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' 110 2nd Avenue South, #D7 Pacheco CA 94553-5560 McCAMPBELL ANALYTICAL TNC Telephone 925-798-1620 Fax 925-798-1622 ' http//www mccampbell corn E-mail main@mccampbell com ' Advanced GeoEnvironmental Client Project 1D Marlowe Properties Date Sampled 12/26/2001 837 Shaw Road Date Received 12/27/2001 ' Stockton, CA 95215 Client Contact Brian Millman Date Extracted 12/27/2001 Client P O Date Analyzed 12/27/2001 Diesel Range(C10-C23)Extractable Hydrocarbons as Diesel EPA methods modified 8015,and 3550 or 3510,California RWQCB(SF Bay Region)method GCFID(3550)or GCFID(3510) ' aClient ID %Recovery Surrogate 87464 MW1/12-26-01 W ND 84 ' 87465 MW2/12-26-01 W ND 84 87466 MW3/12-26-01 W ND 84 87467 MW4/12-26-01 W ND 98 87468 MW5/12-26-01 W ND 100 87469 MW6/12-26-01 W ND I00 87470 VW1/12-26-01 W ND 97 ' Reporting Limit unless otherwise W 50 ug/L stated,ND means not detected above the reporting limit S 10 mg/kg *water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP/STLC 1 SPLP extracts m ug/L 'cluttered chromatogram resulting in coeluted surrogate and sample peaks,or,surrogate peak is on elevated baseline,or surrogate has been diminished by dilution of original extract 'The following desenptions of the TPH chromatogram are cursory in nature and McCa..pbell Analyttcal is not responsible for their interpretation a)unmodified or weakly modified diesel is significant,b)diesel range compounds are significant,no recognizable pattern,c) aged diesel?is significant),d)gasoline range compounds are significant,e)medium boiling point pattern that does not match diesel (v), f) one to a few isolated peaks present, g) oil range compounds are significant, li) lighter than water immiscible sheen is present i) liquid sample that contains greater than—5 vol %sediment IDHS Certification No 1644 JI—Edward Hamilton,Lab Director