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® E NWHROM U MCERTIFICATE OF ANALYSIS <br /> � Ana /ytica/ Laboratory <br /> Monday, November 01, 1999 <br /> TO: William Little <br /> Advanced GeoEnvironmental, <br /> 4005 N . Wilson Way <br /> j Stockton , Ca. 95205 <br /> i <br /> Sample Information <br /> Sample ID: PE6245-05 Sample Type: Grab <br /> ' Sample Description: TK 2 E- 13 ' Project Name: Quick & Save 1901 So. Eldo <br /> � . : Drde/TimeSample& 10/21 /99 1 : 15 : 00 PM SarnpleMatrix. Soil <br /> Gmom, <br /> ANALYTICAL RESULT_ ^_ QA/QCREPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Cone. LCS% Cone, MS% MSD RSD <br /> Lead (Pb) EPA 6010 _ 1 mg/Kg 49 01 -Nov-99 ND 0.02 91 .6% 0.02 114.4% 118.0% 0.8% <br /> rim. i TPH-Gasoline EPA 8015M/DHS 1 mg/Kg 3670 25-Oct-99 IND 0.5 96.0% 0.5 102.0% 90.0% 3. 1 % <br /> Methyl t-Butyl Ether (MtBE) EPA8260 5 ug/Kg 155 25-Oct-99 ND 40 87.5% 40 87.5% 105.0% 4.5% <br /> Diisopropyl ether (DIPE) EPA8260 5 ug/Kg ND 25-Oct-99 ND 40 95.0% 40 95.0% 97.5% 0.6% <br /> Ethyl-t-butyl ether (ETBE) EPA8260 _ 5 ug/Kg ND 25-Oct-99 ND 40 90.0% 40 90.0% 97.5% 2.0% <br /> Tert-amyl methyl ether (TAME) EPA8260 5 ug/Kg 6740 25-Oct-99 ND 40 100.0% 40 105.0% 102.5% 0.6% <br /> _.1 ., [' <br /> :y :[, ..+ t-Butanol (TBA) EPA8260 5 ug/Kg 114 25-Oct-99 ND 40 87.5% 40 87.5% 85.0% 0.7% <br /> --i. ` � ; Benzene EPA 8260 5 ug/Kg 65 25-Oct-99 ND 40 95.0% 40 137.5% 140.0% 0.5% <br /> Toluene EPA 8260 5 ug/Kg 5570 25-Oct-99 ND 40 95.0% 40 120.0% 130.0% 2.0% <br /> ? Ethyl Benzene EPA 8260 5 ug/Kg 2930 25-Oct-99 ND 40 87. 5% 40 102.5% 120.0% 3.9% <br /> Xylene, Total EPA 8260 5 ug/Kg 26720 25-Oct-99 ND 80 93.8% 80 143.8% 156.3% 2. 1 <br /> lnrgI miffigiams per Liter ppn, OLIi Delecooti Immulfor the Purpose of Reporting. RSD- represent relative percent diferent (RPD) behreenduplicalesapikeof.samples <br /> %`iif 4. /, ncrogrnnis per Luer 1717hExceptional mnyl t Tera inte,fr enecer ,nal rend? in or Duplicate rfSample <br /> K .j higher detearon Notts AtSr MSO mcosure of lire percent Pecos cr7, effr'cienc,es it uhin the matrix <br /> C - Cmnpo.stte G = Groh rca.rur <br /> j ? LCS- n eofthe percent r econety of the Laboratory Cartrolsptke (LCS) <br /> 1 ' RESP C rif UL Y�fj1_ JBMITTED, <br /> Jo, atllan Ilao V. Le, Laboratory Director <br /> h <br /> I'. <br /> 1 IiPA-F,rrvironrnenlnl I'r'otection Agency Method. Page l of <br /> r <br /> _. s <br />