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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> . McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> ' Advanced GeoEnvironmental Client Project ID Chase Chevrolet-Madison Date Sampled 02/08/96 <br /> ' 1803 West March Lane, Ste A Date Received 02/13/96 <br /> Stockton CA 95207 Client Contact Kevin McKibben Date Extracted 02/15/96 <br /> Client P O Date Analyzed 02/15/96 <br /> Diesel Range(Ct0-C23),Motor Oil Range(> C18) Extractable Hydrocarbons as Diesel&Motor Oil <br /> EPA methods modified 5015 3.,11110,,,1510,California RW CB SF Bav Region)method GCFID 3550 or GCFID 3510 <br /> ' Lab ID Client ID Matrit TPH(d)+ TPH(mo)} % Recovery <br /> Surrogate <br /> ' 61427 MW-112-8-96 W ND ND 97 <br /> 61428 MW-212-8-96 W ND ND 98 <br /> 61429 MW-412-8-96 W ND ND 98 <br /> 61430 MW-512-8-96 W ND ND 90 <br /> ' F61431 MW-812-8-96 W ND ND 90 <br /> F61432 MW-1112-8-96 W ND ND 91 <br /> 61433 MW-1212-8-96 W ND ND 92 <br /> 61434 MW-1312-8-96 W ND ND 93 <br /> k <br /> 61435 MW-1812-8-96 W ND ND 91 <br /> I � <br /> ' Reporting Limit unless other- W 50 ug/L 250 ug/L <br /> wise stated,ND means not de- <br /> tected above the reporting limit S 1 0 mg/kg 5 0 mg/kg <br /> ' * water samples are reported in ug/L,soil samples in mg/kg,and all TCLP and STLC extracts in mg/L <br /> 9 cluttered chromatogram resulting in coeluted surrogate and sample peaks, or, surrogate peak is on elevated <br /> baseline,or,surrogate has been diminished by dilution of original extract <br /> + The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> responsible for their interpretation a) unmodified or weakly modified diesel is significant b) diesel range <br /> compounds are significant,no recognizable pattern, c)aged diesel'? is significant),d)gasoline range compounds <br /> ' are significant, e) medium boiling point pattern that does not match diesel ('?), fj one to a few Speaks <br /> pi esent,g)oil range compounds are significant,h)lighter than water immiscible sheen is present,i) liquid sample <br /> that contains gi eater than— 5 vol % sediment <br /> DHS Certification No 1644 — Edward Hamilton,Lab Dit ector <br />