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are infrared and show <br />• in vegetative growth <br />Goodspring Creek show <br />floor. <br />the late summer and fall season differences <br />between upland and valley floor areas. <br />s some evidence of being an alluvial valley <br />Effects on Essential Hvdroloaic Functions <br />Based on information accumulated, the effects of mining on any <br />alluvial valley floor which exist in the general area would be <br />minimal. Because of the undefined perched existences and limited <br />amounts of groundwater in the area to be mined, the planned mining <br />will not directly impact any alluvial valley floor. Any water <br />recharge of the nearby drainages and unconsolidated material from <br />the mine would be negligible in comparison with the overall natural <br />flows of the streams recharged in areas above the operation. <br />The flood plains of Goodspring Creek, Wilson Creek and lower Taylor <br />Creek may meet the geomorphic criteria and flood irrigation <br />requirements of an alluvial valley floor. Runoff from the mining <br />operations drains into these floodplains. Therefore, Colowyo was <br />taken appropriate measures to protect the essential hydrologic <br />• functions by designating stream buffer zones and by installing <br />sedimentation ponds on the drainages from disturbed areas feeding <br />into Goodspring Creek, Wilson Creek, and Taylor Creek (see <br />Hydrology - North Map (Map 11) and Hydrology - South Map (Map 12)). <br />The overall role of the floodplains in collecting, storing, <br />regulating and yielding water for agricultural activities has been <br />unchanged and should continue to be unaffected by the mining <br />operations. <br />The possible alluvial valley floors in the vicinity of the mine <br />will incur no adverse impact due to mining by Colowyo. Surface <br />water pollution will be prevented by sedimentation ponds, sediment <br />control measures, proper mining and reclamation techniques, and <br />frequent monitoring of discharge water quantity and quality. The <br />hydrologic consequences of mining will not result in disruption of <br />the essential hydrologic functions due to the beneficial effects of <br />water treatment and flood control provided by the sedimentation <br />ponds and natural dilution of potential mine discharge to the <br />existing streams. <br />U <br />2.06-13 <br />