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Page 1 of 4 <br /> From: Sobieraj, Justin J. <br /> Sent: Monday, May 07, 2007 10:08 AM <br /> To: Hurd, Michael T.; White, Jeffrey D. <br /> Subject: FW: CVX Mountain House#1 Analytical Results <br /> Chromatograph Analysis of CVX Mountain House#1: <br /> From: Chen, Grace(GRAC) [mailto:GRAC@chevron.cam] <br /> Sent: Thursday, April 19, 2007 1:48 PM <br /> To: Sobieraj, Justin J. <br /> Ce: Chen, Grace (GRAC); Moir, Michael (MMoir) <br /> Subject: RE: CVX Mountain House #1 Analytical Results <br /> Justin, <br /> Carbon ranges for gasoline, diesel, other petroleum products and crude oil, all overlap and causes some <br /> confusion. <br /> TPH method defines the results. As mentioned below, TPH GRO (gasoline range <br /> organics)represents organic compounds being extracted by a particular solvent specified by the method, in C6 to <br /> C12 range. In the same manner, TPH DRO (diesel range organics), represents organic compounds in C10 to <br /> C28 range. Either method is not to be used to identify the fuel type. The high concentration of the TPHg <br /> and TPHd may be influenced by the high concentration of TPHc which could come from San Joaquin Valley <br /> Crude which is found in the area. <br /> If there's any question, please let me know. Thanks. <br /> Grace <br /> From: Sobieraj, Justin J. [mailto:JUSTIN.J.SOBIERAJ@Saic.com] <br /> Sent: Thursday, April 12, 2007 12:46 PM <br /> To: Chen, Grace (GRAC) <br /> Subject: RE: CVX Mountain House #1 Analytical Results <br /> Grace- <br /> Any chance you have been able to look at the Mountain House#1 chromatographs? I know it probably isn't on <br /> the top of you list, but just wanted to get an ETA on your review. <br /> Thanks, <br /> Justin Sobieraj <br /> Geologist <br /> SAIC <br /> 1000 Broadway, Suite 675 <br /> Oakland, CA 94607 <br /> Main: 510.433.0835 <br /> Direct: 510.466.7119 <br /> Fax: 510.446.7919 <br /> sobierajj@saic.com <br /> From: Chen, Grace (GRAC) [ma i Ito:GRAC@chevron.com] <br /> Sent: Thursday, March 29, 2007 4:13 PM <br /> To: Sobieraj, Justin J. <br /> Cc: Hurd, Michael T. <br /> Subject: RE: CVX Mountain House #1 Analytical Results <br /> file://N:1Chevron Sites and ProjectslHPP Project Sites\Mountai.n House. Site: rt',./C'orresp(,n... 5115112007 <br />