2019-05-24_PERMIT FILE - M2019028 (11)

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EXHIBIT G Water Information Introduction The DPG Mining site is located in the north 1/2 of section 12, and the southwest % of northeast corner of section 11, township 5 north, range 65 west of the 6th p.m., and the south 1/2 section of section 1, township 5 north, range 65 west of the 6th p.m., Weld County, Colorado. The proposed mining site is located approximately 2 miles north and 2 miles west of the Town of Kersey, and approximately 2 miles north of State Highway 34. The South Platte River is approximately 600 feet south of the site on the west side of the permit boundary and 200 feet south and east of the site on the east side of the permit boundary. The Cache La Poudre River is adjacent to the north side of the permit boundary. The Weld County Parkway is immediately adjacent to the west side of the permit boundary. The operation will consist of sand and gravel production and will impact the South Platte River and the Cache La Poudre River in the form of depletions due to evaporation and operational losses associated with mining. Mining of the DPG Mining site will last for approximately 30 years. Once reclamation is complete reservoirs will be created with a total surface area of Reservoir 1 being 44.17 acres, Reservoir 2 51.40 acres, Reservoir 3 41.60 acres, and Reservoir 4 42.63 acres. The depth to groundwater ranges from 3 to 10 feet within the permit boundary (measured in MW-1 through MW-9, See the attached piezometer measurements table). The site will be mined down to a depth of 67 to 102 feet thus exposing groundwater to the atmosphere. This exposed groundwater, along with the operational losses associated with the extraction of sand and gravel deposits, will impact the South Platte and Cache La Poudre alluvial aquifer. These impacts will cause river depletions that must be augmented. Groundwater will be exposed during the mining once the mining depths reach an elevation of approximately 4596. To enable dry mining at the DPG Mining site, there will be dewatering trenches around the various phases of the site. These dewatering trenches will change in length throughout mining. The maximum length will occur when one phase is completely mined, but before the reclamation has begun on any given phase. The maximum size of dewatering trench will be 2,300 feet long and 5 feet wide, or 0.26 acres of exposed surface area. This water will be collected in a series of settling ponds totaling 8.5 acres. After sediment has settled from the water it will be pumped into dewatering ditch, which traverses the site, and is discharged into the Cache La Poudre River. As mining progresses, the dewatering trenches and discharge settling pond will shift as various cells are reclaimed. The gravel pit will have a slurry wall liner being constructed as mining commences or prior to mining commencing in Phase 1. Water Requirements Water use at the DPG Mining site will include evaporation from exposed groundwater, dust control of haul roads and stockpiles, and water retained in material removed from the site. UT Consulting, Journey Ventures,LLC g+Inc. Journey Ventures Pit DRMS 112 Permit Apphcation