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f30 feet or a minimum of 2 feet above ground water; whichever is less. Mining will take place in three separate pits totaling 68.2 acres. The haul road is designed to serve all three pits and accesses onto Redvale Road at a point approximately 2,200 feet east of Hwy 145. The mining operation includes activities ancillary to the mining of gravel such as stockpiling, crushing, screening, and trucking. It is estimated that the life of the gravel mine will be 20 to 34 years and that the disturbed portions of the property will be reclaimed as pasture and rangeland as the mining progresses. The mine operator. Williams Construction Contractors is reguestinn that the Special Use be amended to include (1) an asphalt batch plant (2) a concrete batch plant (3) aggregate washing, and (4) extended hours of operation for Saturdays from 7:00 a. m. to 5:00 p. m. The application materials only address the new proposed uses. No attempt has been made to address the criteria listed in ,¢ IV. B. of the County Zoning Resolution for review of a special use request. Accordingly, it must be assumed that all the provisions and conditions pertaining to the approved Angie Pit Special Use will continue in effect; except as they may be n:odif:ed by any of the four specific amendment requests that are approved 1. As concerns the reauest for an Asphalt Batch Plant, four residences are located within 132D feet of the mine boundary and an uncounted number of additional residences are Zocated within 2640 feet of the mine boundary. Therefore, pursuant to the Gravel Mining Mitigation Standards (,¢ V. C 4. c., M.CZR.), an asphalt batch plant may be operated between the hours of 7:00 .. m. and 6:00 p. m., Monday through Saturday. Accordingly, the proposed addition of an asphalt batch plant appears to be consistent with the intent of the County's Gravel Mining Mitigation Standards. ..Both County and State (CDPHE) regulations specify that the operation of an asphalt batch plant must be in conformance with the Colorado Air Quality Control Commission Regulation No. 1, as it applies to the regulation of fugitive particulate emissions and the measurement of opacity and off-property transport of fugitive particulate emissions. A condition subsequent has been provided to address this item. 2. As concerns the request for a Concrete Batch Plant, the Gravel Mining Mitigation Standards are silent on the issue of a concrete batch plant. However, since the operating characteristics are similar to an asphalt batch plant, it may be appropriate to apply similar standards. Accordingly, the proposed addition of a concrete batch plant appears to be consistent with the intent of the County :s Gravel Mining Mitigation Standards. State regulation (CDPHE) specifies that the operation of an asphalt batch plant must be in conformance with the Colorado Air Quality Control Commission Regulation No. 1, as it applies to the regulation of fugitive particulate emissions and the measurement of opacity and off-property transport of fugitive particulate emissions. A condition subsequent has been provided to address this item. 2