STUDY NUMBER : 9.3 



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



TITLE OF STUDY : Historical and Current Strearnflow and Water 

 Quality Data for the Clark Fork and the Mouths of Major Tribu- 

 taries 



CONTACT ( S ) : Joe Moreland - US Geological Survey, Helena - 



449-5263 



Roger Knapton - US Geological Survey, Helena - 

 449-5263 



John Lambing - US Geological Survey, Helena - 

 449-5263 



OBJECTIVE : Monitor stream discharge and water quality parameters 

 at selected stations in the Clark Fork Basin. 



DURATION : 1907 - Indefinite 



CURRENT STATUS : The US Geological Survey 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 Perma, are also 

 being monitored for selected water quality parameters. Physical, 

 chemical and biological samples are being collected at the Mis- 

 soula station. Physical and chemical samples are being collected 

 at Perma. 



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

 pended sediment samples were collected from the Clark Fork River 

 at Deer Lodge and Turah. Heavy metal samples were also collect- 

 ed 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 that 

 work was provided, in part, by the 1985 Montana Legislature 

 through a Resource Indemnity Trust grant. ) Daily sediment sta- 

 tions were operated above and below Milltown Dam in cooperation 

 with the Federal Energy Regulatory Commission and Montana Power 

 Company . 



FUTURE ACTIVITIES : Most of the above outlined monitoring efforts 

 will continue. The Montana Office has also prepared a proposal 

 to monitor twenty-two stations in the basin for physical and 

 chemical parameters. The earliest possible date for funding 

 of all or part of this proposal appears to be FY '87. 



PUBLICATIONS AND REPORTS 



Historical Water Quality Data for the Clark Fork River and the 



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