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CERTIFICATE OF ANALYSIS <br /> 0A,zna1yt1ca1 Laboratory <br /> Werlrresrlay,Septeutber 04, 2002 <br /> TO William Little <br /> Advanced GeoEnvlronmental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Aromatic Compound In Gasoline by GC/MS <br /> Sample Information <br /> Sample ID 16638-01 Sample Type. Giab <br /> Sample Description MW-1 083002 Project Name COS-Fire Station#2 <br /> Date/Tzine Sampled 8/30/2002 2 06 00 PM Sample Matrix Ground Water <br /> . - <br /> ANAL YTICALRESULT _ w_ �_ -xQAIQC REPORT �� <br /> Date LCS Spike MS Spike I <br /> Test Parameter Method_ DLR Unit Result 'Analyzed Blank Cone LCS% Cone MS% MSD RSD <br /> Benzene EPA 82608 0 5 ug1L 7 80 30 Aug-02 ND 8 102 9% 8 101 3%° 102 59/. 0 3% <br /> Toluene _ __EPA 8260B 0 5 ug/L-- ND 30 Aug-02 _N€] 8 107 5% 8 Y 102 5% 305 i}% ----06% a <br /> Ethylbenzene - EPA 8_2_60B _..__0 5 ug1L_ M ND_ 30-Aug-02 ND 8 1029% 8 1025%_ 1000% 0 6%— <br /> m,p-Xylene _---- - �— — EPA 8260B �� 0 5 uglL - ND 30-Aug-02 _ND M~16 1053% 16 1063% 1031% 0 7% <br /> o-Xylene EPA 82606 _ 05 ug1L _ND 30-Aug-02 ND_ 8 1043% 8 1025% 1063% 0 9%_ � <br /> 1,2-Dichoroethane(DCA) EPA 82606 0 5 ug1L ND M 30-Aug-02 ND _8 _ 1008% 8 1003% 1000% 01% 1 <br /> [Methyl t-Butyl Ether(IMEBE) mm EPA 82_606 65 ugI _ 1 6 r 30-Aug-02 ND _ 8 106 3% 8 102 5% 105 0% _ 0 6% <br /> __ - W _ _ __ , . - . _ x <br /> Dusopropyi ether(DIPS) EPA 8260E 0 5 uglL ND 30-Aug-02 ND 18 1000% 18 mm 944% 1000% 14% _1 <br /> Ethyl-t-butyl ether(ETRE)� � EPA 82608 05 uglL _ -ND 30-Aug-02 ND 18 100-2% 18 105 6%° 111 1% 1 3%� <br /> Tert-amyl methyl ether(TAME) � EPA 8260B_ 0 5 uglL- ND 30-Aug-0_2 ND_ 18 943% 18 94_4% 100_0%° � 14% <br /> t-Butanol(TBA] _ EPA 82_608_ 50 ug1L ND 30-Aug-02 �ND 100 920% 100 920% 4 980% 16% b <br /> Ethylene Dibromrde(EDB) EPA 8260E 0 5 ug1L ND_ 30-Aug-02 ND _ �8�_ 960% 8 988% 963% 06% E <br /> TPH-Gas EPA 8015MILUFT 50 uglL 60 t 30-Aug-02 ND 500 1080% 500- 1100% 1040% 14% <br /> TPH-Diesel EPA 8015MILUFT 100 ug/L _ _ND_ 30-Aug_-02 ND 5000 96 0% 5000 98 0% 102 0°1° 1 0%° <br /> mg/1 =nnlligraau per Liter=ppm M-represent relative pr i rcat clrffu int{RPD)benveut duphrates spike of sampler w <br /> or Duplicate of Sample <br /> rig/1_=nrrcrograms per Liter=ppb <br /> RES E T ULL 111 ED, MS/MSD-measur e of the Pei curt r eurvu y e�cvenc ter ii chin the man i i <br /> C=Composue G=Grab <br /> LCS measure of the percent iec over i of Nu Labuiatoi t (onti of Spike{I CS) <br /> DLR-Detection Ltnut for ncc Aupow of Rcpoiting Ftceplional sample <br /> Jan tlia i Han V Le, Laboi atory Director inatrrces or urteifei en eces mat itsulr to higher e1mcoon lrnWs <br /> I P I I rirrraruirental Protection Agency i t ar rrrl 1h1 or! r ht n nallon E s cite�er ,(8th f Page 1 of I <br /> a� Clevelan8 § Ulie A I;toc�cfon, vtffi I @I 1(109) 462-0892 Fax (209) 462-7936 <br /> I <br />