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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> FhJ4 MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell com E-mail marn@a mccampbell corn <br /> Advanced GeoEnvironmental Client Project ID Flag City Chevron Date Sampled 09/06/01 <br /> 837 Shaw Road Date Received 09/07/01 <br /> IStockton, CA 95215 Client Contact Tun Cuellar Date Extracted 09/14/01 <br /> Client P O Date Analyzed 09/14/01 <br /> Seven Oxygenated Volatile Organics By G= <br /> EPA method 8260 modified <br /> Lab 1D 77248 77249 77250 <br /> EW8/ EW9/ EW-10/ Reportaig LimitClient ID 09-06-01 09-06-01 09-06-01 <br /> Matrix W W i W S W <br /> Compound Concentration* ug/kg ug/L <br /> Di-isopropyl Ether(DIPE) ND ND ND 50 1 0 <br /> Ethyl tert-Butyl Ether(ETRE) ND ND ND 50 1 0 <br /> Methyl tert-Butyl Ether(MTBE) 13 54 ND 50 10 <br /> tert-Amyl Methyl Ether(TAME) ND ND ND 50 10 <br /> tent-Butanol ND ND ND 25 50 <br /> Methanol ND ND ND 2500 500 <br /> Ethanol ND ND ND 250 50 <br /> Surrogate Recoveries(%) <br /> Dibrornofluoromedme 101 99 100 <br /> Comments <br /> *water samples are reported m ug/L,soil and sludge samples in ug/kg,wipes in ug/wipe and all TCLP/STLC/SPLP extracts in ug/L <br /> ND means not detected above the reporting limit,N/A means surrogate not applicable to tins analysis <br /> (h)lighter than water immiscible sheen is present,(i)liquid sample that contains greater than—5 vol %sediment,0)sample diluted due to <br /> high organic content <br /> • <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br /> I <br />