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o£ operations, this water right will be conveyed to HGTI's parent company as <br />augmentation water for other operations. At the time HGTI determines the well <br />is no longer needed to support future operations, the well will be abandoned in <br />accordance with CDWR regulations. These abandonment practices will prevent acid <br />or toxic drainage from entering the shallow groundwater, minimize disturbances <br />to the prevailing hydrologic balance, and ensure public health and safety. <br />Surface Water. Details regarding the Truck Loop Pond and Rail Loop Pond <br />(sedimentation Ponds 1 and 2) are presented in Tab 12, Facilities. Both ponds <br />are designed to prevent additional contribution of suspended sediment to <br />streamflow outside the Loadout facility permit area, and pond designs <br />incorporate sufficient detention times to ensure that all applicable effluent <br />standards will be met. All terms and agreements specified in the facility's <br />CDPS Permit (NO. COG-850008) will be adhered to during the life of the facility. <br />Unless HGTI receives a request from the postmine landowner, both ponds will be <br />removed and reclaimed following the termination of facility operations. <br />A surface water control plan has been developed for the Loadout facility, and is <br />presented as Exhibit 12-2, Surface Water Control Plan Map. Surface water <br />control structures built at the loadout (ditches, culverts, etc.) have been <br />designed to minimize erosion and to prevent additional contributions of <br />suspended sediment to runoff outside of the permit boundary. <br />All structures associated with the surface water control plan will be removed <br />and reclaimed after operations at the loadout are terminated. Topsoil handling <br />procedures (Tab 19) and revegetation methods (Tab 20) that will be used to <br />reclaim the loadout have been developed to prevent erosion and minimize the <br />additional contribution of sediment to runoff. Following procedures outlined in <br />both Tabs will ensure that no acid or toxic materials will be replaced in the <br />rooting zone, and that surface runoff from the reclaimed loadout landscape will <br />not come into contact with materials that would contribute to elevated levels of <br />acid or toxic constituents in the runoff. Plans presented in both Tabs include <br />the reestablishment of topsoil piles, temporary seeding of topsoil piles, <br />disking, mulching, and prompt reseeding of the reclaimed facility landscape. <br />Postmining topographies are planned to approximate the original premining <br />contours (see Tab 18, Backf filling and Grading). Replaced topsoil material <br />TR-07 2 Revised 03/06 <br />