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11M M = = M = M <br /> ArKr-C.L5RON 0 <br /> L� 0 <br /> NWH RO-TICKH1 CERTIFICATE OF ANALYSIS <br /> nalytical LalboPatCWY Tuesday,April 24,2001 <br /> TO- William Little <br /> Advanced Geo Envlronmental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Sample Information <br /> Sample ID. PE11268-03 Sample Type: Grab <br /> Sample Description: 040901-MW2A Project Name- Den's Auto Repair <br /> Date/Time Sampled: 04/09/20012 30 00 PM Sample Matrtx- Ground Water <br /> a � x - �a l.cY s/.=.."+--.i]w's�w tY1iN �+s s4'.9.•Yntvhrtrz^'T li,cxlS.^t'+s'n[v �.JN"'�s.s!h t � >>toc su't T .t -, wi- .L 1e' ,Hkak;M"�9'mLiv sJ.BSlCwxtvGh'CC cY '�[� � �'s3�YK+mY+au'tb c'r-n4�4.`N'=� SCn i' ^.k'�'i�s[� <br /> ANALYTICAL RESULT . QA/QCREPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Conc. MS% MSD RSD <br /> TRH-Gasoline EPA 8015MIDHS 50 ug1L 1590 13-Apr-01 ND 500 960% 500 980% 980% 00% <br /> Methyl t-Butyl Ether(MtBE) EPA 8260M 05 ug/L NO 13-Apr-01 ND 32 1027% 32 991% 1014% 06% <br /> Di-isopropyl ether(RIPE) EPA 8260M 05 ug/L 44 13-Apr-01 ND 16 1034% 16 988% 1031% 11% <br /> Ethyl-t-butyl ether(ETRE) EPA 8260M 05 uglL NO 13-Apr-01 ND 16 968% 16 967% 961% 01% <br /> Tert amyl methyl ether(TAME) EPA 8260M 05 uglL NO 13-Apr-01 ND 16 1006% 16 936% 906% 08% <br /> t-Butanol(TBA) EPA 8260M 10 ug/L NO 13-Apr-01 NO 200 970% 160 938% 1063% 31% <br /> Benzene EPA 8260M 05 uglL 145 13-Apr-01 ND 32 961% 32 988% 956% 08% <br /> Toluene EPA 8260M 05 ug/L 55 13-Apr-01 ND 32 053% 32 996% 939% 15% <br /> EthY lbenzene EPA 8260M 05 ug/L 64 13-Apr-01 ND 32 942% 32 997% 920% 20% <br /> - <br /> Xylene(Total) EPA 8260M 05 ugll- 110 13-Apr-01 ND 32 950% 32 995% -456% 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 uglL NO 13-Apr-01 ND 16 969% 16 988% 981% 02% <br /> Methanol EPA 8260 25 ug/L NO 13-Apr-01 ND 100 100 0% 100 960% 980% 05% <br /> Ethanol EPA 8260 25 ug/L NO 13-Apr-01 ND 98 1020% 100 980% 960% 05% <br /> I <br /> rng/L—nulltgi ants per Liter=ppm RSD-rept eseni relative percent different(RPD)hetween duplicates spike of samples <br /> RES CT ULL ED, C= =nirc?mpo it ams per Liter=ppb <br /> or Duplicate of Sample <br /> MS/MSD-nieasup e of the percent recovery efficiencies within the matrix <br /> C=Composite G=Grab <br /> LCS-measure of the percent recovery of the Laboratory Control Spike(LCS) <br /> DLR-Detection Linrtt for the Purpose of Reporting Exceptional sornple I <br /> Jon EV <br /> Hao V Le,Laboratory Director matrices op interfereneces may result in higher detection limits <br /> EPA-Environmental Protection Agency Method Page 1 Of 1 <br /> SM-Standaid Method fop Erannnation6hVtE tf9V6%Kd tdt Suite A Stockton, CA 95204 Tel E(209) 462-0892 Fax (209) 462-7935 <br />