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885 Jarvis Drive <br /> Sequoia Morgan Hill,CA 95037 <br /> (408) 77b-96iD0 <br /> Analytical FAX(408) 782-6308 <br /> �„# 0 <br /> Blaine Tech Services(Shell) Project: Equiva Sampled: 10/19/99 <br /> 1680 Rogers Avenue Project Number: 141 N. El Dorado St Received: 10/20/99 <br /> San lose, CA 95112 Project Manager: Leah Davis Reported: 11/4/99 <br /> Total.Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFr/Quality Control <br /> _ " Sequoia-Analytical=Morgan=Hilt <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov. Limits % Limit % Notes* <br /> LCS 9110008-BS 1 <br /> Purgeable Hydrocarbons 11/11/99 250 242 ug/l _- 70.0-130 96.8 <br /> Surrogate: a,a,a-Trifluorotoluene 1110.0 10.6 70.0-130 106 <br /> Matrix Spike 9110008-MSI M910804-06 <br /> Purgeable Hydrocarbons ll/l/99 _250 .__ND __ 231 - ug/l - -- 60.0-140 92.4 -_ <br /> Surrogate: a,a,a-Trifluorotoluene 1110.0 10.0 70.0-130 100 <br /> Matrix Spike Dup 9110008-MSD1 M910804-06 <br /> Purgeable Hydrocarbons 11/1/99 250 ND 225 ug/l 60.0-140 90.0 25.0 2.63 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 9.6.1 70.0-130 96.4 <br /> Batch: 9110009 Date Prepared- II/l/99 Extraction Method: EPA 5030E1P/T1 <br /> Blank 9110009-BLK1 <br /> Purgeable Hydrocarbons 11/1/99 ND ug/l 50.0 <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 2.50 <br />- Surrogate: a,a,a-Trifliiorotoluene T� 10.0 9 78_"_70;0=1. 0_97.8 <br /> LCS 9110009-BSI <br /> Purgeabie Hydrocarbons 11/1199 250 242 ug/1 _70.0-130_ 96.8 _ <br /> Surrogate: a,a,a-Trifluorotoluene " 10.0 13.3 70.0-130 133 2 <br /> Matrix Spike 9110009-MSI M910802-01 <br /> Purgeable Hydrocarbons ll/l/99 250 ND 2_46ugll _60.0-140 98.4 _ <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 13.5 70.0-130 135 2 <br /> Matrix Spike Dup 9110009-MSD1 M910802-01 <br /> Purgeable Hydrocarbons I]/l/99 250 ND 236 ug/l 60.0-_140 94.4 25.0_ 4._1_5_ <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 13.0 <br /> Batch: 9110010 Date Prepared: 11/1199 Extraction Method: EPA 5030B IP/Tl <br /> Blank 9110010-BLK1 -_ -..-... ,_.. . <br /> Purgeable-Hydrocarbons 1-1/-1/99 ND ug/1-- -- - - 50.0--- <br /> Benzene <br /> 0.0--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 2.50 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for text of notes and definitions. <br /> Page 7 of 1 I <br /> Q <br />