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fY2K <br /> rF I]0 JN J <br /> CER TIFICA TE OF ANA L YSIS <br /> Analytical Laboratory Friday,January 11, 1000 <br /> TO: William Little { <br /> Advanced GeoEnvironmental, <br /> 4005 N. Wilson Way <br /> Stockton, Ca. 95205 <br /> Sample Inf mnalimi <br /> Sample 1D: PE6975-04 Sample Type: Grab <br /> Sample Description: Monitoring Well ft 4 Project Name: MBP/Manteca <br /> Date/Tinre Sampled: 01/19/2000 9:50:00 AM Sample Matrix: Ground Water <br /> I ANAL YTICAL RESULT � QA/QC REPORT <br /> I # Date LCS Spike MS Spike <br /> (Test Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Conc. MS% MSD RSD <br /> TPH-Gasoline EPA 8015M/DHS 50 uglL ND 21-Jan-99 ND -- 500 - 104.0% 500 96.0% 98.0% 0.5% <br /> TPH-Diesel EPA 8015M/DHS 0.5.uy mg1L NO 21-Jan-99 NO 50 100.0%� 50 110.0% 114.0% 0.9% <br /> Methyl t-Butyl Ether(MkBE) EPA8260 0.5 ug1L NO21-Jan-99- ND 20 103.1% 20 107.3% 103.9% 0.8% <br /> Benzene EPA 8260 0.5 ug/L NO 21-Jan-99 ND 20 100.6% 20 103.8% 104.7% 0.2% <br /> To EPA 8260 0.5 uglL ND 21-Jan-99 _ND20 - 103.9% 20 T103.9% 105.3% 0.3% <br /> Ethylbenzene EPA 8260 0.5 ug1L NO 21-Jan-99- ~ND 20 100.6% 20 102.9% 103.1% 0.0% <br /> Xylene(Total) EPA 8260 0.5 ug/L NO ___....__..._.._.___..._ 21-Jan-99 NO 40 99.7% 40 99.9% 98.8% 0.3% <br /> rrrs;L =rrrrllrgrrnns per Luer=ppnr I11,I1-Octecllr»7 Lrmrt for tl)('19rr7)0W r,f ReporwrK. RSD-represent relative pertwil different(RPI))helireen duplicates'spike of•samples <br /> rig 1. =mlcrogroms per Liter=pph Liveptional sample nwlric•es nr nrlerfelvneces nun_ result rn of-Diplicate olSarnple <br /> higher detection Inuits ;llS;!ISD-measure of the percerrl recorerr e fJ`rcierteres witirin the matrix <br /> t' - Composite G =Grah <br /> 1,C-S-measure of the;?ercew rccmwry ref the Laboratory C'o+urnl Sl)tkt•(WS) <br /> RESP T ULL TED, <br /> Jonathan Hao V. Le, Lahoralory Director <br /> i <br /> IiP:I-F.rrrAonm rntuctran:Igerrci rVerlrncL . e 1 of 1 <br /> 5'.!I-SYuurlrrrd,l .�rtr I;:rnrrrinutirtn of Water If as/ciraler Ib711 I'd <br /> g05 *0 veJW St.aWe p11WckJ1WA6W4 @ft.: ( 462002 F W20102-7� <br />