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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 />Water well permit no. 244775. The Cache La Poudre River is approximately 1,200 feet to <br />the south. Please refer to Exhibit C for locations of water courses in close proximity to the <br />site, including wells, springs, stock water ponds, reservoirs and ditches. <br />(b) Identify all known aquifers <br />The Site is underlain by the Cache La Poudre 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: Annual evaporative depletions will be the evaporation <br />from up to 4000 feet of 4 -foot wide de -watering trench. The total area of exposed water is <br />0.5 acres. The gross annual evaporation at the gravel mine is 38.5 inches according to <br />NOAA Technical Report NWS 33, Evaporation Atlas for the Contiguous 48 United States. <br />Monthly evaporative losses are determined using percentages specified by the State <br />Engineer's Office for locations below 6,300 feet. The nearest weather station is in Windsor <br />where the average annual precipitation is 13.97. Effective precipitation, that part of historical <br />precipitation which was consumed by native vegetation on land to be covered by water <br />surface, is conservatively estimated to be 70 percent of the total precipitation. The annual <br />average effective precipitation at the property is estimated to be 9.78 inches. When <br />subtracting the effective precipitation from the gross evaporation yields, the net annual <br />evaporation is 28.72 inches, or 2.39 acre-feet per acre. The annual amount of evaporation <br />from open water surfaces is 1.20 acre-feet. <br />Mining Production & Operations: Bestway Concrete & Aggregates expects to extract a <br />maximum of 500,000 tons annually of aggregate material from the site. The water retained <br />in the 500,000 tons will be replaced pursuant to the Substitute Water Supply Plan (SWSP). <br />The total annual amount of water retained in the gravel product from mining activities totals <br />14.71 acre-feet. <br />Bestway Concrete & Aggregates — La Poudre Amendment- La Poudre Mine — MLRB 112 Permit Application <br />Exhibit G -1 <br />