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Sequoia 819 Striker Avenue Suite 8 <br /> 1 Sacramento CA 95834 <br /> (916)921-9600 <br /> D- Analytical FAX (916)921-0100 <br /> Cambria Environmental Project Equilon 440 W Charter Way, Stockton Sampled 6/25/99 <br /> 270 Perkins Street Project Number 88870583 Received 6/25/99 <br /> Manager Wayne Chiu Reported 6124,7/$-9199 <br /> Sonoma CA 95476 Project <br /> Volatile Oxygenate Compounds by EPA Method 8260A/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch. 9070009 Date Prepared, 7/1199 Extraction Method, EJ!A 5030B IMCOH] <br /> Blank 9070009-BL€I <br /> Tert-butyl alcohol 7/2199 ND mg/kg 10 0 <br /> Methyl tert-butyl ether ND 0 100 <br /> Di-isopropvl ether ND 0 100 <br /> Ethyl tert-butyl ether ND 0 100 <br /> Tert-amyl methyl ether ND 0 100 <br /> Surrogate 12-DC4-d4 250 266 600-140 106 <br /> LIU 9070009-BS1 <br /> Methyl teri-butyi ether 7/2/99 250 240 mg/kg 70 0-130 96 0 <br /> Surrogate 12-DCA-d4 11250 287 60 0-140 115 <br /> Matrix Spike 9070009-MSI <br /> 0 <br /> Methyl tert-butyl ether 7/1199 250 ND 232 mg/kg 60 0-140 92 8 <br /> Surrogate 1 2-DCA-d4 11250 266 600-140 106 <br /> Matrix Spike Duo - S906417-01 <br /> Methyl tert-buivl ether 711/99 2 50 N240 me/kg 60`0=14 <br /> D0`-`96 0 25 0 3 39 <br /> .Surrogate—1 2=DCA�d4 11 250 2 72 11600-140 109 <br /> -- Batch. 90700L0 Date Prepared. 711129_ _ __ _ __ _„__ __ _ion FPA 5 <br /> 030B [MeOHI <br /> Blank 907001 <br /> Tert-butyl alcohol 711199 - ND mg/kg 100 <br /> Methyl ten-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 /> Surrogate 12-DCA-d4 250 262 600-140 105 <br /> 1.CS 90700]Q-BSI <br /> Methyl tert-butyl ether 7/1/99 2 50 213 mg/kg 700-130 85 2 <br /> Surrogate 1 2-DCA-d4 112 50 258 60 0-140 103 <br /> Matrix SpILC 9070010-MS1 S206417-15 <br /> Methyl tert-butyl ether 7/l/99 250 ND 215 mg/kg 60 0-140 8b 0 <br /> Surrogate 12-DCA-d4 11250 241 600-140 964 <br /> Matrix spike nun 90709121 5906417-15 � <br /> Methyl tert-butyl ether 711/99 250 ND 1 93 mg/kg 60 0-140 77 2 2S 0 10 8 <br /> Sequoia Analytical- Sacramento *Refer to end of report for test of notes and definitions <br /> Page 16 of 18 <br />