2012-02-21_REVISION - P2010026 (2)

Home Browse Search

Mr. Paul Daggett Bureau of Land Management 220 East Market St Meeker, CO 81641 February 9, 2012 Subject: Revision to RDD Lease BLM #COC 69166, Multi - Mineral Lease, Shell Exploration and Production Company, Rio Blanco County, CO Dear Mr. Daggett, 1 Z© o — Z--6 - 11- 041 5 r 0 �✓ r0`- - Shell International Exploration & Production V Shell International Exploration & Production Company Bellaire Technology Center 3737 Bellaire Blvd Houston, TX 77025 Internet http: / /www.shell com /ep Shell requests revision of the above cited operation to dispose of drill cuttings and minimal attendant water in an on -site cuttings pit. The attached revised site map shows the as -built contours and final facilities layout and the cuttings pit. The small road to the north of the main access road is within the existing right -of -way and does not constitute additional disturbance. The road has been constructed to provide access to the power supply meter. In the original project description, drill cuttings were to be disposed of offsite. At the request of Rio Blanco County to minimize road traffic, and with the verbal permission from the DRMS, Shell requests a change to the original plan to allow disposal of a portion of the drill cuttings on site (see attached figure). The cuttings to be disposed of on site are those comprising strata from ground surface to a depth of 1840 ft, which is top of the L4 water bearing unit. All remaining cuttings and associated brine from the L4 will be transported from the site and disposed of as indicated in the original project description. Reclamation of the cuttings pit will consist of grading to contour and placement of sufficient growth medium to ensure successful revegetation of the site for rangeland post- mining land use. Site grading was completed in December 2011 and an as -built survey was completed shortly thereafter. All necessary stormwater management features were included in the construction stormwater plan and will be modified as necessary to support operations. Buildings labeled "Construction" and "Wells" are temporary buildings to be removed following construction. All other buildings and facilities will be on -site during operations, and are subject to reclamation bonding. The attached figures will be used in future communications related to layout of the East RDD pilot project. Please contact me if you have questions or need additional information. You may reach me at (713)245 -7385. Sincerely, Harry H Posey Senior Production Geologist RECEIVED FEB 2 1 2012 GRAND JUNCTION itELO OFFICE Cc: Travis Marshall, DRMS DIVISION OF Jeff Stevenson, Houston file RECLAMATION MINING & SAFETY Tom Gillis, Denver file