Figure 19. --Use of 

 suspended sediment 

 sampler. 



period. Comparisons with the water temperature of unlogged Harris River 

 also show that logging has not caused changes in stream temperatures. 



Suspended sediment sampling during spring, summer, and fall at various 

 stages on all of the five study streams show that the concentrations 

 are very low. Sediment production in Maybeso Creek has not been any 

 greater than in any of the unlogged study streams. A flood stage of 

 4.82 feet resulted in a suspended sediment load of only 11 p. p.m. in 

 Maybeso Creek. 



Prelogging results were published in Station Paper No. 5 in September 

 1956. Results of the study during the transition period from unlogged 

 to completely cut over will be summarized during the winter of 1958-59. 



-36- 



