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The access road is a public, county non-maintained road (see engineered evaluation. concerning permanent man- <br />made structures in Exhibit L). Currently, the road averages 10 - 12' in width and is constructed of materials <br />developed during its construction. There is no evidence of any improvements or maintenance of this road in several <br />decades performed by the County. This roadway does not continue through to any other major road systems. <br />Occasionally, perhaps once annually depending on conditions, the operations will employ a road grader to maintain <br />the road. This could only be seen as a drastic improvement over the currently existing condition of the road. Clear <br />Creek County Road and Bridge Department publishes standards and issues permits for how the maintenance is to be <br />done. No new roads are currently forecasted to be constructed. <br />It shall also be noted that storing or parking equipment on public roads is not permitted. <br />6.3.3(1)(h) <br />Water for the operations is obtained from the municipal water supply of the City of Idaho Springs via a "Water Fill <br />Station Usage Permit". It is delivered to the site by hauling in a water truck and is stored in an open, lined reservoir <br />(as described in 6.3.3(l)(e)) for use in operations. Additionally, all process water is reclaimed/recycled by the <br />means of a pontoon mounted pump or sump pump from the impoundment. <br />Water consumed by the operation consists of losses due to evaporation and interstitial water in the porous spaces <br />between the grains of waste (which may be impossible to remove due to capillary pressure). Water consumption is <br />estimated at 2,500-5,200 gallons per day by evaporation and capillary losses (depending on stage of impoundment <br />buildout). Additional water of 100-200 gallons per day may be used for dust control on company traveled roads. <br />As it will be described later, there is the potential for rainwater to become co-mingled with process water in the lined <br />Tailings Impoundment and Water Storage Pond. To compensate for this, Venture Resources will purchase a <br />Temporary Substitution Water Plan contract with the Clear Creek County Water Bank. <br />6.3.3(1)(1) <br />Impacts to groundwater will be controlled by stormwater management, utilizing a composite liner system in the <br />Tailings Impoundment, recycling of leachate to the process stream, utilizing a liner in the Water Holding Pond, and <br />the chemical control of the process water quality as enumerated in 6.3.3(1)(m). <br />A stormwater management plan (SWMP) has been created specifically for this operation and a permit has been <br />applied for with the Colorado Water Quality Control Division. A copy of the SWMP is attached as an appendix to <br />this Exhibit C. <br />Temporary storm water management controls using silt fences and/or straw bales will be used during all phases of <br />excavation. <br />Hydrologic Data <br />Clear Creek is the significant surface water feature within 2 miles of the proposed facility; located 2 ,800' to the <br />south and 1,000' in elevation below the Tailings Impoundment affected area. <br />There are no perched zones or traditionally defined aquifers in this mountainous area. The site is completely <br />composed of crystalline Precambrian rocks, i.e. gneisses and schists, and tertiary intrusive rocks such as quartz <br />monzonites overlain by 0-24" of unconsolidated material. <br />Ground water wells within one mile of site boundary are detailed in a map attached at the end of this Exhibit C, <br />sourced from the Colorado Division of Water Resources. It shall also be noted that the groundwater in this area is <br />unclassified per the Colorado Division of Water Resources and is primarily considered surface water recharge. <br />Unconsolidated materials, soils, of between 0 and 18"-24" overlay the crystalline rocks. The rocks themselves have <br />essentially no porosity or permeability. Random, un-identifiable fractures due to jointing and faulting provide the <br />• only groundwater transmissivity and relative porosity. The site is underlain by numerous mine openings, the most <br />important of which is the workings of the Shafter Mine. The vein of the Shatter Mine outcrops within 100 yards of <br />the proposed disposal area, strikes N 40-60° W and dips 78-80° NW. The Shafter vein (along with the Great <br />Page 5 of 35