Table 5. Footnotes 



Number of channels ratings: 



Number of active channels in the mined area 

 R Number of active channels upstream from the mined area 



10 3 < B^ 

 9 2.5 < B„ £ 3 



8 2 < B_, £ 2.5 



7 I .5 < B^ < 2 



K 



6 1 < B < 1.5 or other B values if they are within normal 

 variation ranges of the river 



5 B = I of i f other data indicate no change 



K 



4 0.67 < B < I or other B values if they are within normal 

 variation ranges of the river 



0-3 Not used 

 Channel stability ratings: 



6-10 Not used 



5 No change in channel stability 



4 Slight decrease in stability, but within natural stability vari- 

 ation of the r i ver 



3 Moderate decrease in channel stability due to gravel removal 



2 Large decrease in channel stability due to gravel removal 



I Substantial decrease in channel stability due to gravel removal 



Very substantial decrease in channel stability due to gravel 

 remova I 



Flow diversion ratings: 



10 High potential for river to divert all its flow permanently 

 through the site 



9 Diversion of a significant quantity of flow through the site oc- 

 curred within several years 



8 Moderate potential for river to di vert all of its f I ow permanent I y 

 through the site 



7 Moderate to high potential for some of the river flow to divert 

 permanently through the site or for flow diversion through the 

 site during flood events 



6 Low potential for river diversion through the site 

 0-5 Not used 



94 



