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Sequoia 1551 Industrial Road <br /> San Carlos CA 94070-4111 <br /> (650) 232-9600 <br /> Analytical <br /> FAX (650) 232-9612 <br /> Sequoia-Morgan Hill Project 1 Sampled 7/22/99 <br /> 885 Jarvis Drive Project Number 9070023(ATC Assoc) Received 7/29/99 <br />' Morgan Hill,CA 95037 Project Mana er Kayvan Kimyai Reported 8/5/99 1322 <br /> '.— ` 'Volatile Orgatuc©vienated Compounds by EPA Method 8260A/Quahtk Con&4l <br /> Sequoia Aanalytical-San Carlos <br /> ` �._ _ n <br /> Date Spike Sample !C Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br />' Batch 9070136 _Date Prepared 7/28/99 Extraction Method EPA 5030B 1Pg <br /> Blank 9070136-BLK1 <br /> Ethanol 7/29/99 ND mg/kg 500 <br />' Tert-butyl alcohol ND too <br /> Methyl tert-butyl ether ND 0 100 <br /> Di-isopropyl ether ND 0 100 <br />' Ethyl tent-butyl ether ND 0 100 <br /> Tert-amyl methyl ether ND 0 100 <br /> Surrogate 1,2-Dichloroethane-d4 250 228 700-121 912 <br /> Blank 9070136-BLK2 <br /> Ethanol 7/30/99 ND mg/kg 500 <br /> Tert-butyl alcohol ND " 100 <br /> Methyl tert-butyl ether ND " 0 100 <br /> isopropyl ether " ND 0 100 <br /> yl tert-butyl ether ND 0 100 <br /> Tert-amyl methyl ether ND " 0 100 <br />'Surrogate 12-Dichloroethane-d4 250 230 700-121 920 <br /> Blank 9070136-BLK3 <br /> Ethanol 8/3/99 ND mg/kg 500 <br />'Tert-butyl alcohol ND 11100 <br /> Methyl tert-butyl ether " ND It <br /> 0100 <br /> Di-isopropyl ether ND 0 100 <br /> Ethyl tert-butyl ether ND 0100 <br /> Tert-amyl methyl ether ND 0100 <br /> Surrogate 12-Dichloroethane-d4 11250 286 700-121 114 <br /> LCS 9070136-BS1 <br /> Methyl cert-butyl ether 7/29/99 250 209 mg/kg 700-130 83 6 <br /> Surrogate 1 2-Dichloroethane-d4 11 250 240 700-121 960 <br /> LCS 9070136-BS2 <br /> Methyl tent-butyl ether 7/30/99 250 205 mg/kg 700-130 820 <br /> Surrogate 12-Dichloroethane-d4 250 2.38 700-121 952 <br />' LCS 9070136-BS3 <br /> Methyl tert-butyl ether 8/4/99 250 271 mg/kg 700-130 108 <br /> Surrogate 1,2-11ichloroethane-d4 150 283 700-121 113 <br /> Matrix Spike 9070136 IMS1 L907260-21 <br /> thyl tert-butyl ether 7/29/99 250 ND 206 mg/kg 600-140 82 4 <br /> Sequoia Analytical-San Carlos "Refer to end of report for text of notes and definitions <br />' Page 17 of 20 <br />