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Se(-j u o i a 819 Striker Avenue,Suite 8 <br /> `� Sacramento,CA 95834 <br /> (916) 921-9600 <br /> f Analytical FAX(916)921-0100 <br /> L wwtivsequofalal7s.com <br /> Delta Environmental Consultants Project: ARCO 5469, Stock-ton,CA <br /> 3164 Gold Camp Drive,Ste.200 Project Number: N/A Sampled: 615100 to 618/00 <br /> Rancho Cordov CA 95670 Received: 6/9/00 <br /> � Project Manager: Jay Johnson Reported: 6/28/00 <br /> e file£)xyge an to Compo nu ds by E - �6 nn a 2 - <br /> ,r� IR�" <br /> '', PA ,. OAIQaality�G" <br /> , <br /> --. ..«.. •..,c». ...:._..,�-n,-.,t'-b.,.a. ..r.....n....,x.: 3m,---a..'m,....-a- �iwz+-r.�-rr S`` `13�.�<�w <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Ana]}to Analyzed Level Result Result Units Recov. Limits % Limit % Nates* <br /> Batch' 0060134 Date Pre ared: 6115100 Extraction Method: EPA 5030$ [-McOH <br /> Blank 0060134-BLKI <br /> Tert-butyl alcohol 6/15/00 <br /> Methyl tert-butyl ether ND mg/kg 10.0 <br /> " l4TD ' <br /> Di-isopropyl ether ND 0.100 <br /> Ethyl tert-butyl ether ND " 0.100 <br /> Teri-amyl methyl ether NDEthanol 0.100 <br /> I,2-Dichloroethaae '+ h7D 1501\D „ <br /> Ethylene dibromide ND 0.100 Surrogate: 0.100 <br /> 1,2-DCA-d4 2.50 2,62 60,0-140 105 <br /> LCS 0060134-13S 1 <br /> Me ]tert-butyl ether 6115/00 2.50 <br /> S ate: 1,2-DC4-d4 - ++ 2.17 m�kg 70.0-130 86.8 <br /> 2.50 2.54 60.0-140 102 - ------- <br /> Matrix Strike 0060134-MSI 5006120-12 <br /> Methyl tert-butyl ether 6/15/00 2.50 ND 1.92 Mg/kg a <br /> Surrogate: 1,2-DC4-d4 � 60.0-140 76,9 <br /> 2.50 2.21 60.0-140 88.4 -- <br /> Alatrix Spike Dup 0060134-MSDI 5006120-12 <br /> Methyl tert-butyl ether 6/15100 2.50 ND 1.18 mg/kg <br /> Surrogate: 1,2-DCA-d4 600-140 8. 25.0 __3.08 <br /> a 2.50 2.22 60.0-140 58.8 "- <br /> Batch: 0060150 Date Prepared: 6115100 Extraction Method: EPA 50308 fMeOFU <br /> Blank 0060150-BLKI <br /> Tert-butyl alcohol 6116100 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 /> Ethanol <br /> 'Pert-amyl methyl ether " ND „ 0.100 <br /> 'D 1 <br /> 1,2-Dichloroethane ]\ 0 <br /> ND " Q.1550 <br /> Ethylene dibromide ND 0.100 _ <br /> Surrogate: 1,2-DC.4-d4 2.50 2.90 60.0-140 <br /> Blank 0060150-BLK2 <br /> Tert-butyl alcohol 6/16/00 ND mg/kg 10.0 <br /> Methyl tert-butyl ether ND O.IOD <br /> Di-isopropyl ether NO 0.100 <br /> Ethyl tert-butyl ether " ND 0 100 <br /> Tt yl methyl ether " „ <br /> 0.100 <br /> Sequoia Aaalytica]-Sacramento *Refer to end ofrepOrt for text of notes and definitions. <br /> i <br /> I <br /> Page 22 of 25 <br />