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EXHIBIT G -WATER INFORMATION <br /> This information provided in this Exhibit is intended to satisfy the requirements outlined in Section <br /> 6.4.7 of the Colorado Mined Land Reclamation Board Construction Material Rules and <br /> Regulations: <br /> (a) Locate on the map(Exhibit C)tributary water courses, wells, springs, stock water <br /> ponds, reservoirs and ditches <br /> The Big Thompson River is less than 100 feet to the northeast. Please refer to Exhibit C for <br /> locations of water courses, ditches and well permit in close proximity to the site, including <br /> wells, springs, stock water ponds, reservoirs and ditches. <br /> (b) Identify all known aquifers <br /> The Site is underlain by the Big Thompson River alluvial aquifer. <br /> (c) Show how water from dewatering operations or runoff from disturbed areas,piled <br /> material and operating surfaces will be managed to protect against pollution of either <br /> surface or groundwater both during and after the operation. <br /> Please refer to the Mining Plan Map in Exhibit C of this application. Mine areas will drain <br /> internally. Uncontrolled releases of surface water in disturbed areas will not occur. <br /> Stormwater collected in the active mine area will be managed through the dewatering <br /> system. <br /> (d) Estimate project water requirements including flow rates and annual volumes for the <br /> development, mining and reclamation phases of the project. <br /> Projected Use And Consumption: Groundwater will fill settling ponds, which in turn will be <br /> used for washing aggregate and dust control. Evaporation will be available from <br /> approximately 4.5 acres of exposed water surface contained within the settling ponds and <br /> dewatering trenches. <br /> The gross annual evaporation at the Bernhardt Mine is approximately 44 inches according to <br /> NOAA Technical Report NWS 33, Evaporation Atlas for the Contiguous 48 United States, <br /> Map 3. Monthly evaporative losses are determined using percentages specified by the State <br /> Engineer's Office for locations below 6,500 feet, <br /> Precipitation and temperature data was obtained from the Longmont weather station, <br /> (http://ccc.atmos.colostate.edu). The average precipitation at the Longmont station is 13.27 <br /> inches per year. Effective precipitation is that part of the historical precipitation which was <br /> consumed by vegetation and crops on the land to be covered by a water surface and is <br /> estimated to be 70 percent of the total precipitation. Subtracting the effective precipitation <br /> from the gross evaporation yields an annual net evaporation of 34.57 inches, or 13.82 acre- <br /> feet per year for the 4.5 acres of water surface. This includes the fresh water pond in the <br /> northwest part of the site and some minor dewatering trenches and sump areas in Pond 4. <br /> Bestway is completing mining in Pond 3 and plans to move into Pond 4. A provisional leak <br /> test has been approved on Pond 4 in August of 2018. Therefore aggregate production does <br /> Bestway Concrete&Aggregates—Conveyor Amendment-Bernhardt Mine—MLRB 112 Permit Application <br /> Exhibit G-1 <br />