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mining and reclamation process, the essential hydrologic functions of the alluvial valley floors <br />(4.24.2(1)). <br />The essential hydrologic functions of the Colorado River alluvial valley floor are those geologic, <br />hydrologic, topographic, and soil characteristics that give the area the ability to support flood <br />irrigated agricultural activities. Subirrigation is a marginal function that is limited to a few of the <br />lower areas which are also capable of flood irrigation. Since no mining activities would take place <br />within the alluvial valley floor, the geologic, topographic, and soil characteristics of the alluvial <br />valley floor would be unaffected. Mining activities are expected to have no effect on the Rapid <br />Creek/Cottonwood Creek hydrologic system. Water quality in the Colorado River stream/alluvial <br />aquifer system may be slightly degraded but the ability to flood irrigate the alluvial valley floors <br />would not be affected. <br />The proposed operation is in compliance with the requirements of this section. <br />RN -6 Findings Document <br />J% <br />