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Sequoia �Che5apeaf<e Drive Redwood City.C -.,3 (650; 364-9000 FAX r{150,3civ-9233 <br /> - J4 N. Wlget Lane walnut Creek.Cr. ,98 (925)988-9000 FAX(9Z5)938-9073 <br /> 8t9 Striker Avenue, Suite 8 Sacramento.CA 95834 (.9161 92t-good FAX(910)921-0100 <br /> Analytical <br /> McDowell Blvd. North, Ste. D Petaluma CA 94954 (7071 792-1865 FAX (707} 792-0342 <br /> 1 551 Industrial Road San Carlos, CA 94070-4 1 1 1 (650;232-9600 FAX('050) 232-9012 <br /> Cambria Environmental Project. Equilon, 131 i E. Charter Way, Stockton.CA Sampled: .1/29 99 <br /> 2M Perkins Street Project Number: N,A Received 4 29 99 <br /> Sonoma, CA 95470 Project Masa{zero Aubrey Cool Reported: 5.6;99 <br /> Total Purgeable Hydrocarbons(C6-C12),RTEX and MTBE by DHS LUFT1Quality Control <br /> Sequoia Analytical -Sacramento <br /> Date Spire Sample QC Reporting Limit Recoti. RPD RPD <br /> Analyte Analvzed Level Result Result Units Recov Limits Limit `atcs* <br /> Blank (contioued) 4 ; -U_Lhd <br /> Surro,we. a,a,a-Trifluorotoluene 5/5/99 (}_00 0.190 ni,,kg 60(1-11(1 93.0 <br /> LC-S905OQ50-Bsl <br /> Benzene 5%5%99 0.200 0 193 m k '0.0-lit} 96 5 <br /> "Toluene 0 Zoo 0.210 700-130 105 <br /> EthvH)trnzenc 0.200 0,211 70.0-130 Ms <br /> Fylenes(total) 0.600 4_;70 " 7o.0-1 30 95.0 <br /> Methyl tent-butvi cthor 4.200 0.170 70.0-13t) SS.O <br /> S,<n-ogate_ u,a,a Trftluorutulu�ne 0_O0 0-11'4 60.0-1,10 92 <br /> tris tic �1 ;000-1151 <br /> S905009-08 <br /> Benzene 5-5'99 0.201) ND 0 181 mg kLz 60.0-140 90.5 <br /> Toluene 0.200 ND 0.180 60 0-140 93.0 <br /> Fthylbcnzenc 0.200 ND 0.196 Ot)_r)_140 98.0 <br /> Xylenes(total) " 0.600 ND 0.524 60.0-140 87.3 <br /> :Methyl tent-butyl ether 0.200 ND 0.181 60.0-140 90.5 <br /> Srarro("wc. a,u.a Trif?uorofoluenE' 0 200 0.1'9 60_0-I 10 89 <br /> 9_ � ' `t_ lEI S905009-08 <br /> Bcrzcne 5,5,99 0} 200 N'D O.ISO m, k 60.0-140 90.0 0 0.551 <br /> Tofuenc 0.200 ND 0.191 60.0-140 95.5 _'S.O 2.65 <br /> Fthvibenzerte 0.200 ND 0.193 60,0-140 96.5 _ti, 0 1.54 <br /> Xvtenes(total) 0.600 ND 0.52? 00 0-140 87.2 25_e) 0.115 <br /> Methyl Cert-butyl ether 0.200 ND 0.178 60.0-140 89.0 25.0 1.67 <br /> S'ur'rogate: qu.a-Trifluorolulu�'rtE' 0 200 0-183 60.0-140 91.5 --- <br /> Sequoia Analvtical -Sacramento *Ref',to end of report fur text o/notes and deyinalon.s. <br /> �:�' �Z� �C'� /_ /V71; <br /> Sandra R. Hanson,Client Ser%ices Representative Pa 0 of S <br />