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S19 Striker Avenue.Suite 8 <br /> Sequoia Sacramento.CA 95834 <br /> Analytical <br /> � � <br /> (916)921-9600 <br /> Analy}tical FAX(916' 921-0100 <br /> SECOR Intemauonal-Sacramento Project ARCO 2093,Tracy CA Sampled 12/22/99 <br /> 9912 Business Park Dr,Ste 100 Project Number NIA Recei„cd 12/23/99 <br /> Sacramento,CA 95827 Proloct Manager Rus Benkosky Reported 1/10100 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Samplc QC Reporting Limit Rocov RPD RPD <br /> JAmolytc Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0010023 Pstq Prepared- 1£3100 Ewtraetion Method EPA 5030D(MeON <br /> Blank 0010023-BLKI <br /> Purgeable Hydrocarbons 1/3100 ND ug/l Soo <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzenc ” ND 0-so0 <br /> xylenes(total) ND 0.500 <br /> Mcthyl tcrt-butyl ether ND " _ 250 <br /> Surrogate a,a a-Trjfluororoluene 100 963 '600-140 963 <br /> LCS 0010023-BSI <br /> Benzene 1/3/00 100 8 76 ugll 700-130 876 <br /> Toluene 100 8 83 700-130 883 <br /> Ethylbcnzcnc 100 837 700-130 887 <br /> 'ylenes(total) 300 267 700-130 890 <br /> AI <br /> .thyl tert-butyl ether _ _ 100 8 39 J 700-130 83 9 <br /> urrogare a a a-Trtfluororoluene 100 994 600-140 994 <br /> Matrix Spike OQ1QQ7._3-MS1 5912276-11 <br /> Benzene 1/3/00 too ND 859 ug/1 600-140 858 <br /> Toluene " 100 ND 8 63 600-140 863 <br /> Ethylbenzene 100 ND 8 57 " 600-140 85.7 <br /> Xylenes(total) 300 ND 255 600-140 850 <br /> Methyl tert-butyl ether - _ " 100 ND 572 600-140 57.2 2 <br /> Surrogate aa,a-Trtjluorotoluene 100 971 60 0-_140 971 <br /> Matrix Snrke Dup 0010023-MSDI 5912276-11 <br /> Bcnzcnc I/3/00 too ND 8 75 ug/1 600-140 87 5 250 1.96 <br /> Toluene too ND 8 76 600-140 876 25 0 150 <br /> Ethylbcnzenc 100 ND 8 75 600-140 875 25 0 208 <br /> Xylenes(total) 300 ND 264 600-140 $8.0 250 347 <br /> Methyl cert-butyl ether 100 ND _8_66_ M 600-140 86.6 250 409 3 <br /> Surragate a a a-Trilluoraroluene 100 9 88 600-140 988 <br /> Batch 0010053 Date Prepared__I/dCQQ Extraction Method- EPA 5030B e0 <br /> Blank 0010053-BLK1 <br /> Purgeable H),drocarbons 1/4100 ND ugA 500 <br /> Benzene ND 0500 <br /> Toluene " ND 0 500 <br /> Ethylbenzene ND " 0 500 <br /> Xylenes(coral) " ND 0 500 <br /> ,wUcthyl tett butyl ether ND 250 <br /> equoia Analytical-Sacramento Refer to end of report for text of pores and definitions <br /> Pago 4 of 6 <br /> 6/9 d :)bs/uI0f103S WHOS 60 00, OT Nthf <br />