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Suite 8 <br /> Sequoia 819Sarcram nto,UCA 95834 <br /> (916)9z1-9600 <br /> FAX 00Analytical www sequo[alabs corn <br /> Stratus Environmental Project ARCO 548, Stockton, CA Sampled 9/28/00 <br /> 3330 Cameron Park Drive,Ste 550 Project Number N/A Received 9/29/00 <br /> Cameron Park,CA 95682 Project Manager Jay Johnson Reported 10/16/00 <br /> " i �^ 'c'''r�'i � ''" --- - --M "•"'L *=----•-.._......vim._r- Total4Par eable I `dracarbons G6-C12 BTEX and 1VITBE b`D_ - "� �' = <br /> Control 7"t <br /> sx <br /> oar�6£'• �r zns�.„".,��� ^!a';,"r_ L awe =�mP...,'�^ },' ,�+ tbT"-'•3;; �-. :�,_y �"'s�'s s"-- *'� ^- � �'�' �` � ��o`r*`�,,,, <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> ��3te Analyzed Level Result Result Units Recov Limits % Lima % Notes* <br /> Batch 0100117 Date Prepared„ 10/11/00 Extraction Method EPA 5030B Me0 <br /> Blank 0100117-BLKI <br /> Purgeable Hydrocarbons 10/11/00 ND ug/I 500 <br /> Benzene ND " 0 500 <br /> Toluene " ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 250 <br /> Surrogate a,a,a-Tri luorotoluene 100 849 600-140 849 <br /> LCS 0100117-BSI <br /> Benzene 10/11/00 100 974 ug/l 700-130 974 <br /> Toiuene 100 104 '70 0-130 104 <br /> ]benzene too 9 97 700-130 997 <br /> nes(total) 300 285 700-130 950 <br /> Methyl tert-butyl ether 100 102 700-130 102 _ <br /> Surrogate a,a,a-Trifluorotoluene 100 909 600-140 909 <br /> Matrix Spike 0100117-MSI 5010025-03 <br /> Benzene 10/11/00 100 ND 931 ug/I 600-140 931 <br /> Toluene 100 ND 9 95 „ 600-140 995 <br /> Ethylbenzene 100 ND 9 68 600-140 968 <br /> Xylenes(total) 300 ND 275 600-140 917 <br /> Methyl tert-butyl ether 100 ND 104 600-140 104 <br /> Surrogate a,a,a-Trifluorotoluene 10 0 8 08 60 0440 808 <br /> Matrix Spike Dun 0100117-MSDI 5010025-03 <br /> Benzene 10/11/00 too ND 9 29 ug/I 600-140 929 250 0 215 <br /> Toluene too ND 921 600-140 921 250 7 72 <br /> Ethylbenzene 100 ND 958 600-140 958 25 0 104 <br /> Xylenes(total) 300 ND 268 600-140 $93 250 2 65 <br /> Methyl tert-butyl ether 100 ND 10 4 600-140 104 250 0 <br /> Surrogate a,a,a-Trlfluorotoluene 100 8 71 600-140 871 <br /> Batch 0100124 Date Prepared„ 10/12/00 Extraction Method EPA 5030B(MeOH) <br /> Blank 0100124-BLK1 <br /> Purgeable Hydrocarbons 10/12/00 ND ug/l 50 0 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> �es(total) ND " 0 500 <br /> 1 tert-butyl ether ND 250 <br /> Sequoia Analytical-Sacramento *Refer to end ofreportfor text ofnotes and definitions <br /> Page 6 of 10 <br />