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Although trap and haul enables WDW to pass Bteelhead upstream of the dam, WDF 

 does not use the trap to pass coho, because WDF considered the other aspects 

 of mitigation sufficient. Expanding the season for trap-and-haul operations 

 to include salmon could restore access to potential coho spawning and rearing 

 habitat. 



Eoquiia River System Dams 



Three diversion dams exist in the Hoguiam system and supply municipal water to 

 the City of Hoguiam. These affect passage for up to 10.2 river miles 

 upstream, depending on whether the fish ladders are passable at all flows. 



Location of dam Accessible 



Stream mile miles upstream Ladder present 



North Fork Little Hoquiam 2.0 2.0 no 



Davis Creek 0.3 1.7 yes 



West Fork Hoguiam 10.7 8.3 yes 



Total 12.0 



The Stream Catalog (Phinney et al . 1975) states that North Fork Little Hoguiam 

 Dam is a total barrier to all species, and that the dams on Davis Creek and 

 the West Fork Hoguiam, while equipped with fishways, may periodically not pass 

 chinook, coho, or chum; coho in particular were reluctant to use the West Fork 

 fishway. However, QFiD has been evaluating escapement on the West Fork since 

 19SS and has built a trap in the fish ladder. They discovered that, with 

 proper flows, chinook, chum, and coho salmon, steelhead, and cutthroat trout 

 all use the ladder. For example, an average of 300 coho move upstream past the 

 ladder each year (Chitwood, QFiD, pers. coram.). 



The three dams also tend to fill with silt and organic debris, which has been 

 periodically flushed downstream. The flushing has been known to cause fish 

 mortality (Chitwood, QFiD, pers. conn.) and degrade spawning gravels for some 

 distance downstream (Bill Banks, City of Hoguiam, pers. coram. ) . An 

 alternative silt removal procedure may exist to remove this danger. 



Hater Withdrawal 



There have never been any calculations of fish flow requirements in the 

 Chehalis Basin except that WDF and WDW settled on flow agreements with the 

 Corps after construction of Wynoochee Dam and with Pacific Power and Light 

 upon construction of Skookumchuck Dam. 



The State of Washington has granted thousands of surface water rights and 

 claims, divided into categories of "Industrial and Commercial" (833 cfs), 

 "Municipal* (590 cfs), and "Individual and Community Domestic" (197 cfs) (Jo* 

 Cat-on, WDOE, pers. com. ; Harper, in prep.). The principal industrial uses 



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