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12. The hydrology description was updated to include hydrology data collected over <br />the baseline monitoring period on page 2.04 -15. Updated Exhibit L is also <br />provided. <br />13. Registered wells within the coal bed drawdown zone of 6150 feet and the rubble <br />drawdown zone of 1000 ft were tabulated in Exhibit K. Ownerships, uses and <br />reference locations to both the boundary and coal bed were studied for potential <br />impact. The Hydrology Monitoring Plan (Exhibit AB) is based on this <br />information. Permit text on pages 2.04-17 thru 19 was edited to reflect findings. <br />14. A more detailed analysis has been completed regazding the potential for mine <br />induced water level impacts on the registered wells neaz the proposed mine. To <br />complete the more detailed analysis, information was obtained from on-site field <br />investigations, the State Engineer's well record department, monitoring well <br />geologic logs and monitoring data, previous analyses and information pertaining <br />to the hydrologic properties of the Vermejo Formation and coal seams, and <br />information provided by Northfield Partners regarding the mine azea and <br />operations. The results of the study are provided on permit text pages 2.04.-17 <br />thrul9. The additional study is included in Exhibit K. <br />15. Monitoring well completion diagrams and permit documents are provide in <br />Exhibit AJ. <br />16. Mining operations will not introduce contaminants to the ground water system; <br />therefore water quality changes aze not anticipated. The nearby wells including <br />the Chandler Heights wells are located up gradient of the mine and therefore <br />water quality impacts to nearby wells including the Chandler Heights wells is <br />nearly impossible. Because the mine will develop resources from the Ocean <br />Wave coal seam the impacts overall both in terms of quantity and quality will be <br />limited to the mine azea and close proximity to the mined azea. <br />17. Quantification of potential drawdown and impacts to registered wells were <br />studied and included in permit text pages 2.04-17 thrul9. <br />18. Baseline soil survey data was found acceptable. <br />19. Approximately ten (10) inches of topsoil material will be salvaged and stockpiled <br />during site development. Permit text on page 2.04-27, 2.05.3-29 and 2.05.4-6 has <br />been edited to reflect the change in soil recovery depth. <br />20. The soil survey map (Map 2) has been modified to a scale of one inch = 500 feet. <br />21. The temporary seed mix for soil stockpiles was proposed by Kent Crofts of IME <br />Consulting. Mr. Crofts proposal was based on experience with reclamation of the <br />Southfield/Energy Fuels Coal Inc. site south of Florence, Colorado, including the <br />railroad loadout location directly east of the proposed Northfield surface facility <br />site. Proposed temporary seed mixture is included on permit page 2.05.4-10. <br />22. Approximately ten (10) inches of topsoil material will be salvaged as stated in the <br />response to response no. 19, above. Topsoil salvage will include recovery and <br />stockpiling a mix of A and B horizon soils. Permit text on pages 2.04-26, 2.05.3- <br />29, and 2.05.4-6 has been edited to reflect the change in soil recovery depth <br />23. All stockpiled soil materials will be surveyed following completion of stockpile <br />construction. Permit text on page 2.05.4-6 was edited to include surveying <br />stockpiles, reporting the survey information to the Division, and including the <br />survey data in the permit application. <br />402 Valley Rd, Suite G, Canon City, CO 81212 %~ 81212 <br />asnan.net <br />Phone: 719-275-8951 • Cell: 719-429-8950 <br />