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EXHIBIT G Water Information The proposed mining operation is located in the Section 32 and Section 33, Township 6 North, Range 66 West in Weld County. The site is located between 71~` Avenue and 83`d Avenue south of O Street in the northwest portion of Greeley. The operation will impact the Cache La Poudre River in the form of depletions due to evaporation and operational losses associated with mining. These impacts, however, are of minor consequence and can be mitigated without injury to the vested senior rights downstream of the site. The operation will consist of sand and gravel production. The project will create seven open gravel pit lakes with approximately 265 acres of exposed surface at reclamation. The reclamation plan will leave six lined lakes and one unlined lake that will be hydraulically connected to the alluvial aquifer. A substitute supply plan for the replacement of stream depletions during the mining phase will be submitted to the State Engineer's Office. The operator will obtain an approved augmentation plan through Colorado Water Court after mining is completed. The length for the completion of the project is estimated at 25 yeazs. Water Use Water use at the site will include evaporation from the wash pond, settling pond and dewatering trenches, water retained in material removed from the site and dust control of haul roads and stockpiles. The exposed groundwater associated with the dewatering trenches is estimated at 1.0 acre. The total exposed acreage during mining will be approximately 5 acres. Mining at the site will intercept the groundwater table. In order to enable dry mining, dewatering trenches will be constructed around the perimeter of the pit. This water will be routed and pumped back to the Cache La Poudre River. The NOAA Technical Report NWS 33, Evaporation Atlas for the Contiguous 48 United States (U.S. Department of Commerce) was used to determine gross evaporation. For this location, the annual evaporation is 45.0 inches. Monthly evaporation percentages as suggested by the Office of the State Engineer were used to calculate monthly evaporation. Precipitation was estimated using the Colorado Climate Center's Monthly Climatic Data for the Windsor Weather Station. Annual precipitation at the site was assumed to be equal to the Windsor station, which is 12.54 inches. Effective precipitation was calculated as 70% of total precipitation. Net evaporation was then computed as the difference between gross evaporation and effective precipitation. The net annual evaporation at the site is 3.02 feet. Thus, the resulting net annual evaporative consumptive use during mining operations is 15.1 acre-feet. The evaporation associated with the post reclamation lakes will be approximately 800 acre-feet per year. The post mining augmentation requirements can be seen in Table No. 1. River Yiew Resource, CAA>AS Colarnrlo, Inc. DMG ! l 1 Perrni~ Prtge l l