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1 10 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 124 1 MCCAWBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> htm//www mccamnbell.com E-mail:main@mccampbell.com <br /> Advanced Geolinvironmental Client Project ID:USDB; Sears Date Sampled: 06/03/98 <br /> 4005 North Wilson Way Date Received: 06/04/98 <br /> Stockton, CA 95205 Client Contact:Bill Little Date Extracted: 06/04/98 <br /> Client P.O: Date Analyzed: 06/04-06/05/98 <br /> Multi-Range(Gasoline,Diesel,Motor Oil)TPH as Diesel <br /> EPA methods modified 8015,and 3550 or 3510;California RWQCB(SF Bay Region)method GCFID(3550)or GCFID(3510) <br /> Lab ID Client ID Matrix TPH(Gas)' TPH(Diesel)' TPH(MotorOil)' %Recovery <br /> (C6-Cl2) (C10-C23) (>C18) Surrogate <br /> 90058 PI-15 S ND ND ND 94 <br /> 90059 PI-10 S ND ND ND 94 <br /> 90060 P2-10 S ND ND ND 94 <br /> 90061 P2-15 S ND ND ND 95 <br /> 90062 P3-5 S ND ND ND 92 <br /> 90063 P4-5 S ND ND ND 92 <br /> 90064 PS-10 S ND ND ND 97 <br /> 90065 P5-15 S ND ND ND 92 <br /> 90066 P6-10 S ND ND ND 96 <br /> Reporting Limit unless otherwise W 50 ug/L 50 ug/L 250 ug/L <br /> stated;ND means not detected above <br /> the reporting limit S 1.0 mg/kg 1.0 mg/kg 5.0 mg/kg <br /> •water samples are reported in ugIL,soil and sludge samples in mg/kg,wipes in ug/wipe and all TCLP/SPLP extracts in mg/L <br /> "cluttered chromatogram resulting in surrogate and sample peak coelution,or;surrogate peak is on elevated baseline,or;surrogate has been <br /> diminished by dilution of original extract. <br /> °oil-range compounds are not fully recovered by this GC methodology <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(?);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 />