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110 2nd Avenue South 9137,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-796-1620 Fax 925-798-1622 <br /> http//www mccampbell com E mail main@mccampbell corn <br /> • Advanced GeoEnvironmental, Inc Client Project ID Flag City Chevron Date Sampled 07/29/02 <br />' 837 Shaw Road Date Received 07/31/02 <br /> Stockton, CA 95215 Client Contact Tim Cuellar Date Extracted 07/31/02 <br />' Client P O Date Analyzed 07/31/02-0$/02/02 <br /> Diesel(C10-23)and Oil(C18+)Range Extractable Hydrocarbons as Diesel and Motor Oil* <br />' Extraction method SW3510C Analytical methods SW9015C Work Order 0207451 <br /> Lab ID Client ID Matrix TPH(d) TPR(mo) DF %SS <br />' 0207451-00111 Effluent W ND ND 1 109 <br /> 0207451-0028 Influent W ND ND 1 104 <br /> I <br /> f <br /> Reporting Linut for DF=l, W 50 250 µg/L <br /> ND means not detected at or <br /> above the reporting limit NA NA mg/Kg <br /> "water and vapor samples are reported in ug/L,wipe samples to ug/wipe,soil/solid/sludge samples m mg/kg,product/oil/non-aqueous liquid samples <br /> in mg/L,and all TCLP I STLC I SPLP extracts in ug/L <br /> #cluttered chromatogram resulting in cocluted surrogate and sample peaks,or,surrogate peak is on elevated baseline,or,surrogate has been <br /> diminished 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), <br /> d)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 /> I 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 vol %sediment,k)kerosene/kerosene range,l)bunker oil,m)fuel oil,n)stoddard solvent <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />