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j <br /> 110 2nd Avenue South, #D7, Pacheco,CA 94553-5560 <br /> WCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell tom E-mail main@mccampbcll com <br /> Date Sampled 07/05/00 <br /> Environmental Science Associates Client Project ID #200252, Stockton <br /> Date Received 07/07/00 <br /> 225 Bush Street, Suite 1700 <br /> Client Contact Peter Hudson Date Extracted 07/07/00 <br /> San Francisco, CA 94104 Client P O Date Analyzed 07108-07/12/00 <br /> Oxygenated Volatile Organics By GC/MS <br /> EPA method 8260 modified <br /> Lab ID 42270 42271 42272 42273 <br /> Reporting Limit <br /> Client ID TPI-12' TPI-16' TP1-20' TPI-24' <br /> Matrix S S S S S w <br /> Compound Concentration* ug/kg uP/- <br /> Di-isoprapy] Ether(DIPE) ND ND ND Np 50 1 0 <br /> Ethyl tert-Butyl Ether(ETBE) ND ND ND ND 50 to <br /> Methyl-ten Butyl Ether(MTBE) ND ND ND ND 50 10 <br /> Cert-Amyl Methy{ Ether(TAME) ND ND ND ND 50 10 <br /> Cert-Butanol ND ND ND ND 25 50 <br /> Surrogate Recoveries(%) <br /> Dibrortwfluoromethane 112 114 116 117 <br /> Comments <br /> *water samples are reported in ug/L,soil and sludge samples in ug/kg,wipes in ug/wipe and all TCLP 1 STLC I SPLP extracts in ug/L. <br /> ND means not detected above the reporting limit,NIA means surrogate not applicable to this analysis <br /> (h)lighter than water immiscible sheen is present,(i)liquid sample that contains greater than—5 vol %sediment,6)sample diluted due to <br /> high organic content <br /> r <br /> DHS Certification No 1644 _Edward Hamilton,Lab Director <br /> J <br />