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1=11 M <br /> I1�RN tQl<Il. <br /> VhIVH CERTIFICATE OF ANALYSIS <br /> An�rlytica► Laboratory Fri(leg,Januanr 21,2000 <br /> TO: William Little <br /> Advanced GeoEnvironmental, <br /> 4005 N. Wilson Way <br /> Stockton, Ca. 95205 <br /> Sample liifirrrnaliorr <br /> Sayrrple ID: PE6937-02 Sample Type: Grab <br /> Sample Description: MW I-20 Project Name: MBP-Manteca <br /> Dale/Time Sampled: 01/13/2000 9:15:00 AM Sample Mrrtriv: Solid <br /> ANAL YTICAL RESULT QA/QC REPORT <br /> � - --- -- - ---- - - j Date -. _ LCS Spiker� MS Spike <br /> iTest Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Conc. MS% MSD RSD <br /> TPH_Gasoline— - EPA 8015M/DHS 1 mg/Kg ND 20-Jan-00 ND 0.5 H� 97.6% _ 0.5 96.0% 98.0% 0.5% <br /> TPH-Diesel EPA 8015M1DHS 10 mg/Kg ND - J- 20-Jan-00 ND 50 96.0% 50 98.0% 104.0% 1.5% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 5 ug/Kg 2580 20-Jan-00 ND 20 100.0% 20 101.5% 98.3% 0.8% <br /> Benzene EPA 8260 5 ug/Kg ND 20-Jan-00 ND 20 - - -99.1% 20 - 102.4% 96.8% 1.4% <br /> !Toluene ----- EPA 8260 5 ug/Kg ND 20-Jan-00 - ND - -�20 � 100.7% - 20 _ 102.4% 96.4% 1.5% <br /> �!Ethyl Benzene EPA 8260 5 ug/Kg ND 20-Jan-00 ND 20 103.0% 20 101.1% 95.2% i 5% <br /> Xylene,Total EPA 8260 5 ugiKg ND 20-Jan-00 ND 40 102,0% 40 97.2% 97.9% 0.2% <br /> nr•s;L —rni!ligr•anrs per Lifer-=ppro L)U?-Oelecrion,.lard frrr rhe P,rrpose of Reporting 161D-represela relalire percew different(RPD)hehreen duplicales spike of samples <br /> Fig!, =or,cro rurrrsPei,!.iter=pph liscepliorrrrl.sunrple orrr(rrce.s or irrlerferrnece.s rrrar rc.sull rrr or IMplicule gf.5atrrple <br /> Composite Grub <br /> higher derecrrorr linril.s i1LS/,1LSO-ineasure of the perceru recover),c ficierrcies within the nralri-r <br /> � C; - <br /> L(•S-rnrc+,�ure of the percent recovery of the Lrrhoralor3'C onrrol Spike(LC'S) <br /> RC ' TFU I TTED, <br /> Joirathan Hew V Le, Laborrrlorp Director <br /> I <br /> (:!';f-Lirrironurenrn!Prnrectinn:lgencr 1letlrud Page 1 of I <br /> S,i!-,srrr,rrlarrl,�lerl,ar�f�, 1:�rrnli„rt,,r�rr5f� rr rl �r , <� � ,�t .t Suite A Stockton, CA 95201 Tel.: (209) 462-0892 Fax: (209) X162-7935 <br />