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Sequoia $i9 Stryker Avenue Suite <br /> Sacramento, CA 958344 <br /> (916)921-9600 <br /> Analytical FAX( 921-0700 <br /> ywww sequoquoyalabs corn <br /> Stratus Environmental Project ARCO 2186, Stocxton,CA Sampled 9/27/00 <br /> 3330 Cameron Park Drive,Ste 550 Project Number N/A Received 9/29/00 <br /> Cameron Park,CA 95682 Project Manager Jay Johnson Re arced 10/10/00 <br /> ��- <br /> ��-„�,n.. .�;� <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0100024 Date Prepared 10/3/00 Extraction Method EPA 5030B McOH <br /> Man k 0100024-BLKI <br /> Purgeable Hydrocarbons 10/3/00 ND ugd 500 <br /> Benzene <br /> Toluene ND 0 500 <br /> ND ” 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Surrogate a,a,a-T47uorotoluene 100 104 <br /> 600-140 104 <br /> LCS 0100024-BS1 <br /> Benzene 10/3/00 100 996 ug/1 700-130 996 <br /> Toluene 100 998 700-130 998 <br /> EthyIbenzene 100 104 700-130 104 <br /> Xylenes(total) 300 _ 310 70 0-130 I03 <br /> Surrogate a,a a-Tr�uorotoluene 100 105 600-140 105 <br /> Wlti-,x Soike 0100024-MSI SCIOOIO-04 <br /> Benzene 10/3/00 100 1 60 112 ug/1 600-140 960 <br /> Toluene 100 ND 943 600-140 943 <br /> Ethylbenzene 10 0 0 542 10 9 600-140 104 <br /> Xylenes(total) 300 1 17 323 it Surrogate 60 0-140 104 <br /> a,a,a-Tracorotoluene 100 112 60 0-140 112 <br /> Matrix Spike Dup 0100024-MSDI 5010010-04 <br /> Benzene 10/3/00 100 1 60 113 ug/l 600-140 970 250 104 <br /> Toluene 100 ND 9 50 1160 0-140 95 0 25 0 0 740 <br /> Ethylbenzene IO 0 0542 110 600-140 105 25 0 0 957 <br /> Xylenes(total) 300 1 17 323 <br /> Surrogate a,ab0 0-140 104 25 0 0,a-Tr; 10 0 9 76 600-140 976 <br /> Batch 0100042 Date Prepared 1014100 Extraction Method EPA 5030E LleOH, <br /> Blank 0100042-BLK1 <br /> Purgeable Hydrocarbons 10/4/00 ND ug/l 50 0 <br /> Benzene ND <br /> Toluene ND 0 500 Ethylbenzene ND 0 5000 500 <br /> Xylenes(total) __ ND " 0 500 <br /> Surrogate a a a-Truorotoluene 10 0 - 110 60 0-140 110 <br /> LCS 0100042-BS I <br /> Benzene 10/4/00 10 0 100 ug/l 700-130 100 <br /> Toluene 100 100 It700-130 100 <br /> lak <br /> uoia Analytical-Sacramento *Refer to end ofreport for text ofnotes and definitions <br /> Pape 5 of 9 <br />