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of compiaints regarding most mining projects. More recently, however, concerns were expressed during review of the Rebel Ranch proposal. Furthermore, as the county grows, the amount of fill needed will probably increase, and the number of residences around existing or future mining operations will probably increase. These events will create more potential land use conflicts. In terms of land use, agricultural areas are appropriate for mining operations, since the large, undeveloped sites required for mines are generally located in the agricultural areas and since fewer people are impacted due to the low density and greater open spaces in agricultural areas. Agricultural areas, however, contain single family residences that need protection from the adverse impacts of mining operations. In staff's opinion, such impacts are addressed by specific criteria contained in the existing LDRs. Further mitigation of impacts can be accomplished by more regulations and restrictions that address specific areas of concern. Staff has identified some possible changes to increase restrictions to address specific areas of concern. Public input from the workshop may also present information or alternatives that address these same concerns. In considering its mining policies and regulations, the Board has flexibility to work within a broad range of possible restrictions and conditions. The policies chosen should balance the concerns of surrounding residents with the ability of mine operators to run efficient operations in terms of on-site activity and hauling. RECOMMENDATION: Staff recommends that, after receiving public input, the Board of County Commissioners provide direction to staff regarding any necessary LDR changes. Community Development Director Bob Keating gave a brief recap of the history of the land use regulations (LDRs) pertaining to sand mining, pointing out on a map the location of the active sand mining operations in the county. During the discussions on the LDR amendment hearings held in May, the Board directed staff to set up a workshop to address various mining issues. With respect to separation distance, we now have a 300 -ft. minimum separation distance from a pit, stockpile, or on-site haul road to an adjacent occupied dwelling unit. We also have the minimum 150 -ft. setback from the pit to the property line. Planning Director Stan Boling reviewed the specific issues to be considered in the Board's deliberations today. Because more and more single family residences are being built in the agricultural area, the following items need to be considered to determine the appropriate locations for sand mining operations: 11 SEPTEMBER 21 1995 BOOK 6 phu a 0