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' 110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> ' h l/www mecampbell corn E-mail main@mccampbell com <br /> Ground Zero Analysts,Inc <br /> Client Project ID #98-186,Knowles Date Sampled 11/10/98 <br /> 1714 Maui Street Rock Date Received 11/12/98 <br /> Escalon,CA 95320 Client Contact Greg Stahl Date Extracted 11/13-11/14/98 <br /> Client P O Date Analyzed 11/13-11114198 <br /> Oxygenated Volatile Organics By GUMS <br /> EPA method 8260 modified <br /> Lab ID 98512 98513 98514 98515 <br /> ' Reporting Limit <br /> Client ID KR MW 1 KR MW3 KR MW4 KR MW l l <br /> ' Matrix W W W W S W <br /> Compound Concentration* uglkg ug/L <br /> Di-isopropyl Ether(D1PE) ND ND<10 ND<100 26 50 10 <br /> Ethyl tert-Butyl Ether(ETBE) ND ND<10 ND<100 ND 50 10 <br /> Methyl-tent Butyl Ether(MTBE) ND 220 7000 ND 50 1 0 <br /> Cert-Amyl Methyl Ether(TAME) ND ND<10 ND<100 ND 50 1 0 <br /> ' tert-Butanol 64 ND<50 ND<500 35 25 so <br /> ' Surrogate Recoveries(%) <br /> Dibromotluoromethane 100 100 I00 98 <br /> Comments <br /> ' •water samples are reported in 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 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 /> high organic content <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />