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0 Transit Mix Concrete Co. <br /> Transit Mix has consulted with the State Engineer's office regarding permitting and mitigation <br /> measures to ensure that any impacts to ground water or the prevailing hydrology at the site will <br /> be fully remedied or, if necessary, that any de minimis depletions of groundwater are replaced. <br /> A request for a Groundwater Well Permit, and, if necessary, Substitute Water Supply Plan has <br /> been submitted to the State Engineer's office, even though no depletions associated with mining <br /> at the Quarry are projected. <br /> Transit Mix will operate the Quarry in a way such that any ground water encountered during <br /> mining will be allowed to drain or will be delivered to either Little Turkey Creek or the ground <br /> water system within the mine permit area. Transit Mix will control any ground water encountered <br /> while mining in a manner which prevents depletion and evaporation. All consumptive water uses <br /> at the Quarry, such as dust suppression and material washing, will be supplied exclusively with <br /> water trucked into the site from an off-site legal source. <br /> Conclusion <br /> Transit Mix has designed the Quarry to minimize impacts to the hydrologic balance, and this <br /> includes both the surface water and groundwater systems. Primarily, there are approximately <br /> 5.9 square miles of watershed upstream from the Quarry area which will remain unaffected. <br /> Similarly, all development will occur south of Little Turkey Creek. Surface water flows from these <br /> areas will not be affected in any manner by Quarry development. No runoff waters will be <br /> captured and used by the Quarry operations, and all these waters will be conveyed to <br /> downstream users. Runoff from disturbed areas will be temporarily detained in detention basins <br /> to remove sediment before the waters are discharged to Little Turkey Creek. The sediment <br /> basins have orifice plates to restrict outlet flows thus maintaining peak flows in Little Turkey Creek <br /> at rates similar to those which currently occur. <br /> Impacts to the groundwater system are limited and localized and will be minimized by mine <br /> planning and operational procedures. As excavation will remain at least 10 feet above the level <br /> of the adjacent Little Turkey Creek, localized drawdown from Quarry development will remain <br /> above the creek elevation, and there will be no impacts to groundwater north of Little Turkey <br /> Creek or east of the project area. Intercepted groundwater south of Little Turkey Creek will cause <br /> drawdown of potentiometric levels in the fractured granodiorite; however, the very low bulk <br /> transmissive capacity of the fractured rocks limits the extent of the drawdown to the Quarry area <br /> and a small area west of the Ranch property. <br /> An evaluation of potential drawdown impacts from the quarrying operation is described in more <br /> detail in Exhibit G-2. This evaluation indicates that a drawdown of between 1 and 5 feet might <br /> occur, at maximum development of the Quarry, at three domestic wells located within a half-mile <br /> west of the Ranch property along the south side of Little Turkey Creek. This minimal drawdown <br /> will likely have a negligible impact on the productivity of these domestic supply wells. One other <br /> well location, Permit#34643, is suspected of being incorrectly recorded with the State Engineer <br /> Hitch Rack Ranch Quarry Permit Application <br /> October 3,2017 G-38 <br />