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2010-03-05_REVISION - C2006085
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2010-03-05_REVISION - C2006085
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Entry Properties
Last modified
8/24/2016 4:00:48 PM
Creation date
3/8/2010 7:55:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C2006085
IBM Index Class Name
REVISION
Doc Date
3/5/2010
Doc Name
Adequacy Review
From
Environmental Alternatives, Inc
To
DRMS
Type & Sequence
TR1
Email Name
KAG
Media Type
D
Archive
No
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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />March 5, 2010 <br />Angela Bellantoni <br />Environmental Alternatives, Inc. <br />1107 Main Street <br />Canon City CO 81212 <br />Re: Adequacy Review, TR-1 Facility Locations changes <br />Northfield Mine, Permit No. C-2006-085 <br />Dear Ms. Bellantoni: <br />COLORADO <br />D I V I S ION OF <br />RECLAMATION <br />MINING <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />James B. Martin <br />Executive Director <br />The Division of Reclamation, Mining, and Safety (Division) has completed the adequacy review of <br />materials received for Technical Revision No. 1 (TR-01) to the Northfield Mine permit application. <br />This revision proposes changes to the location of the facility area and adds a return air ventilation <br />shaft. <br />1. The Division is in the process of updating the cost estimate with any new costs associated <br />with this revision and current unit costs for all tasks required to reclaim the site in <br />accordance with the approved reclamation plan. This would have been necessary prior to <br />Northfield submitting a bond in the future so from a timing perspective, this is an <br />appropriate opportunity to get that done. The Division would also like the approved <br />estimate to be included as an exhibit to the permit application. Please submit a new <br />exhibit table of contents page and update permit page 3.0-1 with the necessary permit <br />text identifying the location of the cost estimate. <br />2. Map7, Mine Plan does not show the location of the cliffs as previously shown on the <br />approved version. Also, the map does not include any date reference for the changes that <br />were made. Please review and re-submit as appropriate. <br />3. Page 2.05.3-19 states "Northfield is in the process of obtaining core samples to provide <br />geochemical data on the roof, floor, interburden, and coal for the Ocean Wave seam. No <br />toxic or acid-forming materials are anticipated..." This text appears to be a remnant of the <br />original permit submittal. Unless the Division is mistaken, geochemical data is included in <br />the Northfield permit in Exhibits O, AG, and Al. Please modify the permit text on this <br />page to reflect the currently approved permit application. <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines
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