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4 <br /> �0 � ICC rI CERTIFICATE OF ANALYSIS <br /> Arra/ytical Laboratory Weeltresd?V,November 10, 1999 <br /> TO: Jay Jahangiri/Mike Luksic <br /> Port of Stockton <br /> >:r 2201 W, Washington St. <br /> Stockton Ca. 95205 <br /> r' Sample Infarmation <br /> Sample ID: PE6255-04 Sample Type: Grab <br /> Sample Description: MW5-3 Duplicate Project Name: Monitoring Well <br /> Date/Time Sample& 10/22/99 2:22:00 PM Sample Matri_r: Ground Water <br /> ANALYTICAL RESULT QAIQCREPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Conc. MS% MSD RSD <br /> TPI(-Gasoline EPA 8015MIDHS 50 uglL NO 25-Oct-99 NO 1000 108.0% 1000 108.0% 105.8% 0.5% <br />- Methyl t-Butyl Ether(MtBE) EPA8260 0.5 uglL �Nfl J 25-Oct-99 NO 40 87.5% 40 67.5% 105.0% 4.5% <br /> ` Benzene EPA 8260 0.5 uglL� NO 25-Oct-99 NO 40 95.0% 40 137.5% 140.0% 0.5% <br /> Toluene EPA 8260 0.5 ug1L NO 25-Oct-99 ND 40 95.0% 40 120.0% 130.0% 2.0% <br /> Ethylbenzene EPA 8260 0.5 uglL NO 25-Oct-99 NO 40 87.5% 40 102.5% 120.0% 3.9% <br /> Xylene(Total) EPA 8260 �0.5� uglL NO 25-Oct-99 ND 80 93.8% 80 143.8% 156.3% 2.1% <br /> rrrg,,'1-=milligrares Ixr Lifer_ppm MR-Delection Lirnitfor the Purpose of Reporting, � ILS/)-represent relative percent different(RPD)benreen duplicates spike rlfsamples <br /> ug/1. =nricrograins per Liler-ppb E'sceptional sample mairic•es or interfereneces may resell in or Uaplicate of Sample <br /> higher detection lunils tlShllSD-nrensnre of the percent recover}'efficiencies within the malrix <br /> C=Cornposife G - Groh <br /> -; LCS-measure of lire percent recovery of the Laboratory Control Spike(LC5) <br /> l i.. <br /> RES TFU IITTED, <br /> -Y� <br /> Jonathan Hao V Le, Lahoratory Director <br /> EPA-Enviromnerrtal Prnlec7inrr:Igency dlerlrad, Page 1 of I <br /> 5',1!-.Gandrrrcl.llellrnrlfnrl:scmrirrafiorr� il3rt� I��� I1�1, S110 A Stockte+n, CA 55?04, Tel.: (209) 462-0892 Fax- (?091 46?-79: 5 <br />