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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> WCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-7984622 <br /> h //www mccam bell coin E-mail main@mccampbell cam <br /> Advanced GeoEnvironmental Client Project ID Flag City Chevron Date Sampled 01./03/02 <br /> 837 Shaw Road Date Received 01/04/02 <br /> Stockton, CA 95215 Client Contact Tun Cuellar Date Extracted 01/04/02 <br /> Chent P O Date Analyzed 01/04/02 <br /> Diesel Range(C10-C23)and Oil-Range(C18+)Extractable Hydrocarbons as Diesel and Motor Oil* <br /> EPA methods modified 8015,and 3550 or 3510 California RWQCB(SF Bay Region)method GCFID(3550)or GCFID(3510) <br /> Lab 1D Client ID Matrix TPH(d)' TPH(mo)' %Recovery <br /> Surrogate <br /> 87789 Influent W ND ND 99 <br /> 87790 Effluent W ND ND 102 <br /> Reporting Limit unless otherwise W 50 ug/L 250 ug/L <br /> stated,ND means not detected above <br /> the reporting limit S I 0 mg/kg 5 0 mg/kg <br /> "water samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP/STLC/SPLP extracts in <br /> ugfL <br /> k cluttered chromatogram resulting in coeluted surrogate and sample peaks,or,surrogate peak:s on elevated baseline,or,surrogate has been <br /> diminished by dilution of original extract. <br /> 'The following descriptions of the TPH chromatogram are wrsory in nature and McCampbell Analytical is not responsible for their <br /> interpretation a)unmodified or weakly modified diesel is significant b)diesel range compopnds are significant,no recognizable pattern,c) <br /> aged diesel's is significant),d)gasoline range compounds are significant,e)medium boiling point pattern that does not match diesel (h), f) <br /> one to a few isolated peaks present, g) oil range compounds are significant, h) lighter than water immiscible sheen is present, i) liquid <br /> sample that contains greater than�5 vol %sediment <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />