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Stark, Jim <br />From: Stark, Jim <br />Sent: 07 January, 2010 11:41 <br />To: Talvitie, Marcia <br />Cc: Brown, Sandy; Boulay, Mike <br />Subject: RE: Oxbow TR-65 RCE <br />Attachments: Oxbow TR-65 RCE.pdf <br />Marcia, <br />I have attached the revised cost estimate for the Oxbow TR-65 - 33 gob vent boreholes, 27 drill pads and the associated <br />light-use roads. The increase in liability is $465,563.00. While this is a large amount, the average hole depth is 2,400 <br />feet and there is a total depth of 79,181 feet, so there is a lot of work to be done to seal each hole. <br />Please note that this estimate includes all of the gob vent boreholes proposed, including those in the inventoried <br />roadless area. If Oxbow decides to remove the GVB's in the roadless area I can recalculate the estimate. I have placed a <br />copy of the estimate in for scanning and I will have Alysha send complete copies to both you and Mike, as I am not sure <br />when you are doing the file and loop switch. Please let me know if you have any questions regarding this estimate or if <br />you need any additional information. <br />James R. Stark <br />Environmental Protection Specialist <br />Colorado Department of Natural Resources <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />303-866-3567 X8145 <br />www.mining.state.co.us