Parameters analyzed include: 



Heavy metals (total recoverable): Cu, Zn, Fe, Mn, As, 



and Cd 

 Nutrients: ammonia, nitrate, kjeldahl nitrogen, total 



phosphorus , orthophosphorus 

 Others: Ca, Mg, alkalinity, hardness silica, turbidity, 



total suspended solids, volatile suspended solids 



and fecal coliforms. 



Additional parameters for the lake samples include 

 chlorophyll-a and secchi disk transparency and profiles (down 

 to 50 meters) for temperature, dissolved oxygen, pH and 

 specific conductivity. Algal assays have also been conducted 

 on lake samples. 



FUTURE ACTIVITIES : A report, outlining the results of the 

 above monitoring, will be published in early 1986.- A 

 proposal for a more comprehensive study of the lake has been 

 prepared. Hopefully, this proposal will be jointly submitted 

 with the State of Montana's Clark Fork Basin proposal to 

 secure funding from the U. S. Environmental Protection 

 Agency. A likely avenue of funding is the recent amendments 

 to the Clean Water Act, which call for a comprehensive water 

 quality study of the Lake Pend Oreille/Clark Fork System. 



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