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~ iii iiiiuiiiiiu iii STATE ~` COLUl~ADO DIVISION OF MINERALS AND GEOLOGY Depanmenl of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: 1303) 866-3567 FAX: (303)872-8106 April 5, 2000 Kenny D. Smith Colorado Gravel Products Inc. 45247 Hwy. 1 l2 Center CO 81125 Re: Colorado Gravel Products Pit, File M-1999-117 Dear Mr. Smith, - . ~; ~; ~ s~ ~ Qr~°B~ yy or. `.'yC ry~..iCB i...'~F ~~C-' 7 Yi ~r.. /wl. / ' f' ~, dP~~~~~ - u,,, v~ . q'°R ~~~~~F® Second Adequacy Review~L~._ r 2QQQ ~GP~~Y D I V I S I O N O F MINERALS GEOLOGY RECLAMATION MINING•SAFE TY Bilt Owens Governor Greg E. watcher Eaecuove Director hlichael B. Long Division Director I have reviewed the revised exhibit materials and maps you sent in response to my preliminary adequacy review letter. Most of the submitted materials appear to address the questions I had expressed in that letter. I have the following comments about some of the specific items in your recent submittal, which are included herein either so dlat 1 may clarify a statement of yours or to raise a question which still remains about that item. If no further response is requested from you for a specific item, it is considered to be adequate at this time. These are labelled and arranged in order of the application item or exhibit to which they pertain. Application Item 3 -Permitted Acreage You have clarified the proposed acreage elsewhere (under Exhibit A) in your recent submittal as 77.65 total permitted acreage, and 74.30 total affected acreage. Though you did not specifically modify this application item, the "clarified" acreage will be the figure to be used for this permit, and this application item is considered to be adequate now. (Please note that, due to the various differing acreages initially included in your application, one of which figures being 77.65, this "clarified" permitted acreage is not considered a "change." A changed acreage would entail an amendment to the application, requiring further published notices and a resetting of the decision date. We do not consider this case to constitute an amendment.) Exhibit A -Legal Description As mentioned above, we accept the acreage figures you provided under this exhibit, and consider them to be a clarification, not a change. Exhibit C -Pre-mining and Mining Plan Maps Thank you for the improved maps, which now include the necessary depictions of structures, mining direction and other features. Exhibit D -Mining Plan The plan states that the phases, as numbered, do not necessarily denote the sequence of mining. Please note however, that if you actually move the active excavation to anon-adjacent area, your total disturbance may begin to exceed what you are bonded for. I have no problem approving a plan for excavating non-sequential phases, but unless you wish [o bond for reclaiming the entire site, I will need a commitment to limit total disturbance [o a specific acreage, highwall length and gradient, etc. Your statement of concurrent reclamation, performed whenever possible, will help keep the total bond lower.