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110 2nd Avenue South #D7,Pacheco,CA 94553-5560 <br /> F4 McCampbell Analytical Inc I Telephone 925-798 1620 Fax 925 798-1622 <br /> http Ilwww niccampbelJ com E-mail mainmcca bell corn <br /> Advanced GeoEnvironmental, Inc Client Project ID Flag City Chevron Date Sampled 12/09/03 <br /> 837 Shaw Road Date Received 12/10/03 <br /> Stockton, CA 95215 Client Contact Tun Cuellar Date Extracted 12/10/03 <br /> Client P O Date Analyzed 12/10/03-12/11/03 <br /> Diesel Range(C10-C23)Extractable Hydrocarbons as Diesel* <br /> xtraction metbod SW3510C Analytical methods SW8015C Work Order 0312187 <br /> Lab ID Client ID Matrix TPH(d) DF %S5 <br /> 0312187-019A CSA-1 W ND 1 106 <br /> 0312187-020A CSA-2 W ND 1 110 <br /> i <br /> f <br /> Reporting Lima for DF=1, W 50 <br /> ND means not detected at or <br /> above the reporting limit 5 NA NA <br /> *water samples are reported in jig/L,wipe samples inµg/wipe,soil/solid/sludge samples in mg/kg,prOduLt/oll/non-aqueous liquid samples in mg/L,and <br /> all DISTLC/STLC I SPLP/TCLP extracts are reported inµg/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 dieseh is significant),d) <br /> gasoline range compounds are significant,e)unknown medium boiling point pattern that does not appear to be derived from diesel,f)one to a few <br /> isolated peaks present,g)oil range compounds are significant,h)lighter than water immiscible sheen/product is present,i)liquid sample that contains <br /> greater than—2 vo€ %sediment k)kerosene/kerosene range,1 bunker oil,m)fuel oil,n)stoddard solvent/mmeml spirit <br /> . DHS Certification No 1644 gela Rydelius, Lab Manager <br />