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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax :925-798-1622 <br /> hU://www.mccamphfll.co E-mail:main@mccampbell.com <br /> a.. <br /> Advanced GeoEnvironmental Client Project ID:Arco Mini Mart <br /> Date Sampled: 12/31/98 <br /> �. Date Received: 01/05/99 <br /> 4005 North Wilson Way <br /> Stockton, CA 95205 Client Contact:Noel Henderson Date Extracted: 01/08/99 <br /> Client P.O: Date Analyzed: 01/08/99 <br /> Oxygenated Volatile Organics By GC/MS <br /> �.. EPA method 8260 modified <br /> Lab ID 01297 01298 01299 01300 <br /> MW1- MW2- MW3- MW7- Reporting Limit <br /> Client ID 12/31/98 12/31/98 12/31/98 12/31/98 <br /> Matrix W W W W S W <br /> Compound Concentration* ug/kg ug1L <br /> Di-isopropyl Ether(DIPS) ND ND ND ND 5.0 1.0 <br /> Ethyl tert-Butyl Ether(ETBE) ND ND ND ND 5.0 1.0 <br /> Methyl-tert Butyl Ether(MTBE) ND 7.5 17 29 5.0 1.0 <br /> tert-Amyl Methyl Ether(TAME) ND ND ND 1.1 5.0 1.0 <br /> tert-Butanol ND ND ND ND 25 5.0 <br /> Surrogate Recoveries(%) <br /> Dibromot]uoromethane 109 109 106 108 <br /> �.r <br /> Comments: <br /> i, *water samples are reported in ug/L,soil and sludge samples in ug/kg,wipes in ug/wipe and all TCLP I STLC I SPLP extracts in ug/L <br /> ISD 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;0)sample diluted due to <br /> w high organic content <br /> DHS Certification No. 1644 //1 Edward Hamilton,Lab Director <br /> a� <br /> v <br /> 4r <br />