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1551 Industrial Road <br /> Sequoia San Carlos, CA 9407D-4111 <br /> (650) 232-9610 <br /> Analytical FAX(650) 232-9612. <br /> Blaine Tech Services Project Chevron(3) Sampled 8/26/99 <br /> 1680 Rogers Avenue Project Number Chevron 9-6171/990826-KI Received 8/27/99 <br /> San Jose,CA 95112 Pro ect Manager Chnstme Lillie Reported 9110/99 <br /> MTotal Purgeable Hydrocarbons(C6-02),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9090015 Date Prepared 912199 Extraction Method EPA 5030B [P/Tl <br /> Blank 9090015-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 9/2/99 ND ug/l 500 <br /> Benzene 11ND 0 500 <br /> Toluene 11ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate a,a,a-Trifluorotoluene 100 103 700-130 103 <br /> LCS 9090015-BSI <br /> Purgeable Hydrocarbons as Gasoline 9/2/99 250 236 ug/1 700-130 944 <br /> Surrogate a,a,a-Trifluorotoluene 11100 827 to 700-130 827 <br /> Matrix Strike 9090015-MSI L908221-07 <br /> glik�rgeable Hydrocarbons as Gasoline 9/2/99 250 ND 288 ug/l 600-140 115 <br /> rogate a a a-Trif uorotoluene 11100 770 to 700-130 770 <br /> Matrix Spike Du p 9090015-MSD/ L908221-07 <br /> Purgeable Hydrocarbons as Gasoline 9/2/99 250 ND 247 ug/l 600-140 988 250 152 <br /> Surrogate a a,a-Trifluorotoluene to100 678 to 700-130 678 <br /> Batch 9090016 Date Prepared 9/2199 Extrachon Method EPA 5030E PIT <br /> Blank 9090016-BLKI <br /> Purgeable Hydrocarbons as Gasoline 9/2/99 ND ug/1 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate a,a a-Trifluorotoluene 100 8 64 700-130 864 <br /> LCS 9090016-BSI <br /> Purgeable Hydrocarbons as Gasoline 9/2/99 250 223 ug/l 700-130 892 <br /> Surrogate a,a,a-Trifluorotoluene to100 8 01 el700-130 801 <br /> Matrix Spike 9090016-MS1 L908220-01 <br /> Purgeable Hydrocarbons as Gasoline 9/2/99 250 ND 246 ug/l 600-140 98 4 <br /> Surrogate a,a,a-Trifluorotoluene r, 10 0 747 700-130 74 7 <br /> Matrix Spike Dup 9090016-MSD1 L908220-01 <br /> Purgeable Hydrocarbons as Gasoline 9/2/99 250 ND 251 ugll 600-140 100 250 161 <br /> uoia Analytical- San Carlos *Refer to end of report for text of notes and definitions <br /> Page 10 of 13 <br />