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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 Q tributary water courses, wells, springs, stock water <br />ponds, reservoirs and ditches <br />The Rural Ditch, Last Chance Irrigation Ditch, Cole Ditch Lateral, McCormick Ditch, and the <br />Godding Hollow Ditch flows through the site. The Saint Vrain River is approximately 2,500 <br />feet to the north. Please refer to Exhibit C for locations of water courses in close proximity to <br />the site, including wells, springs, stock water ponds, reservoirs and ditches. We have <br />requested updated information from the State Engineer's Office. <br />(b) Identify all known aquifers <br />The Site is underlain by the St. Wain 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 5000 feet of 4 -foot wide de- watering trench, located inside of the slung wall. The <br />total area of exposed water is 0.5 acres. The gross annual evaporation at the the Shores <br />aggregate mine is 42 inches according to NOAA Technical Report NWS 33, Evaporation <br />Atlas for the Contiguous 48 United States. Monthly evaporative losses are determined using <br />percentages specified by the State Engineer's Office for locations below 6,300 feet. The <br />nearest weather station is in Longmont where the average annual precipitation is 15.08. <br />Effective precipitation, that part of historical precipitation which was consumed by native <br />vegetation on land to be covered by water surface, is conservatively estimated to be 70 <br />percent of the total precipitation. The annual average effective precipitation at the property is <br />estimated to be 10.56 inches. When subtracting the effective precipitation from the gross <br />evaporation yields, the net annual evaporation is 32.13 inches, or 2.68 acre -feet per acre. <br />The annual amount of evaporation from open water surfaces is 1.34 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 />Bestway Concrete & Aggregates —The Shores -Burch Property — MLRB 112 Permit Application <br />Exhibit G -1 <br />