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<br />land is 845.24 acres. This amounts to a difference of 14.13 acres. This would also indicate an <br />undisturbed area of 408.29 acres (1,239.4 - 831.11) rather than the 394.16 as stated in the permit. In <br />addition, the lake areas noted on Exhibit F add up to 1,239.22 acres indicating that the entire permit <br />area may be disturbed by the mining operation. Please clarify these discrepancies. <br />/5. On Page 6 of the application, it is stated that the Highlands Lake area can be mined without exposing <br />groundwater. Please indicate to what depth this material will be mined to ensure 2 feet of material <br />overlays the groundwater table at its highest level during the year. <br />4~. The application contains conflicting information regarding the depth of the material to be mined. <br />Please indicate if the pits will be mined to a depth of 45 feet or 60 feet. In addition, please identify <br />the nature of the stratum immediately beneath the material to be mined. <br />7. The applicant states that the shop area will remain when mining ends. Please describe the facilities <br />associated with the shop area and include the structures on the Mine Plan Map. [n order for the <br />Division to approve a mining related structure as part of the postmining land use, the following items <br />must be submitted and approved by the Division; <br />• A description and location of the structure to remain on site and how leaving such structure will <br />achieve the requirements of the postmining land use of recreation and wildlife habitat. <br />• The location of the building must be located on the reclamation plan map. <br />• A letter from Weld County that states the building may be lefr in place and meets the zoning <br />requirements and the approved postmining land use. <br />• A notarized letter from the landowner requesting the building to remain in place to achieve the end <br />Land use. <br />8. The. applicant depicts a Plant Site that will encompass 15 acres. Please describe the facilities that <br />will be located on the plant site. If the Plant Site contains an asphalt batch plant, a concrete batch <br />plant and/or a concrete casting facility it must be clearly stated in the application. The facilities will <br />need to be specified in the permit, located on a map, and include a plan to ensure surface water and <br />groundwater will not impacted. If the applicant intends to move such facilities, it may require a <br />revision to the permit (depending on the new location). In addition, the bond estimate will need to <br />reflect a cost for removing such structures. Please revise the permit accordingly. <br />9. Please specify the dimensions of any existing or proposed road(s) that will be used during the mining <br />operation. Describe any improvements necessary on existing roads and the specifications to be used <br />in construction of new roads. New or improved roads must be included as part of the affected <br />acreage. In addition, please describe any associated drainage and runoff conveyance structures to <br />include sufficient information to evaluate structure sizing. <br />10. The applicant states that it may become practical in the future to line the lake aeeas, making storage <br />reservoirs of some of them. Please be aware that lining the lakes into water storage reservoirs will <br />change the postmining land use, and will require an amendment to the permit. <br />~~l 1. The applicant states that at some point in time it may be necessary to mine the area as a dry pit. The <br />applicant will need to identify those portions (and acreage) of affected land that will be dewatered <br /> <br />