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6. Rule 3.19(4) requires the Operator to rehandle stockpiled topsoil as little as possible until replacement on the regraded, disturbed area. Relocations of topsoil stockpiles on the affected land require Board or Office approval. Please depict the location(s) of the topsoil stockpile(s) on the map so that the Division may monitor handling of the topsoil during the operation. Rule 6.4.4 Exhibit D- Minim Plan Section (a) of the Mining Plan requires the Operator/Applicant to supply a description of the method(s) of mining to be etnployed in each stage of the operation as related to any surface disturbance on affected lands. The applicant states that this operation will excavate down to approximately 10 feet and will not expose groundwater. A nearby pit operated by Park County does contain exposed groundwater and the exposed groundwater appears to be less than ] 0 feet below the ground surface. Please identify the depth to water at the site and be aware that in order not to expose groundwater, the operator must remain at least two feat above the existing depth to water at the site. (If ground water is exposed, the Office of the State Engineer will need to be contacted to address water rights issues. If the Operator decides to dewater the operation, the Water Quality Control Division should be contacted for possible discharge permits. Additionally, any such changes to the mining plan would require a revision to the permit) 8. Section (a) (d) of the Mining Plan requires the Operator/Applicant to describe the size of area(s) to be worked at any one time. The application states that the Operator will limit the mining disturbance to ten acres. Please be aware that inclusion of this statement limits the mining disturbance in the permit to no more than ten acres at any given time. The submitted map indicates that two of the phases exceed ten acres. If the ten-acre Limit is not suitable for the Operator, please specify if more than ten acres of mining disturbance will occur at the site at anytime during the life of the permit. 9. Section (f) of the Mining Plan requires the Operator/Applicant to present (i) the nature, depth and thickness of the deposit to be mined and the thickness and type of overburden to be removed, and (ii) the nature of the stratum immediately beneath the material to be mined in sedimentary deposits. Please supply this information. Rule 6.4.7 Exhibit G-Water Information 10. Rule 3.1.6 (1) states that disturbances to the prevailing hydrologic balance of the affected land and of the sttrrounding area and to the quantity and quality of water in surface and groundwater systems both during and after the mining operation and during reclamation shall be minimized. The applicant states that a processing plant and concrete plant will be located on a portion of site. Please describe how the facilities will be managed to ensure that impacts to groundwater and surface water quantity and quality will be minimized. 11. Also with regard to Rule 3.1.6 (1), the site of proposed mining is located near the Middle Fork of the South Platte River. Some or all of the activity proposed in this application may be located within the river's floodplain. Please supply data that will identify whether mining activity at the site falls within the floodplain of the river. If the operation does fall within the floodplain of the river, please address potential impacts to immediately upstream and downstream properties resulting from a 100 year flood event, i.e. will the mining activities increase the potential to offsite impacts during a flood? If so, how will such impacts be minimized and/or mitigated? 12. Section (3) of Water Information requires the Applicant/Operator to provide an estimate of the project water requirements including flow rates and atmual volumes for development, mining and reclamation phases of the project. Please supply the above information.