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• • III IIIIIIIIIIIIIIII DIVISION OF MINERALS AND GEOLOGY Department o(Nalural Resources 1313 Sherman 51., Room 215 Denver, CO 80203 Phone: 1303)866-3567 FAX:1303)832-8106 November 16, 1993 STATE OF COLORADO pF Cpl .e~ ~ /e T6 ~ Mr. Mark L. Orbeck Graef Anhalt Schloemer and Associates 102 East Pikes Peak Ave, Suite 305 Colorado Springs, CO 80903 RE: Dellacroce Pit, File No. M93-050 Dear Mr. Orbeck, Roy Romer Governor Michael B. Long Division Director ~n~v~~ . V lam" I have been further reviewing the application materials for this permit, and am finding that most of the required items are adequately addressed. However, there are still a few things that will need to be clarified, as explained below. / 1) Any surface operations affecting lands previously undisturbed „ must have a cultural resource survey performed, or must obtain ~~, clearance for other mitigating activities, through the State Historic Preservation Officer (SHPO). If you have questions, contact Mr. Jim Green at the Colorado Historical Society, 303/866- 4674. No mining can begin until .the Division receives proof of such clearance from SHPO. 2) In Exhibit N, the list of permits and licenses to be applied for by the applicant should also include the NPDES (for discharge of water) and a Storm Water Management Plan (SWMP), both of which are obtained through the Colorado Department of Health/Water Quality Control Division (WQCD). Based on information contained in the application, the Division feels that stormwater runoff will be an especially important item to plan for. This would be for both the permit area and any offsite damage, too. Additionally, the / applicant should consider groundwater quality and impacts such as / accidental spills of fuel, oil and antifreeze, depth to / groundwater, geologic permeability, etc. However, if the applicant ~' U feels that surface runoff or groundwater will not be negatively ~ impacted, statements to that effect should be included. Inquiries ~ may be directed to Ms. Pat Nelson at WQCD, 303/692-3590. The Division encourages you to make this contact, to see if either permit is required for your operation. 3) The reclamation detailed in Exhibit E mentions the stockpiling / of topsoil/subsoil. Please provide the locations and quantities on / a site plan for each phase. Push distances are essential for our calculation of reclamation costs, and determination of plan b~. compliance during mining.