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}^ e�t101� 680 Clics'aeal.e Drive `tcdwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404N lY iget lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> SECQR)nteinattonal Project Arco 2093 Sampled 6125198 <br /> 9912 Business Pail. Drni- Ste 100 Project Number 76600-603-02 Received 6/25/98 <br /> Sacramento, CA 95827 Piolect Manager Rusty Benkosky Reported 719198 <br /> Total Purgc.able H)di oc,a1 bons(C6-C12),BTEX and A'ITBE by DHS LUFT/Quality Control <br /> Sequoia Analytical -Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analvzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch. 8070107 Pate I'i t_ni-cd 718198 Extraction Method EEA 503013.(P-IT) <br /> 131a[Ih $070107-BL1C1 <br /> Purgeable Hydracarbons 7/8/98 ND ug/l Soo <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 S00 <br /> Xylenes(total) ND 0 500 <br /> Methyl tcri-butyl ether ND Soo <br /> Surrogate aaa-Titfluorotoluene 100 9 71 600-140 971 <br /> LCS 8070]07-BS 1 <br /> Benzene 7/8/98 10 0 960 ug/l 700-130 960 <br /> Toluene 10 0 9 19 700-130 91 9 <br /> Ethylbenzene 100 9 15 700-130 91 5 <br />�,t <br /> enes(total} 30 0 27 3 �6O <br /> �49 <br /> 91 0hyl tent-butyl ether 10 0 9 92 99 2rogate aaa-Tttfluorotoluene 10 0- 9 SO 5 0 <br /> Matrix 1k 8070107-MSI 5806397-0I <br /> Benzene 718198 100 _ ND 9 81 ug/1 600-140 981 <br /> Toluene 10(L ND 942 600-140 942 <br /> Ethylbenzene 100 ND 945 600-140 945 <br /> Xylenes(total) 300 ND 287 600-140 957 <br /> Methyl tert-butyl ether 100 ND 126 600-140 126 <br /> Surrogate a a a-Triuorotoluene 100 109 600-140 109 <br /> Matrix Spike Duo 8070107-MS131_ 5806397-01 <br /> Benzene 718198 100 ND 9 21 ug/1 600-140 921 25 0 631 <br /> Toluene 100 ND 893 600-140 893 250 534 <br /> Ethylbenzene 100 ND 9 19 600-140 919 25 0 279 <br /> Xylenes(total) 300 ND 269 600-140 897 250 647 <br /> Methyl ter-butyl ether 100 ND 743 600-140 743 250 51 6 4 <br /> Surrogate a a a-Tnfluorotoluene 100 930 600-140 930 <br /> Batcb 80701.09 Da�J!reoared 718198 Extraction Method EPA 5030E(PIT-) <br /> Blank 8070109-BLKI <br /> Purgeable Hydrocarbons 718198 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene IND 0 500 <br /> Xylenes(total) ND 0 500 <br /> ethyl reit-butyl ether ND 500 <br /> Sequoia Analytical- Sacramento *Refer to end of report for text of motes and definitions <br /> Page 4 of 6 <br /> lnda C Sch eider,Laboratory Director <br />