STUDY NUMBER ; 4.2 



ORGANIZATION ; Montana Department of Health and Environmental 

 Sciences (MDHES) - Water Quality Bureau 



TITLE OF STUDY ; Upper Clark Fork River Monitoring 



CONTACTS ; Steve Pilcher - Water Quality Bureau Chief - 

 444-2406 



Loren Bahls - Project Leader - 444-2406 

 Erich Weber - Water Quality Specialist - 444-2406 



OBJECTIVE: Assess the effectiveness of the Warm Springs 

 Ponds treatment system and evaluate water quality conditions 

 through reaches of the Clark Fork River above confluence of 

 Rock Creek. 



DURATION ; 1976 - Indefinitely 



CURRENT STATUS ; The Clark Fork River station at Deer Lodge 

 (STORET 1=2MTHDWQ 35260917) is the principal DHES ambient 

 water quality station on the river and the only comprehensive 

 long-term water quality station in Montana operated exclu- 

 sively by the State. Parameters at this station include: 

 discharge, TSS and turbidity, lab pH, alkalinity, hardness, 

 field pH, temperature, specific conductance, common ions, 

 algal nutrients, and selected metals (As, Cd, Cu, Fe, Mn, Pb, 

 and Zn--"total recoverable"). Samples have been collected 

 sporadically since March, 1976 and monthly since January, 

 1978. 



The following five stations have been sampled monthly 

 since December, 1982; Clark Fork River above the Little 



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