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I 10 2nd Avenue South,nD7,Pacneco,CA 94553-5560 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 ' http//www mccampbell com E-mail mam@mccaxnpbell com ' Advanced GeoEnvironmental Client Project ID Pacific Pnde/S El Date Sampled 12/20/01 ^ 837 Shaw Road Dorado Date Received 12/21/01 Stockton, CA 95215 Chent Contact Tim Cuellar Date Extracted 12/21/01 Client P O Date Analyzed 12/21/01 Diesel Range(C14-C23) and Oil-Range(C18+)Extractable Hydrocarbons as Diesel and Motor Oil* EPA methods modified 8015 and 3550 or 3510,California RWQCB(SF Bay Region)method GCFID(3550)or GCFID(3510) Lab ID Client ID Matnx TPH(d)' TPH(mo)} %Recovery Surrogate 87271 MWI/12-20-01 W 3700,d ND 99 ' 87272 MW2/12-20-01 W ND ND 100 87273 MW3/12-20-01 W ND ND 100 i87274 MW4/12-20-01 W ND ND 100 87275 MW5/12-20-01 W ND ND 101 87276 MW6/12-20-01 W ND ND 101 87277 MW7/12-20-01 W 2700,d ND 104 1 Reporting Limit unless otherwise W 50 ug/L 250 ug/L ' stated,ND means not detected above the reporting limit S 1 0 mg/kg 5 0 mg/kg *water samples are reported in ug/L,wipe samples in ug/wipe soii and sludge samples in mg/kg,and all TCLP/STLC/SPi,P extracts to ug/L a 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 tollowing descriptions of the TPH chromatogram are cursory in nature and McCampbeil Analytical is not responsible for then interpretation a)unmodified or weakly modified diesel is significant,b)diesel range compounds are significant,no recognizable pattern,c) aged diesels is significant),d)gasoline range compounds are signtrkam,e)medium boiling point pattern that does not match diesel(?), 0 one to a few isolated peaks present, g)oil range compounds are significant h)lighter than water immiscible sheen is present 1) liquid sample that contains greater than--5 vol %sediment DHS Certification No 1644 Edward Hamilton,Lab Director