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Sequoia U 885 Jarvis Drive <br /> Morgan Hill,CA 95037 <br /> f � Analytical (408) 776-9600 <br /> FAX(408) 78Z-6308 <br /> f <br /> ATC Associates,Inc. Project: SUSD/Corporation Yazd Sampled: 2123199#0 2124/99 <br /> 1117 Lone Palm Ave.,Suite B Project Number: na Received: 3/1/99 <br /> Modesto,CA 95351 Project Manager: Tom Lutterman <br /> Reported: 9/3/99 <br /> -�- <br /> ,° <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Ili Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 9020581 Date Prepared: 2126/99 Extraction Method: EPA 5030 soils McOH <br /> BIank 9020581-BLKI <br /> Benzene 2/26199 ND ug/kg 100 <br /> Toluene ND 100 <br /> Ethylbenzene " ND " 100 <br /> Xylenes(total) _ __ _ ND 200 <br /> Surrogate: a,a,a-Triuorotoluene ------ 30000 29700 " -- -- — 99.0 --- ��------- <br /> BIank 9020581-BLK2 <br /> Methyl tert-butyl ether 3/5199 ND ug/kg 250 <br /> Benzene ND 50.0 <br /> Toluene ND 50.0 <br /> Ethylbenzene ND 50.0 <br /> ,Xylenes(total) ND 100 <br /> agate. a.a,a-Trifluorotoluene� 30000 _ 29300 97.7 <br /> LCS 9020581-BS1 <br /> Benzene 2/26/99 10000 10100 ug/kg 101 <br /> Toluene 10000 9890 98.9 <br /> Ethylbenzene 10000 9800 98.0 <br /> Xylenes(total) _ 30000_ 29600 _ 98.7____ <br /> Surrogate: a,a,a-Trifluorotoluene� 30000 31400 105 <br /> LCS 9020581-BS2 <br /> Benzene 3/5/99 10000 10500 ug/kg 105 <br /> Toluene 10000 I0000 100 <br /> Ethylbenzene 10000 9780 97.8 <br /> Xylenes(total) 30000 29600_ 98.7 <br /> Surrogate: a,a,a-Trifluorotoluene 30000 31600 105 <br /> Matrix Spike 9020581-MSI P902494-01 <br /> Benzene 2/26/99 10000 104 10700 ug/kg 106 <br /> Toluene 10000 319 10800 105 <br /> Ethylbenzene 10000 ND 10600 106 <br /> Xylenes(total) 30000 ND 32100 107 <br /> Surrogate: a,a,a-Triuorotoluene 30000 32400 108 <br /> Matrix Spike Dun 9020581-MSD/ P902494-01 <br /> Benzene 2/26199 10000 104 10600 ug/kg 105 0.948 <br /> Tolueri 10000 319 10700 104 0.957 i <br /> Ethylbenzene 10000 ND 10500 105 0.948 <br /> nes(total) 30000 ND 31600 105 1.89 <br /> Sequoia Analytical-Petaluma *Refer to end ofreport for text of notes and definitions. <br /> Page 20 of 28 <br />