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Sequoia 1551 lnductnal Road <br /> Ana]37tieaI I San Carlo CA 94070 <br /> 1650)212 96M <br /> FAX(650)232 9612 <br /> uwu sequoiaiabccorn <br /> Genler-RyanlGeoetrategtes(1} Prolect Tocco(1) <br /> 6747 Sierra Coun Suite l Prolect Number 'Tosco*5886 Stockton <br /> Dublin CA 94568 Protect Manager Deanna Harding Reported 0 <br /> 05/20/02 12 25 <br /> —�'01at>Ile Organlc 8 Oar'genated Compoundsbv ]EPA-Met-hod-8260B - Quality Control <br /> Recult Spike Source °/oREC <br /> Sequoia Anahtical - San CarlOs <br /> Reporting <br /> AnalweRPD <br /> Limit _Limtc_ _ Le,el _ m. <br /> Recult %R)C -Limns RPD LtPDmit Noiec <br /> Batch 2050009- EPA 5030B jP/7-1 <br /> _LCS(2050009-BS2)— prepared& Analyzed 05/07/02 <br /> Meth,l ten-burv]ether aq 20 ugll SD 0 <br /> 886 70 130 <br /> Surrogate 12 Dirhloroethane d4 506 <br /> Surrogate 7oluene-0 5U 1 51111 101 70140!UU 70 130 <br /> Matrix S ike(20f,0009-NISI) <br /> U 0009-A7Sl) Source L204130-04 Prepared& Analyzed 05/06/02 <br /> Meihvl ten-bunt ether <br /> 41 3 2 0 UPI 50 0 ND 82 6 60 140 <br /> Surrogate I d Dtchloroethane-d4 43 h <br /> Surrogate Toluene d8 5!1 U 876 70-130 <br /> 4i 9 50 0 958 70 130 <br /> Matrix Spike Du (20;0009-NISDI) Source L204130-04 Prepared& Analyzed 05/06/02 <br /> Mel h%I ten bun I ether 422 20 uo 50 0 ND 844 <br /> 60-140 216 25 <br /> Surrogate 12 Drchlvroerhane-d4 44 7 <br /> Suri ogate Toluene d8 490 -500 874 70 130 <br /> 500 980 iU 13U <br /> Batch 2050013- EPA 5030E JP/T <br /> Blank(2050013-BLKI) <br /> Ethanol Prepared& Analyzed 05/07/02 - <br /> ND S0D ug/f <br /> 1 2 Dibromoethane ND 20 <br /> l 2-D)chloroelhane ND 2 0 <br /> Di-Isopropyl eiher ND 2 0 <br /> Ethvl ten-butvl ether ND 20 <br /> Methv]ren-but�I ether ND 20 <br /> Ten-am,l methNi ether ND 20 <br /> Teri burl alcohol ND 100 <br /> Surrogate 12 Dtchloroethane-d4 495 <br /> Surrogate Toluene d8 SIJ 0 990 70 130 <br /> 49 R 500 996 70 130 <br /> Sequoia Analytical - San Carlos The results in rhrs report apP!y to the Samp les ana"Ted to accordance xrth the chain <br /> p <br /> cusrodt document This analytical report must be reprodured rn its entirety <br /> Page 21 of 23 <br />