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o <br /> CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> ffednesdtty,November 10, 1999 <br /> TO. Jay Jahangiri/Mike Lukstc <br /> ' Port of Stockton <br /> ` 2201 W Washington St <br /> ,f <br /> Stockton Ca 95205 <br /> r <br /> Sample Information <br /> Sample ID PE6255-07 Sample Type Grab <br />} Sample Description MW3-1 Project Name Monitoring Well <br /> h'd Date/Time Sampled 10/22/99 3 40 00 PM Sample Matrix. Ground Water <br /> ANALYTICAL RESULT QA/QC REPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Metliod DLR Unit Result Analyzed Blank Conc. LCS% Conc MS% MSD RSD <br /> TPH-Gasoline EPA 8015M/DHS 50 ug/L 2750 25-Oct-99 ND 1000 1080% 1000 1080% 1058% 05% <br />`t Methyl t-Butyl Ether(MtBE) EPA8260 05 ug/L ND 25-Oct-99 ND 40 875% 40 875% 1050% 45% <br /> I-r Benzene EPA 8260 05 ug/L 270 �25-Oc1-99 ND 40 950% 40 1375% 1400% 05% <br /> G- <br /> - Toluene EPA 8260 05 uglL 12025-Oct 99 ND 40 950% 40 1200% 1300% 20% <br /> k„ Ethylbenzene EPA 8260 05 ug1L 49 25-Oct-99 ND 40 875% 40 1025% 1200% 39% <br /> { Xylene(Total) EPA 8260 0 5 ug1L 390 25-Oct-99 ND 80 938% 80 1438% 1563% 21% <br /> rnglL=nuffigram per Liter=pprn DLR-Defection Lanit for the Purpose of Reporting RSD represctti telatiie perceiit dtffercirt(RPD)belii eeir diq.?licates spike ofsaurples <br /> ug/L=micrograms per Liter=ppb ECcepfional sample matrices or tnterferencccs cony restilt in or Dtiphcale of Sample <br /> C=Cornpostie G=Grab <br /> higher detection hints hlShWD-tneamre of the percent recovery efficiencies i,itlun the matrix . <br /> LCS-measure of the pertetrt recover) of the Laborator) Confrol Spike(LCS) <br /> r RES TFU ITTED, <br /> Jonathan Hao V Le, Laboratory Director <br /> Y� <br /> 1 <br /> t'r <br /> ry <br />�y <br /> CPA-Environmeival Protection Agency Method Page 1 of I <br /> SAI-Standard ifellrodfor rxamuitatiot54�Per 'C J6Vt'Iaffd pit Suite A Stockton, CA 95204 Tel (209) 462-0892 Fax (209) 462-7935 <br /> r � <br />