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' 404 N Wiget Lane <br /> ID Sequoia Walnut Creels CA 94598 <br />' (925)988-9603 <br /> Analytical FAX(925)9889673 <br /> FAX <br /> sequalalabs conn <br />' Roy F Weston-Walnut Creek Project San Joaquin HSA <br /> 1575 Treat Blvd Ste 212 Project Number - Reported <br /> Walnut Creel.CA 94596 Project Manager Jessica Levine 21-Feb-02 18 42 <br />' Total Purgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFT <br /> Sequoia Analytical - Walnut Creek <br />' Reporting <br /> [Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW4(W202081-05)Water Sampled 06-Feb-02 10 30 Received 06-Feb-02 18 20 <br />' Purgeable Hydrocarbons(C6-C12) ND 50 ug/I 1 2BO7009 07-Feb-02 07-Feb-02 DHS LUFT <br /> Benzene ND 050 <br /> Toluene ND 050 ^ » ^ <br /> Ethylbenzene ND 050 ^ <br /> IXylenes(total) ------- ND 050 �_- -- -----__.—._- ----- __- -- --�—" <br /> Surrogate a a a-1'rifluorotoluene 110% 70-130 ^ <br /> MW-3A (W202081-06)Water Sampled 06-Feb-02 11-30 Received 06-Feb-02 18 20 <br /> Purgeable Hydrocarbons(C6-C12) 120 50 ug/l I 2807009 07-Feb-02 07-Feb-02 DHS LUFT HC-12 <br /> Benzene ND 050 ^ ~ ^ ^ » ^ <br /> Toluene ND 0 50 <br />' Ethylbenzene ND 050 ^ ^ ~ ^ <br /> Xylenes(total) ND 050 ^ <br /> Surrogate a a a-Trifluorotoluene 236% 70-130 •' x_04 <br /> AMIN-2(W202081-07)Water Sampled 06-Feb-02 14 00 Received 06-Feb-02 18 20 <br /> rgeable Hydrocarbons(C6-C12) 28000 25000 ug/I 500 2B07009 07-Feb-02 07-Feb-02 DHS LUFT <br /> Benzene 12000 250 <br /> Toluene ND 250 » ^ ^ ^ <br /> Ethylbenzene 770 250 ^ <br /> Xylenes(total) 940 250 <br /> ^ <br /> Surrogate a a a-Friflum otoluene 99% 70-130 S-04 <br /> MW-2A(W202081-08)Water Sampled 06-Feb-0216-10 Received 06-Feb-02 18 20 <br /> Purgeable Hydrocarbons(C6-C12) 1200 500 ug/l 10 2807009 07-Feb-02 07-Feb-02 DHS LUFT <br />' Benzene 25 5 0 <br /> Toluene ND 5 0 » <br /> Ethylbenzene 20 5 0 ~ » <br /> Xylenes(total) ND 5 0 " ^ <br /> Surrogate a a a-Irtfluorotohtene 109% 70-130 — <br /> Sequoia Analytical- Walnut Creek The results to this report apply to the samples analwed in accordance with the chain of <br /> custody document Ats analytical report must be reproduced in its entirety <br /> 3 of 8 <br /> i <br />