If you conducted an analysis, it would probably show high 

 levels of soluble metals that are precipitated under 

 normal oxidation conditions. This occurs at every 

 sedimentation site in the river. The metal levels in 

 sediments in the lower reservoirs are at least ten-fold 

 higher than background, and are over 100 times higher at 

 Milltown. This occurs at all streamside riparian sites. 

 Along with the Cladophora that died the previous year, an 

 organic "fuel" is produced. Following a heavy runoff this 

 is mixed and trapped in the sediments. The oxidation of 

 this organic matter reduces the metals and produces a high 

 level of these soluble metals at the bottom. Any fish 

 trying to spawn in these areas has got to meet this 

 increased toxic level. This is a model, and obviously 

 speculation because we have not done a damn thing about 

 measuring it. This is where we ought to start. 



If we continue to plan to do streamside reclamation 

 studies without a picture of the fluvial mechanics in that 

 floodplain, we are likely doomed to failure. An extensive 

 and intensive study of these tailings should be a number 

 one priority. 



Response: Recommendations for intensive study of the 

 streamside tailings and fluvial mechanics are found on 

 pages 5-6 to 5-8. 



Dennis Workman, DFWP - Hissoula 



• The state can buy all the water it wants for instream use 

 (such as from Painted Rocks) , but without a right, it has 

 no control over the water. Once delivered, DFWP cannot 

 protect it to the mouth, and the water does not neces- 

 sarily reach the intended stretch of river. 



• The measures recommended in the report to enhance 

 fisheries are good. 



• When the Clark Fork is compared with other rivers, there 

 are alot of similarities - most have been adversely 

 affected by channel straightening, dewatering, algae, 

 high sedimentation during runoff, etc. People on the west 

 side are accustomed to clean rivers - they relate to clear 

 water, low algal growth, etc. 



• If we are serious about improving the Clark Fork fishery, 

 we need to take care of the toxic metals problems - this 

 is where the most progress can probably be realized. 



A-14 



