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<br /> CHWfla�` C��n1 CERTIFICATE OF ANALYSIS
<br /> Mail day,,4ugust02, 1999
<br /> Advanced GeolEnvironment;al,
<br /> 4005 N. Wilson Way
<br /> Stocklon, CA. 95205
<br /> Semple Itf Drmtrtion
<br /> SamplelD: PE566G-Ol Sample Type: GorMosite
<br /> Sample Description:-VW 1(Air Sample;Vapor Well Na:l -Project Naini: Marlowe Properties
<br /> DatelTime Sampled: 7,"18199 4:30;00 PM Sample Matrix: Air
<br /> ANALYTICAL RES ULTQAIQC REPORT
<br /> `�.,.�,,,,,.,,,..:.a,�.,.�,.. .��,.-,�,�.m.:.-� -T—.:,�...,.�Y�..�u,:.�,,:_.:,,.,.M.�,.�._: .._.a�.,.n-.. #.,,�.:„_,....-�,<..:�,.�:,d-•,c,_..�._..�-.�.,�.�..,.,,......�.:.,�.-1,.,-_.:,�r:,....—.,a�,�:r_s a�.�. w..�„a�_ �� Dale LCS Spike MS Spike
<br /> 'Test Parameter Method DLR Unit Result Dilution JlAnalyzed Blank Conc. LCSf Cant: HS% MSD RSD%
<br /> TPH-Gasoline EPA0015MOHS 0.D5 rngfL 0.51 1 30Jul-99 ND 0.98 99.0°6 0.32 93.8% 96.9% O.B% 5
<br /> r Benzene EPA&D2D 0.5 uiyL 2.29 1 l 3DJul-99 ND 20 94.5% 2D 105,0% 110.0% 1.2%
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<br /> Toluene EPA BIM0 5 u 82 1 10.5%30-Jul-99 NO 20 95,0% 2D 1150% 112.596 0.5%
<br /> jEthylbenzene EPA 8020 0,5 ugfL 40.87 1 30-Jul-99 ND 20 99.0% 20 1D95% 100.0% 2.3% '
<br /> j XylBnes,Total - _EPA 8020•��- 5” u9rL _+ 120 ». - i »� 30-Ju1-99 ND iD 100.0% 20 1 DF 596 105.09b� 6.5°x~
<br /> i fdethyl-t-Butyl Ether(INtBE) EPA 8020 0.5 ugfL ND 1 i 3D-Jul-99 ND 2t} 97.5Y° 29 96 0% 95.0,6 1.4%
<br /> nrgJL=miA+grnms per Lifer=ppm DLX-Beta 4on Laraf fof fhe Aarpose of RSf3 represent relEtlive peri enl efl(feren+{ieppf b¢nctielr rfrrplirales spike ajsranpies
<br /> ugd_=nrirrograms per Liter=ppb Reporting. Lseepliarrnr sample rnorrieet ur w•DWiwle of Snmpfe
<br /> inrerfereneces rrrnyrrsxtt in hi&-r•dew ion Af AfSD-muasure v the oemf r•erove+' a eeiencies xrrhin the Canrposite C=Groh f !� Y � '
<br /> Knnis
<br /> LCS nieosurn of tPe percent recow:ry oflhe LntiorNeiy Ccrrrlrof Spike(LC:S) �
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<br /> RESPEffULL YW8Af1TrED. ,
<br /> Jonathan Hao V. Le,Laboratory Director
<br /> EpA•finveianaienrelProleclionAg 'hfc?hvr/ page
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<br /> en agetof'1
<br /> SA!-,5`candnrdMerhod forF,xmriirrtuioud�,bFite _Pr�r2 wpm �{ �!, SUi'-6 A, -Sfpc-Kton, CA 95204 Tel.: (209) 462-0692 l=ax: (209) 452-7935
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