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885 Jarvis Drive <br /> Sequoia <br /> ■.'`-/' J_ Morgan Hill , CA 95037 <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: Scott Boor Reported: 12/29/99 <br /> Total Purgeable Hydrocarbons (C6-C12). BTEX and MTBE by DHS LUF"r/Quality Control <br /> Sequoia Analytical - Morgan Hill <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov. Limits % Limit % Notes* <br /> Batch : 9120790 Date Prepared : 12/27/99 Extraction Method : EPA 50308 [PIT] <br /> Blank 9120790-BLKI <br /> Purgeable Hydrocarbons 12/27/99 ND ug/1 50.0 <br /> Benzene " ND to 0.500 <br /> Toluene ND 0,500 <br /> Ethylbenzene ND 0.500 <br /> Xvlenes (total) ND to 0.500 <br /> Methyl tert-butyl ether ND 2.50 <br /> Surrogate: a, a, a-Triuorotoluene 10. 0 9. 87 70. 0- 130 98. 7 <br /> LCS 9120790-BSI <br /> Purgeable I lv_dr_ocarbons 12/27/99 250 214 ug/I 70.0- 130 85 .6 <br /> Surrogate: a, a, a-Triuorotoluene It MO - - - - 11. 5 720- 130 113 - - - - - _-- <br /> Matrix Spike 9120790-MSI for1912683-06 <br /> Purgeable Ilvdrocarbons 11i27/99 250 ND 242 uto 60.11- 140 96.8 <br /> Surrogate: a, a, a- Trinuorotoluene " 1 /1. 0 11,3 of -0. 0- 130 Ili <br /> Matrix Spike Dun 9120790- NISDI N1912683-06 <br /> Purgeable Ilvdrocarbons 1 -:27199 250 ND 326 uwl 600- 140 90.4 25 0 6.84 <br /> Surrogate: a, a, a-Trinuorotoluene er10.0 IIS 720430 113 <br /> Batch: 9120792 Date Prepared: 12/27/99 Extraction Method: EPA 50306 IP/TI <br /> Blank 9120792-BLKI <br /> Purgeable Hydrocarbons 12/27/99 ND us/I 50.0 <br /> Benzene ND " 0.500 <br /> Toluene ,ND It 0.500 <br /> FIh\lhcnzane ND It0.M0 <br /> 'iene� rn,c. li D )?D11 <br /> \iclhNl lert- but% l ether IND Id3.50 <br /> .4arrogate: a. a. a-Tr(Jluororoluene 10.11 10. 6 " -0- 11- 130 126 <br /> LCS 9120792-BSI <br /> Purgeable Hydrocarbons 12/27/99 250 236 ug/I 70.@- 130 94.4 <br /> Surragare: a. a. a-Trilluororoluene to / 0. 0 13.3 " '0-0- /30 133 3 <br /> Matrix Spike 9120792-MSI )7912683-04 <br /> Pumeahle Ilvdrocarbons 12/27/99 250 ND 298 uerl 6031- 140 119 <br /> .Swrogare: a. a. a-TrUlumoenluene " / 0. 0 151 F1 70, 0- 130 1_ 1 4 <br /> 3latrix .Snike Dun ° 120702-?iSD1 3f9I2683-04 <br /> Purgeable Hydrocarbons I2i2T99 250 ND 242 ug/I 60.0- 140 96,8 25. 0 20.6 <br /> tkquoiu Anal ticai - :Nloraun Hill "Refer to end of repori /or re.n of rmres and de7imrious. <br />