STUDY NUMBER ; 9.3 



ORGANIZATION : U.S. Geological Survey (USGS), Montana Office 



TITLE OF STUDY ; Historical and Current Streamflow and Water 

 Quality Data for the Clark Fork and the Mouths of Major 

 Tributaries 



CONTACTS ; Joe Moreland - USGS, Helena - 449-5263 

 Roger Knapton - USGS, Helena - 449-5263 

 John Lambing - USGS, Helena - 449-5263 



OBJECTIVE ; Monitor stream discharge and water quality 

 parameters at selected stations in the Clark Fork Basin. 



DURATION : 1907 - Indefinitely 



CURRENT STATUS : The USGS is presently collecting continuous 

 stream discharge- measurements at twenty four stations in the 

 Clark Fork Basin. Two of these stations, the Clark Fork 

 River below Missoula and the Flathead River at Perraa, are 

 also being monitored for selected water quality parameters. 

 Physical, chemical and biological samples are being collected 

 at the Missoula station. Physical and chemical samples are 

 being collected at Perma. 



During the period from April, 1985 - July, 1986, daily 

 suspended sediment samples are being collected from the Clark 

 Fork River at Deer Lodge and Turah. Heavy metal samples are 

 also being collected at these stations as well as from Rock 

 Creek, Flint Creek, the Little Blackfoot River and the 

 Blackfoot River during high stream discharge conditions and 

 storm events. (Funding for this work was provided, in part, 



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