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Please contact me if you have any questions. <br />Thanks, <br />Dan <br />Daniell. Hernandez <br />Daniel I. Hernandez <br />Senior Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Safety <br />1313 Sherman St, Room 215 <br />Denver, CO 80203 <br />New Phone Number: 303-866-3567 ext 8126 <br />Fax: 303-832-8106 <br />Website: www.mining.state.co.us <br />From: Welt, Kathy [mailto:KWelt@archcoal.com] <br />Sent: Tuesday, May 19, 2009 5:01 PM <br />To: Hernandez, Daniel <br />Cc: Nolte, Doug; Nyikos, Chris; Sweetwood, Ryan; Paul T. Swenson <br />Subject: RE: MR-354 Questions <br />Below are the responses to your questions. Sorry for the lateness of my reply - they're rebuilding a <br />wall in my office and it's mess here! <br />xathy -welt, <br />Environmental Engineer III <br />Mountain Coal Company, LLC <br />West Elk Mine <br />P.O. Box 591 <br />Somerset, CO 81434 <br />Phone (970) 929-2238 <br />Cell (970) 433-1022 <br />Fax (970) 929-5050 <br />From: Hernandez, Daniel [mailto:Daniel.Hernandez@state.co.us] <br />Sent: Tuesday, May 19, 2009 9:49 AM <br />To: Welt, Kathy <br />Subject: MR-354 Questions <br />Hi Kathy - <br />Regarding the boreholes/piezometers/inclinometers proposed under MR-354: <br />• Does MCC intend on submitting the data collected from these piezometers/inclinometers to <br />DRMS? <br />Yes, the initial monitoring data will be used in the design of the East Refuse Pile Expansion <br />(ERPE), so that data will be a part of the TR application. A monitoring program will be proposed by <br />the design engineers in that TR application and will include a plan for submitting subsequent data. <br />• How long does MCC intend on monitoring these piezometers/inclinometers before they will be <br />sealed for final reclamation?