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CERTIFICATE O.FANALYSIS <br /> Ana/yt�ca/ Labaratary TttNstrtty,March 12, zonz <br /> TO: William Little <br /> Advanced GeoEnviron mental <br /> 1 <br /> 837 Slaw Road <br /> Stockton CA 95215 <br /> Oxygenated Compound by GCMSr <br /> Sample Information <br /> Sample ID: 14494-05A Sample Type: Grab <br /> iSample Description: Tank#3 North End Project Name: 4040 E.Main ST. <br /> Date/time Sampled: 3/6/2002 3:20:00 PM Sample Matrix: Soil <br /> 4'-[p!a!R.nfra�iw.e+evamas'�p6cuYm'Flwti'+nm.��i�"c�:Y+rn-:�-`•-i '�M•dJT:n'�,SAY'%'=Y.'fW�� .W:k�xertlYM':Y gni•W<W�s».�aN.�iw�'TS>kY»E:P.:.:Wv'-S+umsF+1V.-nAAa..8.e,6LYAlroa-IAMP1w.�w _ .sYdtai�uu2.a.rara.ason-4k'e6b[rl wewtil:e:i_a.4l...tx <br /> ANALYTICAL.RESUL.T QA/QC REPORT�� <br /> Date LCS Spike MS Spike <br /> ,Test Parameter Method DLR Unit Result "Analyzed Blank Conc. LCS% Cone. MS% MSD RSD <br /> e Methyl t-Butyl Ether(MtBE) EPA 8260B 5 ug/kg ND 08-Mar-02 ND 12.8 112.5% 12.8 117.2% 117.2% 0.0% <br /> Di-isopropyl ether(DIPE) EPA 82606 5 ug/kg ND 08-Mar-02 ND 35.,. 98.5% 35 82.9% 82.9% 0.0% <br /> r ,. .. .._ .......:.,..:., .....-....�,�... �, �.. ..:._ .,.:�. .-..,. _...: ..,.. ...._.: . . ..-....., .......... .. .. ......, _ _ <br /> Ethyl-t-butyl ether(ETBE) EPA 8260B 5 ug/kg ND. . OS Mar 02 ND 35 98.3% 3 5 108.6% 108.6% 0.0% <br /> s Tert_amyf methyl ether(TAME) EPA 82608 5 ug/kg ND 08-Mar-02 ND 35 95.7% 35 100.2%° 103.3% 0,81/0 <br /> t-Butanol(TBA) EPA 8260E 100 ug/kg ND r08-Mar-02 ND 100 - 110.0% 100 88.0%° 86.0% 0.6% <br /> 1,2-Dichloroethane-d4(Surrogate) %Recovery 110% <br /> 4-BFB{Surrogate) %Recovery 106% <br /> nig/L —nrilltgrams per Liter—ppm RSD-reprevew relative percerrl rlrfferew(RPU)!xlireau duplicates spike of samples <br /> ug L=urierogrgrns pet-Lifer=ppb <br /> Or Duplirntn.of Snniph <br /> ESE TFUL B1l1 TTED, C Composite <br /> of'Ifre percent reroveg effiriencies within the matriv <br /> = G= .. ' <br /> 1_CS-measure ofehe perrew recovary of the Lrihorator7-Con Spike'•(LCS) <br /> DLR-Detection Lined for the Purpose gf'Reporting. Fveeptional sample <br /> J 11at an Hao 6: Le, Laboratory Director rnairices or inlerfereneces may result in higher deieclion lindis <br /> rvironntenlalf'rotr:r.tivn.•fgencyhfethod. SAI-Standard h9ethod/ea'E-rapinntion of Water_wosre•ssatc•r18rAEr1. Page loff <br /> 545 E. Cleveland St, Shite A Stockton, CA 95204 Tel.: (209) 462-0892 Fax: (209) 462-7935 <br />