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L <br /> YK E <br /> CER TIFICA TE OF A NAL YSIS <br /> TO: William Little lVednesday,September 29, 1999 <br /> Advanced GeolEnviron mental, <br /> 4005 N. Wilson Way <br /> Stockton, CA. 95205 <br /> Sample Information <br /> Sample ID: PE5954-03 Sample Type: Grab <br /> Sample Description: POST-OX Pi-oiect Name: Elkhorn S VE <br /> Date/Tithe Sampled: 9/15/99 11:15:00 AM Sample Matrix: Air <br /> ANALYTICAL RESULT QA1Q_CREP0RT <br /> Date L CS Sp ike 31S Spike <br /> Test Parameter Method <br /> DLR Unit Result KAnalyzed Blank <br /> Colic. LCS% Colic. MS% MSD RSD% <br /> TPH-Gasoline EPA 8015M/DHS 5D ug/L 3600 <br /> 20-Sep-99 ND 500 96.0% 500 104.0% '110.0% 1.4% <br /> Methyl t-Butyl Ether(MLBE) EPA8260 0.5 ug/L ND 20-Sep-99 ND 20 90.0% 20 140.0% <br /> 125.0% <br /> % <br /> Diisopropyl ether(DIPE) EPA8260 0.5 ug/L ND 20-Sep-99 ND 20 90.0% 20 105.0% 95. 2­5" <br /> --------------- <br /> Ethyl-t-butyl ether(ETRE) EPA8260 0.5 ug/L ND <br /> 20-Sep-99 ND 20 92.5% 20 110.0% 125.0% 3.2% <br /> Tert-arnyl methyl ether(TAME) EPA8260 0.5 ug/L ND 20-Sep-99 ND <br /> 20 100.0% 20 95.0% 105.0% 2.5% <br /> t-Butanol (TBA) EPA8260 0.5 ug/L KID 20-Sep-99 ND ry 2090.0%: .:: <br /> 0 <br /> 90.0% 20 75.0% 70.0% 1 <br /> Benzene EPA 8260 05 ug/L 9220-Sep-99 ND 20 100.0% 20 125.0% 135.09.­­___ <br /> Toluene EPA 8260 0.5 ug/L 440 20-Sep-99 ND 20 92.5% 20 150.0% 175.0% 3.8% <br /> Ethylbenzene EPA 8260 0.5 ug[L 115 <br /> 20-Sep-99 ND 20 95.0% 20 135.0% 140.0% 0.9% <br /> Xylene (Total) EPA 8260 0.5 ug/L 1060 <br /> 20-Sep-913 ND 19 105.3% 20 150.0% 160.0% 1,60/. <br /> niglL milligrams per Liter=ppm DLR-Detection Limil for 1he Purpose of Reparling. RSD-represent relative percei7l different(RPD)between duplicates spike of samples <br /> uglL =micrograms per Liter=ppb EXCCP607101 SOMPIC Mall-lCeS 01-inter fererreces way result in Or Duplicate 0)rsample <br /> C- composile G=Grab higher deiccrion lifnils AfS1A,1SD-mcasw-e of the percew)-ccoveg,efficielicies uqjjjjjj the walrix <br /> rv�"YTF�L L Y M1 TED, LCS-HIMS111-C Q011C PCf-CC171 ITCOI�Cl)�of the Laborafoi7,Confrol Spike(LCS) <br /> R T�_,S�P_E__,, <br /> Jonat ian Hao V Le, Laboratory Director- <br /> ............. <br /> LPA -,11.1romnewal Protection Agency JIlerhod Page I of I <br /> F_'X(7ll;il7G1i0l? ICL K <br /> ANY"'31. Suite A Stockton, CA 95204 Tef.-. (209) 462-0892 Fax: (209) 462-7935 <br />