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• mittent streams, Williams Drag and Eush Draw, drain north- <br />~ easterly through the tract. ltao smaller unnnr.ied tributaries <br /> of Williams. Draw flow northeasterly into lJilli:e;ns Drew. <br /> (See maps ;fl and 1i7.) <br /> As part .of the E.~^:L~ Stud}•, .USGS established n surf; cc crater <br /> monitoring station in '::illiams Draw, located just north ,~i <br /> the tract. The measured discharge through lilliams Draw <br /> during the spring snaw melt period ranged from.l to 2.5 <br /> cubic feet per second. The sediment concentration during <br /> that time varied between 29 and 31 parts per million. The <br />c....... water quality information was not available but was thou,ht <br /> to meet state standards. <br /> USGS also maintains stream monitoring stations on the <br /> Canadian River. Present caater quality meets state standards. . <br /> ' More detailed information is available in tlce USUS records. <br /> t <br />Present mining plans call for avoiding both LJil.liams and <br /> Bush Draw, but the tributaries of Williams llraw IJ.Lll be <br /> impacted. (Refer to map r3.) <br /> 3. Water Use - Pfost of the water produced on the tract is either <br /> absorbed into the soil to support plant growth or to recliargc . <br /> the aquifer. Runoff cJater flows either into the Canadian <br />1 River or is collected in storage facilities for livestncl: and <br /> wildlife watering. No domestic or municipal cJater supplies <br /> ' are within the area. <br /> i <br />4. Flood Plain - The proposed lease area does not lie in a dcsig- <br />~ nated flood plain or flood hazard area susceptible to a <br /> ' <br />50 - or 100 - year event. <br />~ <br />5. Water Rights.- There are no live streams within the proposed <br />~ <br />I? lease tract and therefore no surface water rights will exist. <br />~ I No caater wells are present and no evidence of any ground water <br /> ' rights exists. <br />' <br />h I <br />G. Vegetation - <br /> ! Due to the variations in soil, topography and other environmont::l <br /> factors found within the proposed leaae area, sevc•.n ecolult;ca] <br /> subdivisions or range sites can be dcliniated: mountain loam, <br /> <br />~ l <br />~ dry mountain loam, drainage bottom, clay pan, valley bench, dry <br />I j er.posure and salt flat. Each range site is characterized ley <br /> significant differences in its vegetative component, i.e. <br />' differences in species, differences in proportions of. species, ~, <br />,! differences in total annual production. <br />i~ The mountain loam range site occupies mv.nly the n]luvinl :;lui~rs <br />;i of the area. Tlcis site is dominated by big sagebrush (Aver _w i__in <br />• ~; tr~idontaCa) and rabbitbrush (Ci~rgsothmnnus Spp.). 1•fojor i:r:cmp, <br />Il the herbaceous species arc some of tide more moisture dcir.:~ndin;• <br />grasses such as Idaho fescue (Festuca Idahoensis) and m~i;.ton <br />~ 13 <br />~~ <br />