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v <br /> 000 <br /> General Shale <br /> Building The American Dream, <br /> December 14, 2017 ��� <br /> Colorado Department of Natural Resources DEC 2 82017 <br /> Division of Reclamation,Mining and Safety DIWSION OF REC <br /> 1313 Sherman Street, Room 215 MINING FaTTION <br /> Denver, Colorado 80203 AND SAFE+ <br /> Attention: Mr. Michael A. Cunningham <br /> Subject: Corrective Action Technical Revision <br /> Chieftain South Mine, Permit No. M-1981-148 <br /> Dear Mr. Cunningham: <br /> General Shale Brick, Inc. (General Shale) is respectfully submitting a technical revision for <br /> changes to the following in the permit: <br /> 1. Exhibit C Affected Lands Map <br /> a. Updated map to reflect changes in land ownership. <br /> 2. Exhibit D Mine Plan Map <br /> a. Updated section to reflect non-mine stormwater ditch from Green Mountain to <br /> convey stormwater to the historic drainage exit point in the southwest corner of the <br /> permit. The ditch will be constructed by 2018. <br /> b. Changed the staging of mining. <br /> c. Changed the location of the topsoil,overburden, and interburden stockpiles. <br /> 3. Exhibit D Mine Plan pages 10-13 <br /> a. Updated section to reflect changes in seeding period. <br /> b. Removed noxious weed sweetclover from the seed mixes. <br /> c. Changed the staging of mining and mining timetable. <br /> d. Changed the location of the topsoil, overburden, and interburden stockpiles. <br /> e. Updated section on fugitive dust. <br /> 4. Exhibit E Reclamation Plan all pages <br /> a. Updated section to reflect changes in seeding period. <br /> b. Noted that final pit design will drain into the historic drainage. <br /> c. Changes in reclamation from concurrent to reclamation at end of mining. <br /> d. Changed the reclamation timetable. <br /> e. Removed noxious weed sweetclover from the seed mixes. <br /> 5. Exhibit F Reclamation Plan Map <br /> a. Updated section to reflect stormwater ditch that will be constructed by 2018. <br /> b. Contours that illustrate final pit design will drain into the historic drainage. <br /> 6. Exhibit G Water Information all pages <br /> a. Updated section to reflect well permit that was acquired from the SEO <br /> b. CDPHE discharge permit to dewater mine <br />