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1 <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 14 htM//www mccampbell c9rB E-mail main@mccampbell com <br />' Advanced GeoEnvironirnental Client Project ID West Clay Date Sampled 03/13/01 <br /> 837 Shaw Road Date Received 03/15/01 <br />' Stockton,CA 95215 Client Contact Paul Dotson Date Extracted 03/15-03/21101 <br /> Client P O Date Analyzed 03115-03/21101 <br /> Diesel Range(C10-C23)Extractable Hydrocarbons as Diesel * <br /> EPA methods modified 8015,and 3550 or 3510,California RWQCB(SF Bay Region)method GCFID(3550)or GCFID(}510) - <br />' Lab ID Client ID Matrix TPH(d)+ %Recovery <br /> Surrogate <br /> 62688 MW1/031301 W 90,d 108 <br />' 62689 MW2/031301 W 1000,d 101 <br /> 62690 MW3/031301 W ND 102 <br />' 62691 MW5/031301 W ND 96 <br /> 62692 MW6A/031301 W ND 103 <br /> 62693 MW6B/031301 W ND 102 <br /> 62694 MW7/031301 W ND 104 <br /> 62695 MW8A/031301 W ND 101 <br /> 62696 MW8B/031301 W ND 100 <br /> 62697 MW9/031301 W ND 99 <br />' 62698 MW10/031301 W 60,000,a,h 83 <br /> 62699 MW 11 A/031301 W ND 97 <br /> 1 62700 MWl 1B/031301 W 110,b 100 <br />' 62701 MW12A/031301 W 68,b 112 <br /> Reporting Limit unless otherwise W 50 ug/L <br /> stated,ND means not detected above <br />' the reporting limit S 1 0 mg/kg <br /> •water and vapor samples are repotted in uglL,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and ail TCLP/STLC/SPLP <br /> extracts in ug/L <br /> "cluttered chromatogram resulting in coeluted 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 descnptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> interpretation a)unmodified or weakly modified diesel is significant,b)diesel range compounds are significant,no recognizable pattern,c) <br /> aged diesel?is significant),d)gasoline range compounds are significant,e)medium boiling point pattern that does not match diesel(v),f) <br /> f 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 /> 1 <br />