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2.04.7 Hydrology Description <br />Freeman Gulch and Sheep Corral Gulch are ephemeral drainages. Dove <br />Gulch is an intermittent stream. A Dove Gulch Hydrology Report is <br />presented in Volume IIIA, Exhibit 19. Iron point gulch is an intermittent <br />stream. Following are flow measurements taken from October 1999 through <br />October 2009 at Iron Point Gulch's confluence with Hubbard Creek. All other <br />monitoring events were recorded as dry. <br />Downstream Iron Point Gulch (D34 -12) <br />Date <br />10/97 <br />6/98 <br />7/98 <br />6/99 <br />5/00 <br />5/01 <br />5/03 <br />6/03 <br />Flow (cfs) <br />1.0 <br />2.4 <br />0.2 <br />0.25 <br />0.07 <br />0.2 <br />15.5 <br />0.2 <br />Date <br />5/04 <br />6/04 <br />6/05 <br />8/05 <br />4/06 <br />6/06 <br />5/07 <br />5/08 <br />Flow (cfs) <br />0.1 <br />0.01 <br />0.01 <br />0.003 <br />0.3 <br />0.07 <br />0.05 <br />5.79 <br />Date <br />7/08 <br />5/09 <br />7109 <br />Date <br />Aug -05 <br />Sep -05 <br />Oct -05 <br />Dec -05 <br />Flow (cfs) <br />4.48 <br />7.1 <br />1 3.3 <br />Flow (cfs) <br />4.54 <br />4.38 <br />3.48 <br />0.19 <br />Terror Creek is a perennial stream which drains approximately 29 square <br />miles (18,560 acres). The dendritic drainage pattern of tributary streams may <br />be modified in part by geologic structures fracture zones or faults. <br />Peak stream flows for the East and West Forks of Terror Creek occur during <br />spring snowmelt and heavy rainstorm events. Discharges from Terror Creek <br />Reservoir enhance continued stream flow from May -June through <br />September- October. Following are the flow measurements for the East Fork <br />of Terror Creek (SW -2) through November 2003, Terror Ditch (SW -10) <br />through December 2005. SW -01 was monitored up until fourth quarter 2006 <br />(West Fork of Terror Creek) and will be reinstated as part of the quarterly <br />monitoring program. <br />• <br />PR -12 2.04-44- 02/10 <br />flPPRowr_) <br />lr/la/jo <br />SW -02 Terror Creek Upstream (East Fork) <br />Date <br />Nov -03 <br />Dec -03 <br />Mar -04 <br />Apr -04 <br />May -04 <br />Jun -04 <br />Jul -04 <br />Aug -04 <br />Flow (cfs) <br />0.24 <br />0.56 <br />7.53 <br />7.34 <br />1.07 <br />3.48 <br />0.25 <br />0.72 <br />Date <br />Sep -04 <br />Oct -04 <br />Nov -04 <br />Dec -04 <br />Apr -05 <br />May -05 <br />Jun 05 <br />Jul -05 <br />Flow (cfs) <br />0.98 <br />0.72 <br />0.14 <br />0.03 <br />40.45 <br />59.55 <br />34.92 <br />3.19 <br />Date <br />Aug -05 <br />Sep -05 <br />Oct -05 <br />Dec -05 <br />Apr -06 <br />May -06 <br />Jun -06 <br />Jul -06 <br />Flow (cfs) <br />4.54 <br />4.38 <br />3.48 <br />0.19 <br />18.07 <br />1.91 <br />2.92 <br />4.07 <br />Date <br />Aug -06 <br />Sep -06 <br />Oct -06 <br />Nov -06 <br />Dec -06 <br />Mar -07 <br />Jun -07 <br />Nov -08 <br />Flow (cfs) <br />4.07 <br />0.14 <br />0.56 <br />0.56 <br />0.30 <br />8.71 <br />1.91 <br />0.10 <br />• <br />PR -12 2.04-44- 02/10 <br />flPPRowr_) <br />lr/la/jo <br />