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CS) <br /> W <br /> CER TIFICA TE OF ANALYSIS <br /> Analytical Laboratory Tteesde r•,March 12, 2002 i <br /> CD <br /> TO: William Little m <br /> W <br /> Advanced GeoEnvfronmental <br /> 837 Shaw Road <br /> Stockton CA 95215 LO <br /> Oxygenated Compound by GCMS <br /> Sample If fUri'rnation m <br /> LO <br /> A <br /> Sample ID: 14494-02A Sample Type. Grab <br /> Sample Description: Tank#1 South End Project Name. 4040 E.Main ST. <br /> DatelTime Sampled. 316/2002.4:35:00 PM Sample Matrix: Soil M <br /> ANALYTICAL RESULT QAIQC REPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result s Analyzed Blank Cone. LCS% Cone, MS% MSD RSD <br /> Methyl t-Butyl Ether(MtBE) EPA 82608 5 ugtkg ND 08-Mar-02 ND 12.8 112.5% 12.8 117.2% 117,2% 0.0% <br /> Dl-isopropyl ether(DIPE) EPA 82608 5 ugAg ND 08-Mar-02 ND 35 98.5% 35 82-9% 82.9% 0.0% <br /> Eft W14-butyl ether(ETRE) EPA 82608 5 UgAg ND 08-Mar-02 ND 35 98.3% 35 108.6% 1 D8.6% 0-0% <br /> _ <br /> Tort-amyl methyl etfier(TAME) EPA 82608 5 ugJkg ND 08 Mar-02 ND 35 95.7% 35 100.2% 103.3°b 0.8°� rM <br /> t-Butanol(TBA) EPA 82608 100 ugikg ND 08-Mar-02 ND 100 110.0% 100 88.056 86.0% 0.6% Ln <br /> - <br /> 1,2-Dlchloroethane-d4{Surrogate} %Recovery 109`Yo <br /> 4 BfB-(Surrogate} %Recovery t083'o z <br /> mglL=rniiligrtnns par Liter•=ppnr R.SD-represent rriatist percemt d#ci-ei t(RPD)brtsrrsen duplicates spike of samples <br /> ugiL=rnirrogr'nrns per Liter=ppb <br /> or Nplicate of Sample <br /> REP FULL M ED, tL95'&fSAnreos�rre of the perrexr rYcovr+y rciencics xi[bin Elie nrrtlrtc <br /> C=Conyiosite G=Get& <br /> LCS'-+nenstrrr of the percent recvran�of the Laboruto�l•Control Spike(LCV) <br /> joi Rth n.Hao V.Le,Laboratory Director DLR-Detection Limit for ow Purpose ol•Reporting. 6tceptionrrl sample <br /> riratrires or inteiferenevas may result in higl+er detu•tion limits <br /> -0 <br /> D <br /> M <br /> CD <br /> CX) <br /> t'P�t-1 incironnrcnhtl Protection:tgcrrc�Aletirari. SAS'-5trtnrlo+ri Method for Ertrrxir+rttion of 1f`ater Jf'tutesr-rrlpr 1 4rlc Ed. Page 1 o/'1 <br /> S41r, F C'Ipvalar!r1 St. Suite A Stockton- CA 95204 Tel.: (2091462-0892 Fax: (209) 462-7935 <br />