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� Mr Travis Marshall <br />Division of Reclamation Mining and Safety <br />101 South 3rd Suite 301 <br />Grand Junction, CO 81501 <br />February 9, 2012 <br />(a Uti `. <br />Shell International Exploration & Production / <br />RECEIVED <br />FEB 2 1 2012 <br />b AND JUNCTION FIELD OFFICE <br />PECtAWTITION MINING & SAFETY <br />M <br />Shell International Exploration & <br />Production Company <br />Bellaire Technology Center <br />3737 Bellaire Blvd <br />Houston, TX 77025 <br />Internet http: / /www.shell.com /ep <br />Subject: Modification to Notice of Intent # P- 2010 -26; Shell Exploration and Production Company, Rio Blanco County, CO <br />Dear Mr. Marshall, <br />Shell requests modification of the above cited operation to dispose of drill cuttings and minimal attendant water in an on- <br />site cuttings pit. The attached revised site map shows the as -built contours and final facilities layout and the cuttings pit. <br />The small road to the north of the main access road is within the existing right -of -way and does not constitute additional <br />disturbance. The road has been constructed to provide access to the power supply meter. <br />In the original project description, drill cuttings were to be disposed of offsite. At the request of Rio Blanco County to <br />minimize road traffic, and with the verbal permission of the BLM, Shell requests a change to the original plan to allow <br />disposal of a portion of the drill cuttings on site (see attached figure). The cuttings to be disposed of onsite are those <br />comprising strata from ground surface to a depth of 1840 ft, which is top of the L4 water bearing unit. All remaining <br />cuttings and associated brine from the L4 will be transported from the site and disposed of as indicated in the original <br />project description. Reclamation of the cuttings pit will consist of grading to contour and placement of sufficient growth <br />medium to ensure successful revegetation of the site for rangeland post- mining land use. <br />Site grading was completed in December 2011 and an as -built survey was completed shortly thereafter. All necessary <br />stormwater management features were included in the construction stormwater plan and will be modified as necessary to <br />support operations. Buildings labeled "Construction" and "Wells" are temporary buildings to be removed following <br />construction. All other buildings and facilities will be on -site during operations, and are subject to reclamation bonding. <br />The attached figures will be used in future communications related to layout of the East RDD pilot project. <br />Please contact me if you have questions or need additional information. You may reach me at (713)245 -7385. <br />Sincerely, <br />Harry H 'osey <br />Senior Production Geologist <br />Cc: Paul Daggett, BLM -WRFO <br />Jeff Stevenson, Houston file <br />Tom Gillis, Denver file <br />