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Sequoia 819 Stakes Avenue,Suite 8 <br /> Sacramento CA 45834 <br /> (916)921-9600 <br /> FAX(916)921 <br /> Analytical <br /> wwww secluoialabs com coin <br /> Delta Environmental Consultants-Cameron Park Project ARCO 2168, Stockton,CA Sampled 813100 <br /> 3330 Cameron Park Dr Project Number N/A Received 8/18/00 <br /> Cameron Park,CA 95682 Project Manager Jay Johnson Reported 9120/00 <br /> M , ,'w a'y 7 „r"b - -y - ac : 3 r w i nrr..-a k <br /> ;, _ _ �-~ `V61at11e OXO Qeiiate Coni}�ound"s byl <br /> EPA Metliod 8260A/ 0ht� Control,F 3x -F a <br /> S ry ZySr 1y8.. ...Y�n gY...l v�S yry .terx b2 ._..po i 15N]a.« J <br /> �r�l f a.,nl'vtlt f•-• '�''r yy.,f.M �e"3' 4 y �= tr...a-9'4 V Y da > as .i�r <br /> ry RSC I101diAil'dIVtICa1-SaCramento3i �`x � { �r rn rc 4_� <br /> i uP".x• i ,.dlh. ° °{. ,`R`y.^.-e '"W '�".z`A _a"T �F� >:-:, _ s ..y 1� ..,,.nY wJ»",K-x�.,,.'€ ,,a <br /> Date Spike Sample QC Reporting Limit Reeov RPD RPD <br /> IAnalvte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0080221 Date Prepared 8/10100 Extraction Method EPA 5030B [MeOHI <br /> Blank 0080221-BLK1 <br /> Tert-butyl alcohol 8/10100 ND mg/kg 100 <br /> Methyl tert-butyl ether ND 0100 <br /> DI-isopropyl ether ND 0 100 <br /> Ethyl tert-butyl ether ND 0 100 <br /> Tert-amyl methyl ether ND 0 100 <br /> Ethanol ND 150 <br /> Surrogate 12-DCA-d4 250 235 600-140 940 <br /> LCS 0080221-BSI <br /> Methyl tert-butyl ether 8/10/00 2 50 201 mg/kg 700-130 804 <br /> Surrogate 1,2-DCA-d4 2 50 241 600-140 964 <br /> Matrix Spike 0080221-MSI 5007404-13 <br /> Jjj�yl tert-butyl ether 8110/00 250 ND 1 96 mg/kg 600-140 784 <br /> gate 1 2-DCA-d4 11250 212 re 600-140 848 <br /> Matrix Spike Dup 0080221-MSDI 5007404-I3 <br /> Methyl tert-butyl ether 8/10/00 250 ND 194 mg/kg 600-140 776 25 0 103_ <br /> Surrogate 12-DCA-d4 11250 215 " 600-140 860 <br /> Batch 0080222 Date Prepared 8/14/0.0 Extraction Method EPA 5030B [MeOHI <br /> Blank 0080222-BLKI <br /> Tert-butyl alcohol 8/14/00 ND mg/kg 10 0 <br /> Methyl tert-butyl ether ND 0 100 <br /> Di-isopropyl ether ND 0 100 <br /> Ethyl tert-butyl ether ND 0 100 <br /> Tert-amyl methyl ether ND 0 100 <br /> Ethanol ND 150 <br /> Surrogate 12-DCA-d4 250 268 600-140 107 <br /> LCS 0080222-BSI <br /> Methyl tert-butyl ether 8/15/00 250 218 mg/kg 700-130 872 <br /> Surrogate 1,1-DCA-d4 11250 2 70 ro600-140 108 <br /> Matrix Spike 0080222-MSI 5008257-03 <br /> Methyl tert-butyl ether 8115100 250 ND 192 mg/kg 600-140 768 <br /> Surrogate 1,2-DCA-d4 11250 234 " 600-140 936 <br /> Matrix Spike Duo 0080222-MSD1 S008257-03 <br /> Methyl tert-butyl ether 8115/00 2 50 ND 1 92 mg/kg 600-140 768 25 0 0 <br /> is Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 4 of 7 <br />