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1 <br /> I 10 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' ht Wwww rnec bell com E-mail main mcca bell com <br /> • Advanced GeoEnvl_ronmental, Inc Client Project ID West Clay Properties Date Sampled 03/14/03 <br />' 837 Shaw Road Date Received 03/18/03 <br /> Stockton,CA 95215 Client Contact Paul Dotson Date Extracted 03120/03-03121103 <br />' Client P O Date Analyzed 03/20/03-03/21/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method. SW5030B Analytical methods SW8021BI8015Cm Work Order 0303275 <br />' Lab ID Client 1D Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 017A M W 13 A W ND .__ ND ND ND ND 1 93 0 <br />' 018A MW13B W ND ND ND ND ND 1 93 9 <br /> 019A MWl4A W ND ND ND ND ND 1 95 5 <br />' 020A MW 14B W 56,b — ND 0 92 ND ND 1 95 0 <br /> 021A MW15A W ND,i ND ND ND ND 1 991 <br />' 022A MW 15B W ND,i ND ND ND ND 1 99 7 <br /> I <br /> 023A EW 1 W 8300,a,h 500 400 540 1800 1 -# <br /> 024A EW2 W 490,a 28 10 58 33 l 103 <br /> I <br /> Reporting Lurat for DF=150 5 0 05 0 5 0 5 0 5 1 L <br /> ND moans not detected at or pg <br /> /L <br /> the reporting lunit S+ <br /> NA NA NA NA NA �NA 1 mg/Kg <br /> *water and vapor samples are repotted inµg/L sod and sludge samples In mg/kg,wipe samples in ltg/wipe and TCLP extracts in pg/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 gasolme9),c)lighter gasoline range <br /> compounds(the most mobile&action)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 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 gas) m)no recognizable pattern <br /> DHS Certification No 1644 Angela Rydelius, Lab Manager <br /> �G <br />