• Direct and Indirect I^ffectH of Action 

 Alternative B on JVater Yield 



No-Action Alternative B would 

 increase the annual water yield in 

 the Dog Creek watershed by an 

 estimated 2.9 percent over the 

 current level. This level of 

 water-yield increase would not be 

 sufficient to create unstable 

 channels . 



Cumulative Effects 



• Cumulative Effects qfJVo-,1ction Alternative 

 AonJraterl'ield 



No-Action Alternative A would have 

 no cumulative effects on water 

 yield. Existing harvest units 

 would continue to revegetate and 

 move closer to premanagement 

 levels of water use and snowpack 

 distribution. 



• Ctinudatice JiKJecbt of Action Alternative B on 

 Water Yield 



The removal of trees proposed in 

 Action Alternative B would 

 increase the water yield in the 

 Dog Creek watershed from its 

 current level of approximately 4.9 

 percent over unharvested to an 



estimated 7.8 percent. This 

 water-yield increase, and its 

 associated ECA level, includes the 

 impacts of all past management 

 activities, existing and proposed 

 roads, proposed timber harvesting, 

 and vegetative hydrologic recovery 

 in the Dog Creek watershed. The 

 water yield increase expected from 

 this alternative leaves the 

 watershed well below the 

 established threshold of concern 

 (See TABLE D-2 - WATER YIELD AND 

 ECA INCREASES IN DOG CREEK) . No 

 impacts to water quality are 

 expected as a result of Action 

 Alternative B. 



TABLE D-2 - WATER YIELD AND ECA 

 INCREASES IN DOG CREEK 



Page D-6 



Dog /Meadow Timber Sale Project Draft EA 



