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<br /> CERTIFICATE OFAIVALYSIS
<br /> ti Analytical Laboratory
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<br /> TO William Little Friday, October 01, 1999
<br /> Advanced GeoEnvironmental
<br /> 4,= 4005 N Wilson Wa,
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<br /> Stockton, CA 95205
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<br /> Sample Information
<br /> Sample ID PE6017-04 Sample Type Grab
<br /> {3 Sample Descrrplion MW-23 19/23/99 Project Nante Den's Auto Repair
<br /> Date/Tune Sampled 9122199 2 40 00 PM Sample Afatr" Ground Water
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<br /> ANALYTICAL RESULT QAIQCREPORT
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<br /> Date ,LCS Spike MS Spike
<br /> Test Parameter Method DLR Una Result Atiaked Blank Conc. LCS% Con-, MS% MSD RSD
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<br /> TPH-Gasolinen EPA8015MIDHS 50 ug1L 3235 25-Sep-99 rvND 500 9600A n500vrv! 10400/6 1070% Y 070/6
<br /> Methylt-Butyl Ether(Mtm) EPA8260 05 ug/L 250 4 uvn 25-Sep-99 NO 20 900% V20yn 1100°,6h4 4 1350°x6~ 51% j�
<br /> ^. � < o h 7% -
<br /> Diisopropylether(DIPE) EPA8250 05 uglL 17 25-Sep-99 NO 20 950 0 00%
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<br /> � �, u ', n n ♦ v t � xv'�y! r n ,n kR!
<br /> z s Ethyl-t-butyl ether(ETRE) EPA8260 05 uglL ND 25-Sep-99y NO 20 975%y 4 Y 20 4�* 11000/0 10500/0 1 20k ;
<br /> 4
<br /> Text-amylmethyl ether(TAME)x EPA8260 05 uglL 1250 ! � � 25-Sep-99 ND u 187 1070°A°�n � 20V�hA 950°,b ~vf 900° w�i�4",b4� a
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<br /> r � t-Butanol(TBA) EPA8260 05 ug1L ND 25-Sep-99 ND 20 10000/0 20 90 045 875% 07%
<br /> mC A v nvn� nv vM1 v n v n v n r vv v n vrvv v n .p. vn +nmv. n vw ..,,,n n\v,Vy
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<br /> Benzene EPA 8260 05 uglL 900 25-Sep-99 NO 20 100 0% u 20 10500/0 105 0% 0 046
<br /> Toluene v EPA 8260 0 5 ug1L 30 t 25-Sep-99 NO 21 95 2°r6 µ 20* ,r k 87 5% 110 0%u. T45 7°%T
<br /> z Ethylbenzene EPA 8260 05 ugA- 195 25-Sep-99 NO 20 1050% v 20 110 0°/ 125 0%v v 32%
<br /> Xylene[Total) wn r, EPA 8260 0'5 uglL 420 � r � 4 l nn 1,n25-Sep-99 ND 50� Y ,! 93 00/6 x v�x50 1200% 111000% 4 v�N2 Z°k 1 S
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<br /> n v to v 1 n ,v. {.,.v.vv+nv.ha vvnv".n V o n +nvayv.r
<br /> rorlhgrarns per I rterrv=ppno D1.R Detection I rnni for lire f'rnpose ofRepor?rrrg Fxceptraral RFD represent relative percent different(RPD)betwen duphcales spoke ofsanoples
<br /> n uglL—nrrcrogrann per Low=ppb sample mat?rccs or nnerfererreces may result in higher delectron or Duplicate of Sample
<br /> hnuts USWED measure o r3'the ercent recoi e e rerencres ssvlhm the malrrx
<br /> C=Conrposrte G—Crab f P �
<br /> LCS measrueoffhepep rent iccoteivoftheLaboratory ConlrolSpoke(LCS)
<br /> RESPECT U I_YSU T ,
<br /> Jonatli n ao V Le, Laboratory Director
<br /> IPA-FnFrronrnental Proteclton 4gencyhfelhodr Page Y of 1
<br /> n 5,41-Strntdardd �r
<br /> fethodforLwinnnitron094t ra�,���rN"'St Suite A Stockton, CA 95204 Tel (209) 462-0$92 Fax (209) 462-7935
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