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a ~ <br />EXHIBIT G <br />WATER INFORMATION <br />The proposed operation will have temporary impacts on both surface and groundwater in the <br />local area. The mining and reclamation plan is designed to minimize the extent of these impacts. <br />The operator has proposed adequate mitigation t~ address these impacts. <br />Surface Water <br />The mitring operation is adjacent to the Boxelder Ditch as shown on Exhibit C. The operator <br />owns four shazes of this ditch. The proposed mining plan will relocate a 2,450 foot long reach of <br />the ditch azound the east side of the property. The relocation will allow for efficient extraction of <br />gravel and will be done [o maintain hydraulic conveyance ofthe ditch at historic levels. <br />Additional benefits to the ditch would be derived from a reduction of seepage losses in this <br />reach. ~I~tre pruposed plan wi itch Company. Final engineering <br />plans and a letter of approval will be provided to DMG once they are receive . <br />The property is located in the floodplain of the Poudre River. The proposed mining operation <br />will use best management practices during mining to minimize any potential impacts on the <br />floodplain. This will be documented in a floodplain use permit that is issued by Larinrer County <br />as a part of their review. The reclamation plan proposes the construction of at grade lined <br />reservoir storage. This use will have no adverse impact on the floodplain and will potentially <br />offer some temporary storage during floods that would reduce downstream impacts. <br />Appendix G-1 contains data obtained from the State Etgineers office for all known water rights <br />and well permits located in the area. All well permits and decreed wells are numbered and <br />correspond to the locations of wells shown on Figure G-l . The locations for the wells are based <br />on the State Engineers information and are not based on actua field locations. <br />-- ~~ <br />The project lies in the valley fill deposit of the Cache La Poudre River. This is an alluvial <br />aquifer that is unconfined and consists of the sand and gravel that is being mined. The limits of <br />the aquifer correspond roughly to the limits of the floodplain. The depth of the aquifer ranges <br />from approximately 10' to 20' depending on the conformation of the underlying bedrock. It is <br />estimated that bedrock lies between I S' to 25' below the proposed mining site. <br />The underlying bedrock is the Pierre Shale Formation, which is a claystone - siltstone formation <br />that is several hundred fee[ thick. This fotmation is almost totally impermeable. There are no <br />known intrusions into the formation en this property. The upper three fee: is weathered cad h4s <br />some minor fracturing. The unweathered shale is competent as a seepage barrier. The Pierre <br />Shale can be inconsistent in quality for reservoir lining and is usually mixed with clay <br />overburdens in the construction of a lined reservoir. There are some reservoirs [ha[ do no[ use <br />any shale and rely totally on the clay overburden in the area for a liner material. This can work <br />effectively if the material has sufficient foes. The Wellington Downs property [hat lies <br />