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CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> FridaJS October 15, 1999 <br />�i <br /> TO: William Little <br /> Advanced GeoEnvironmental, <br /> N. <br /> 4005 N. Wilson Way <br />,ter Stockton, Ca. 95205 <br /> Z", <br /> K <br /> r{ Sample Imfoi-inatiom <br /> �,. <br /> Sample ID: PE6167-04 Sample P <br /> le T r e: Grab <br /> P P J <br /> r <br /> Sample Description: TK2S Project Nature: Quick&Save 7200 S. Eldo <br /> Date/Tinte Sampled: 10/13/99 12:50:00 PM Sample Man-ty: Soil <br /> tzR ANALYTICAL RESULT l QAIQCREPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Colic. MS% MSD RSD% <br /> TPH-Gasoline EPA 8015M/DHS 1 mghKg ND 13-Oct-99 ND 500 112.0% 500 96.0% 98.0% 0.5% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 5 ug/Kg 17970 13-Oct-99 ND 70 114.3% 70 114,3% 125.7% 2.4% <br /> Diisopropyl ether(DIPS) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 107.1% 70 117.1% 125.7% 1.8% <br /> 4.6 <br /> rhl' <br /> y'� w-•-�wvw-w- vm-wv++-.ww«+vw<mmm�vww.ew.--�wm..wwww+mnw�armanarne m <br /> Ethyl-t-butyl ether(ETBE) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 102.9% 70 107.1% 110.0% 0.7% <br />`t Tert-amyl methyl ether(TAME) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 101.4% 70 110.0% 111.4% 0.3% <br /> t-Butanol(TBA) EPA8260 5 ug1Kg ND 13-Oct-99 ND 70 102.9% 70 92.9% 100.0% 1.9% <br /> 1 - Benzene EPA 8260 5 ug/Kg ND 13-Oct-99 ND 20 110.0% 20 110.0% 125.0% 3.2% <br />► Toluene EPA 8260 5 ug/Kg ND 13-Qct-99 ND 20 90.0% 20 110.0% 135.4% 5.1% <br /> Ethyl Benzene EPA 8260 5 ug/Kg ND 13-Oct-99 ND 20 100.0% 20 125.0% 140.0% 2.8% <br /> Xylene,Total _ EPA 8260 5 ug/Kg . ND 13-Oct-99 ND �40. 105.0% .5% 135.0% 0.5% <br /> { - _ .. - 40 137 <br />' nrk/L=-Milligr•anrs per biter=ppin DLR-Delection limit for thePrrtpose'of Reporting. RSD-represent relative percent-different(RPD)between duplicates spike of samples <br /> ug/L=nricrogrmns per Liter=ppb L-Vceptional sample rnarrices or interfererieces may resuh in or Duplicate of Sample <br /> t higher detection limitsh?S/MSD-measure of rlre per cent f•ecovery efficiencies within the mattIx <br /> t.. C=Composite G=Grab <br /> LCS-measure of the percent recovery of the Laboratoy Control Spike(LCS) <br /> RESP TFULL�-'sU VATTED,, <br /> Kh <br />'s'r= <br /> Jonathan.Han V Le,Laboratog Director <br />�45 <br /> EPA-Emvirounental Protection Agency.Method. � Page 1 of <br /> r Sh1 Strindard Method for Lzainrirrarion r '�te -nl Sit. Suite A Stockton, CA 95204 Tel.: (209) 462-0892 Fax: (209) 462-7935 <br />