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885 Jarvis Drive <br /> Sequoia <br /> Morgan 08 77 -9600 <br /> 37 <br /> (408) 776-9600 <br /> Analytical FAX (408) 782-6308 <br /> Blaine Tech Services (Chev) Project: Chevron 9-3232 (8660 Lower Sacto, Stockton) Sampled: 12/15/99 <br /> 1680 Rogers Avenue Project Number: 991215-Y2 Received: 12/16/99 <br /> San Jose, CA 95112 Project. Manager: ScottBoor Reported: 12/29/99 <br /> - <br /> Volatile Organic Oxygenated Compounds by CPA Method 8260A/Quality Control - <br /> `- <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 : 9120088 Date Prepared : 12/17/99 Extraction Method: EPA 5030B IP/Tl <br /> Blank 9120088-BLKI <br /> Ethanol 12/17/99 ND ug/1 1000 <br /> Tert-butyl alcohol it ND " 200 <br /> Methyl cert-butyl ether to ND of 2.00 <br /> Di-isopropyl ether It ND 2.00 <br /> Ethyl tert-butyl ether It ND 2.00 <br /> Tert-amyl methyl ether It ND 2.00 <br /> Surrogate: 1, 2-Dichloroethane-d1 - of 50. 0 44. 6 to 76. 0-114 89.2 <br /> Blank 9120088-BLK2 <br /> Ethanol 12 30/99 ND ug/l 1000 <br /> Tert-butyl alcohol " ND of 200 <br /> Methyl telt-butyl ether IND If 2.00 <br /> Di-isopropyl ether IND 2.00 <br /> EthN' I tert-butch ether ND 2.00 <br /> Tert-amyl methyl ether ItND 2.00 <br /> Surrogate: 1.'-Dichloroethane-d4 It 50]) 46. 3 :6.0- 114 82. 6 <br /> Blank 9120088-BLK3 <br /> Ethanol - 12, 21 /99 ND ug/l 1000 <br /> Tcrt-butyl alcohol ND 200 <br /> Methyl ten-butyl ether ND " 2.00 <br /> Di-isopropyl ether to ND " 2.00 <br /> Ethyi tert-buta ether if ND to 2.00 <br /> Cert-amcl meth\i ether if ND to 3.00 <br /> .Surrogate. l. '-Dichloroethane-d1 50.0 11. 9 to '6. 0- ( /4 89. 8 <br /> % Ielh� I telt - 'nut% I ether I - 't)9 511. 0 -0H_ I SII Ili' <br /> Surrogate_ 1. '-Dichloroetha7e-d4 i0. 0 15. 6 -6. 0- 114 91 <br /> LCS 9120088-BS2 <br /> MuhyI terl -bnI}'I ether 11, 20/99 50.0 53 .8 ug/I 70. 0- 1 3O 108 <br /> Surrgeate: 1. -Dichloroethane-d1 to 50. 0 48. 0 " '6. 0- 114 96. 0 <br /> LCS 9120088-BS3 <br /> Methyl ter[-hug-I ether 1 '_ 21 /99 50.0 5211 uvl 7(I 0- 130 104 <br /> Surrogate: !'-Dichloroethane-tN 50.0 48. .7 it -6.0- 111 97. 4 <br /> Mums Spike 9120088-17S1 L912148-27 <br /> Methyl tert-bund ether 12. 18/99 50. 0 ND 50. 8 uul 60.0- 140 102 <br /> Sequoia Analctical - Morgan Hill S2erer ro end o ) eport-lor telt tilt noies and deibulogns. <br /> Paee 6 of 9 <br />