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S~' EXHIBIT G WATER INFORMATION The Riverbend Operation is located in Weld County along the South Platte River approximately three miles downstream of Brighton, Colorado. Highway 85 lies along the east boundary of the site while W.C.R. 8 & 6 from the north and south boundaries of the property, respectively. The proposed mining operation will have minor impacts the South Platte River from depletions due to evaporation and operational losses. The impacts can be mitigated without injury to senior water rights. Exhibit Cincludes apre-mining plan that shows water resources on the property. The South Platte River passes through the Riverbend Operation. No active irrigation ditches occur on the property. One imgation well is located on the property. The mining of the Riverbend Operation will be completed in five phases and last approximately 10 yeazs. As the material is removed, reclamation will follow with the construction of the reservoir liner proceeding immediately behind. In [he long term, the reclamation of the mine will create two lined lakes with an approximate area of 113 acres. Lafarge also owns water rights in the Fulton Ditch Company in [he South Platte Basin. These water rights can be used to fill the lined reservoirs created after reclamation. The available water rights aze summarized in the following table: Ditch Company Number of Shares Owned by Lafarge Acre-feet per Shaze Fulton Irrigation Ditch Co. 25 1.75 The site will be dry mined, and groundwater will only be exposed in the dewatering trench, the collection area, and the wash pond. Prior to mining, a dewatering trench will be excavated azound the perimeter of the mining cells. Groundwater will flow along [he trench by gravity towazd a collection basin where it will be allowed to settle out prior to pumping into the South Platte River. The property is located in the floodway of the South Platte River. All work in the floodplain will use best management practices and conform to the Weld County Flood Hazard Regulations. This will be documented in a Flood Hazard Development Permit. During the mining operation, overburden and topsoil strippings will be placed directly on side slopes to backfill to the proper slope configuration. Erosion caused by runoff from these stockpiles will be directed into the pit, and will flow into the dewatering trench before reaching the collection azea and being pumped into the South Platte River. The project lies in the valley fill deposit of the South Platte River. This is an unconfined alluvial aquifer and consists of the sand and gravel that is being mined. The limits of the aquifer correspond roughly to the limits of the floodplain. The depth to groundwater ranges from approximately 4' to 5' depending on the formation of the underlying bedrock. G-1