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r <br /> '. - .- ,, � ,.. .r"_,. .. � _7,N�5 :ya�.Lg-. '-- . �x'a-'?'S+•�*'� -v^w, -. :r w•F.�- '0'; - .-� _.. -w �'�•i�ya"x�,:7v:- +.'�.,wyp-�'. <br /> - � V .- •_ .�_..-Sequoia_ - 680 Cheupakc Drive + Rcdwood City,CA < .(415) 364.9600. , I FAX(415)364-9233 <br /> 404 N.Wigct i2nc Walnut Cttek�CA 945 (510) 988.9600 FAX{510}988-9673 <br /> e„� �}1Cd] 819 Sinker Avenue.Suite 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921.0100 <br /> 1?ll ` 1 { <br /> IiI <br /> Advanced GeoEnvironrnental Project: City of Stockton Sampled: 7117198 <br /> 4005 North Wilson Way Project Number: N/A �J Received: 7128198 <br /> Stockton,CA 95205 Pro'ect Mama er: Bill Little i! R ned: 8/11198 <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX byjDHS LUFF/Quality Control <br /> Sequoia Analytical-Sacramento <br /> 11. <br /> Date Spike Sample QC 1" Reporting Limit Recov. RPD RPD <br /> JAnalyte Analyzed Level Result Result 11 Units' Recov.Limits % Limit % Notes' <br /> T. <br /> Batch: 8080053 <br /> 1 12nk 8080053-BL,KI It <br /> L Purgeable Hydrocarbons 814198 ND ;� ug/l 50.0 <br /> Benzene " ND I1 0.500 <br /> 'toluene ND 0.500 <br /> Ethylbenzene " ND 0.500 <br /> Xylenes(total) ND 0.500 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 8.77 60.0-140 87.7 <br /> lSS 8080053-BSI <br /> Benzene 814198 10.0 9.79 i ug/1 70.0-130 97.9 <br /> Toluene " 10.0 9.25 70.0-130 92.5 <br /> Ethylbenzene 10.0 9.11 170.0-130 91.1 <br /> Xylenes(total) " " " -" 30.0 27.2 70.0-130 90.7 <br /> Cgurrog"'e` <br /> a,a,a-Tr uorotoluene 10.0 8.82 �i 60.0-140 88.2 <br /> L at - Smoke i{h <br /> $080053-M51 fiR0732S-09 <br /> Benzene 814/98 10.0 2.80 12.4 �1 ug/l 60.0-140 96.0 <br /> Toluene 10.0 ND 9.23 60.0-140 92.3 <br /> Ethylbenzene 30.0 ND 9,38 60.0-140 93.8 <br /> Xylenes(total) " 30.0 ND 27.9 } 60.0-140 93.0 <br /> Surrogate: a,a,a-Triuorotoluene 10.0 9.00 �i " 60.0-140 90.0 <br /> M21HY Spike Dua 8080053-MSD1 S807325-04 I <br /> Benzene 814198 10.0 2.80 11.8 11 ug/1 60.0-140 90.0 25.0 6.45 <br /> Toluene 30.0 ND 8.73 60.0-140 87.3 25.0 5.57 <br /> Ethylbenzene " 10.0 ND 8.82 I 60.0-140 88.2 25.0 6.15 <br /> Xylenes(total) 30.0 ND 26.3 ! 60.0-140 87.7 25.0 5.87 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 7.71 i. 60.0-140 77.1 <br /> '1 <br /> a <br /> IP <br /> iI <br /> quoia Analytical-Sacramento `Refer to end of report for!ext of notes and definitions. <br /> Ronald W Bobel,Client Services Rep sentative �; Page 3 of 4 <br />