Montana Fish § Game 



2 - 



July 21, 1975 



See Table IV for concentration values. 



The solid phase was chemically decomposed by a mix- 

 ture of nitric, hydrochloric, and hydrofluoric acid. The 

 elemental measurements were made by atomic absorption spec- 

 trophotometry. 



The dissolved phase (the water that was extracted from 

 the solid phase) was also analyzed by atomic absorption 

 spectrophotometry . 



If you have any questions or if I can be of any fur- 

 ther assistance, please call upon me at any time. 



Yours truly, 



L. A. Wegelm 



Chief, Analytical Division 



LAWrrlh 



Enclosure 



Copy to Marvin R. Miller 



A-56 



