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5AZr-NWP EO-TrC H CERTIFICATE OF ANALYSIS <br /> nc-v1 /t 1i=a/ Tuesday,April 24,2001 <br /> TO. William Little <br /> Advanced GeoEnvlronrnental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Sample Information <br /> Sample ID: PE11268-01 Sample Type: Grab <br /> Sample Description: 040901-MW 1 A Project Name. Den's Auto Repair <br /> Date/Time Sampled: 04/09/20014 30 00 PM Sample Matrix: Ground Water <br /> s selwC- _ <"r - ZS flilY... f -Y�C..z� 1rY�sv aG4..e4w.LR�"R��< �_]S' Pt•�_keHS > � � xtit.�^SYYIC'h&`"i�'X-0"`SP.s+<..i ...xs-ate wx ['WCa*Yc ici�i<.Xf Y.-w� fl EzmS[A`CK'iStKrx'4S.T.'x"i�t^aSSSt fPflrs:NY^'K�'YF.ce� NiY�1�a <br /> ANALYTICAL RES UL T QAIQC REPORT m y x <br /> n yes Y r J P„ �.� R 1�i��x X a rtt.T"•-h w_...s- - �n nY a`43kt `%��e*SSP' vwM Y c X.a_ K .... n t ^S . 'rf tCY. .k.C'�.. .✓pct _"1.'a...^^w�i r 1.s axanslY.YF.:t i^['s. _atia.:M'+AS+»ua-' <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Cone MS% MSD RSD <br /> TPH-Gasoline EPA 8015M/DHS 50 ug/L 6080 13-Apr-01 ND 500 960% 500 980% 980% 00% <br /> Methyl t-Butyl Ether(MtBE) EPA 8260M 05 ug/L ND 13-Apr-01 ND 32 1027% 32 991% 1014% 06% <br /> Di-isopropyl ether(DIPE) EPA 8260M 05 ug/L ND 13-Apr-01 ND 16 1034% 16 988% 1031% 1 1% <br /> Ethyl-t-butyl ether(ETRE) EPA 8260M 05 ug/L ND 13-Apr-01 ND 16 968% 16 967% 961% 01% <br /> Tort-amyl methyl ether(TAME) EPA 8260M 05 uglL ND 13-Apr-01 ND 16 1006% 16 936% 906% 08% <br /> t-Butanol(TBA) EPA 8260M 10 ug/L ND 13-Apr-01 ND 200 970% 160 936% 1063% 31% <br /> Benzene EPA 8260M 05 ug/L 1284 13-Ap'r-01 ND 32 961% 32 988% 956% 08% <br /> Toluene EPA 8260M 05 ug/L 62 13-Apr-01 ND 32 953% 32 996% 939% 15% <br /> Ethylbenzene EPA 8260M 05 ug/L 300 13-Apr-01 ND 32 942% 32 997% 92 0% 20% <br /> Xylene(Total) EPA 8260M 05 ug/L 106 13-Apr-01 ND 32 95 6. 32 996% 956% 10% <br /> 1,2-Dichoroethane(DCA) EPA8260 05 ug/L ND 13-Apr-01 ND 16 969% 16 1063% 1031% 07% <br /> Ethylene Dibromide(EDB) EPA 8260 05 ug/L ND 13-Apr-01 ND 16 969% 16 988% 981% 02% <br /> Methanol EPA 8260 25 ug/L ND 13-Apr-01 ND 100 1000% 100 960% 980% 05% <br /> Ethanol EPA 8260 25 ug/L ND 13-Apr-01 ND 98 1020% 100 980% 960% 05% <br /> mg/L =millrgiams per Liter=ppor RSD-represent relative percent different(RPD)between duplicates spike ofsamples <br /> ug/L—nucrograms per Liter=ppb or Duplicate of Sample <br /> RESPE T LL ED, MS/MSD-measure of the percent recovery efficiencies wahrn the matrix <br /> r C=Composite G=Grab <br /> LCS-measure of the percent recovery of the Laboratory Control Spike(LCS) <br /> DLR-Detection Lumt fo the Purpose of Reporting Evicepuonal sample <br /> .Iotlat an Hao V. Le.Laboratory Director matrices or interfereneces may result in higher detection limits <br /> EPR-Enurornrental Protection Agemcy Method Page I of I <br /> SM Standard tifetlrodfo Exananatrorto( r ' eve anB�iS Suite A Stockton, CA 95204 Tel (209) 462-0892 Fax (209) 462-7935 <br />