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the proposed industrial use area until it can be established to the Division that formal arrangements have been made for businesses to use this portion of the permit area for industrial use. 15. The amendment application indicates that some roads inside of the proposed amended area and existing permit boundary will remain for access and maintaining the wetland mitigation and banking areas and the CCWCD wells. It does not appear that these roads are depicted on the Reclamation Plan Map and aze not specifically identified in the Reclamation Plan. Please specifically identify which roads will remain after reclamation. 16. The submitted Reclamation Plan indicates that topsoil will be replaced at a rate ranging from 2 to 6 inches in depth. The Division typically approves a minimum of 6 inches of replaced topsoil unless extenuating circumstances prevent applying this thickness. Please commit to replacing 6 inches of topsoil at the site or explain why this thickness cannot be achieved. Rule 6.4.7 Exhibit G -Water Infonnation 17. An internal review by the Division of floodplain issues for the site is being conducted by Allen Sorenson. Results of this review will be sent sepazately. 18. The applicant should be aware that 3.1.6 (1) of the Construction Material Rules and Regulations requires that disturbances to the prevailing hydrologic balance of the affected land and to the surrounding azea 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. In that the proposed operation includes dewatering of the pits, the potential for impacts to groundwater exists. Please indicate how the hydrologic balance of groundwater in and azound the permit site will be monitored. 19. Rule 6.4.7(1) requires the operator to directly state if surface water or groundwater will be affected by the mining operation. The applicant located wells within 600 feet of the affected land. A majority of the identified alluvial groundwater wells are within 300 feet of the mining limit, and will most certainly be impacted by the mining operation. In accordance with Rule 6.4.7(2)(b), the Division requests that the applicant identify and chazacterize the aquifer to be mined in or through. The Division also requests that the applicant define or predict the cone of depression expected for any azeas to be dewatered. The cone of depression and assessment of other effects should define, at a minimum, the horizontal and vertical extent of expected impacts. If during the assessment, the applicant determines that a drawdown effect will occur oflsite that may impact a current groundwater user, the applicant should explain any mitigation measures to be implemented and trigger points that would cause mitigation measures to be put into effect. Rule 6.4.8 Exhibit H -Wildlife Information 20. Section (1) (c) requires the ApplicanUOperator to included the presence and estimated population of threatened or endangered species from either federal or state lists. In that the area and the habitat present on the proposed site may likely be home to federally listed species -specifically Prebles Meadow Jumping Mouse, it is necessary for the Division to receive a letter from the U.S. Fish and Wildlife Service indicating that the mining plan has clearance through them prior to approval of the amendment. Please contact the U.S. Fish and Wildlife Service regarding the proposed mining operation. Rule 6.4.12 Exhibit L -Reclamation Costs 21. The Division will estimate the cost to reclaim the site once the applicant addresses the concerns noted in this letter. The Division will estimate a cost to reclaim the site based on the information submitted in the application and responses to this adequacy review. Rule 6.4.13 Exhibi[ M -List of Other Permits and Licenses Required