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�HWd Kms-Lir, rd <br /> '4na/ytical Laboratory CERTIFICATE OF ANALYSIS <br /> TO Tim Cuellar rridaY,November 05, 1999 <br /> Advanced Geo Environmental, <br /> 4005 N Wilson Way <br /> Stockton, Ca 95205 <br /> Samide Information <br /> Sample ID PE6210-01 Sample Type Grab <br /> Sarrrple Description VW-1 Vapor Extraction Well No 1 Projeet Nance Marlowe Properties <br /> Dale17inte Sampled 1 0/1 8199 8 30 00 AM <br /> Sarrrple Matrra Air <br /> ANALYTICAL RESULT— — QA/QC REPORT <br /> Test Paranieter Date __- LCS Spike MS Spike <br /> Method DLR Unit Result Analyzed Blank-- -� ---w---- Cone LCS% Colic MS% MSD RSD <br /> 7PH Gasoline EPA 8015M/DHS 50 ugILTT 10y0 <br /> 20-Oct-99 ND 5 960% 5 96 0% 980% 05% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 05`�uglL ND <br /> - ___ __ 20-Oct-99 ND 20 100 0% 20 90 0% 95 0% 1 4% <br /> ----------------- <br /> Benzene EPA 8260 0 5 uglL NO <br /> 20-Oct-99 NO 20 900% 20 1100% 1050% 12% <br /> Toluene EPA 8260 05 <br /> uglL 3 6 20-Oct-99 NO 20 85 0% 20 900% 950% 14% <br /> Ethylbenzene EPA 8i6—o ------- uglL 2 1 <br /> _ _ 20-Oct-99 ND 20 950% 20 110'01/11105 0% 12% <br /> Xylene(Total) EPA 8260--o 5 --- 16 7 <br /> 20-Oct-99 ND 40 87 5% 40 0 <br /> nig L =nu!lrgram s per LNc r =ppnr D!R De"clrurr!rrrul top the I'rrr pau of llepnrlurg 125 0/0 1150% 21% <br /> ugrl =micrograms per Luer =ppb Lrceplronal s(unplc mao rcc s or rrNc rferenccec mai rc sull rn RSD represent r elan+e percent different(RPD}behi een dnphcales spike of samples <br /> ('—Canposue G=Grab <br /> !nglrcr delcclron lurnls or Dtrphcale af5anrple <br /> tWAISD nreasnre of die percen,recover) efricrencres n rthm the malrrx <br /> I CS mcasnre of the lrercuu recover} of the l aborator} C'onrrol Spike(LCS) <br /> TFU ITTED, <br /> JonaNran Huo V Le, Laboralory Director <br /> 11'.1-LmtronnrerrtalProlc.clrorr tgencj -- <br /> S t!%ndurcl tlethod for Lxamrrrolror645t,Ep QAv'M Yid, Page 1 of! <br /> St suite A Stockton, CA 95204 Tel (2p9] 462-b892 FAY MWnQ0_�n�� <br />