br /> 009A MW12c W ND l 101 <br /> 010A MW12d W ND 1 106 <br /> Reporting Limit for DF=1, W 50 µg/L <br /> ND means not detected at or <br /> above the reporting limit S NA NA <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/solid samples to mg/kg wipe samples in 4g/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 gasohne7,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral sprnt9),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,r)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 Rydebus, Lab Manager <br />