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110 2nd Avenue South #D7,Pacheco,CA 94553-5560 <br /> LAO McCarx>pbell Analytical Inc Telephone 925-798 1620 Fax 925-798-1622 <br /> h 1/www mccarripbell com E-mail mamQmccampbell cam <br /> . Advanced GeoEnvironmental,Inc Client Project ID Flag City Chevron Date Sampled 10/30/02 <br /> 837 Shaw Road Date Received 10/31/02 <br /> Client Contact Tim Cuellar Date Extracted 10/31/02 <br /> Stockton, CA 95215 <br /> Client P O Date Analyzed 10/31/02-11/06/02 <br /> Diesel Range(C10-C23)Extractable Hydrocarbons as Diesel* <br /> ztmction method SW3510C Analyheal methods SW8015C Work Order 0210564 <br /> Lab ID Client ID Matrix TPH(d) DF %SS <br /> 0210564-OOIC P-36/25' W 79,b i 1 101 <br /> 0210564-0020 P-36/50' W 50,b,i 1 101 <br /> 0210564-0030 P-38125' W II00,b,g,i 1 104 <br /> 0210564-004C P-38150' W ND,i 1 994 <br /> Reporting Limit for DF=1, W 50 µglL <br /> ND means not detected at or <br /> above the reporting limit 5 NA NA <br /> *water and vapor samples are reported in ug/L wipe samples in ug/wipe,soil/solid/sludge samples in mg/kg,product oil/non-aqueous liquid samples in <br /> mglL and all TCLP/STLC/SPLP extracts in ug/L <br /> #cluttered chromatogram resulting in coeluted surrogate and sample peaks,or,surrogate peak is on elevated baseline,or,surrogate has been diminished <br /> by dilution of original extract <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 diesel is significant,b)diesel range compounds are significant,no recognizable pattern,c)aged diesel?is significant),d) <br /> gasoline range compounds are significant,e)unknown medium boiling point pattern that does not appear to be derived from diesel(corn oil?),f)one to a <br /> few isolated peaks present g)oil range compounds are significant h)lighter than water immiscible sheen/product is present,1)liquid sample that <br /> contains greater than--2 vol %sediment,j)sample diluted due to high organic content,k)kerosenelkerosene range,1)bunker oil m)fuel oil,n)Stoddard <br /> solvent,o)sample diluted due to matrix interference <br /> iDHS Certification No 1644 Edward Hamilton, Lab Director <br />