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i <br /> I 10 Second Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Telephone 510-798-1620 Fax 510-798-1622 <br /> b1W//www mccamnbell co m E-mail main@mccampbell com <br />' Le <br /> 123 &27197 <br /> Advanced GeoEnvirorirriental <br /> Client Project ID West Clay Property /28/97 <br />' 1803 West March Lane, Ste A <br /> Stockton, CA 95207 Client Contact Kevin McKibben 5128-06102197Client P O 5128-06/03/97 <br />' Diesel Range(C10-C23)and Oil-Range(C18+)Extractable Hydrocarbons as Diesel and Motor Oil* <br /> FPA methods modified 8015,and 3550 or 3510,California R1vQCB(SF Bay Region)method GCFID(3550)or GCFID(3510) <br />' TPH mo + %Recovery <br /> Lab ID Client ID Matrix TP1I(d)+ { ) Surrogate <br /> 76953 MW-4-25 S ND ND 100 <br />' 76954 MW-5-25 S ND ND 100 <br /> 76955 MW-1/5-27-97 W 130,d,b ND 98 <br /> 76956 MW-2/5-27-97 W 2000,4 <br /> ND 102 <br />' 76957 MW-315-27-97 W 55,d,b ND 100 <br /> 76958 MW-415-27-97 W 56,b ND 108 <br /> 76959 MW-5/5-27-97 W ND ND 101 <br /> f <br /> 1 <br />' Reporting Limit unless otherwise <br /> W 50 ug/L 250 ug/L <br /> stated,ND means not detected above 5 0 m /k <br /> the reporting limit S 1 0 mg/kg ' g <br /> *water samples are reported in ug/L,wtpe samples in ug/t%7pe,soil and sludge samples in mg/kg,and all TCLP/STLC/SPLP extracts in <br />' 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 descriptions 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('?),t7 <br /> nge compounds are significant, h) lighter than water immiscible sheen is present, i) liquid <br /> one to a few isolated peaks present, g)oil ra <br /> sample that contains greater than—5 vol %sediment <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />