Environmental Protection Agency. 1972. A water quality 



study of the upper Clark Fork River and selected tribu- 

 taries. Region VIII, Denver, Colorado. 



1974. Clark Fork River study, Montana, July-August, 



1973. Region VIII. Denver, Colorado. 



1983. Methods for Chemical Analysis of Water and 



Wastes. EPA 600/4-79-020. Revised March 1983. 



1985a. Water Quality Criteria Documents. Federal 



Register Vol. 50: 30784. July 29, 1985. 



1985b. Final report on the federal/state/local 



nonpoint source task force and recommended national 

 nonpoint source policy. Prepared by the Environmental 

 Protection Agency for the nonpoint source task force. 



1986a. Maximum contaminant levels (Subpart B of 



Part 141, National Primary Drinking-Water Regulations): 

 U.S. Code of Federal Regulations, Title 40, Parts 100 to 

 149, revised July 1, 1987. Washington D.C. pp. 530. 



1986b. National Secondary Drinking-Water Regula- 

 tions: U.S. Code of Federal Regulations, Title 40, 

 Parts 100 to 149, revised July 1, 1987. pp. 592-593. 



1986c. Quality criteria for water 1986. 



EPA 440/5-86-001. 



1987a. Water Quality Criteria Documents. Federal 



Register Vol. 52: 6213. March 2, 1987. 



1987b. An assessment of the sources and affects of 



the pollution of the Clark Fork River and Lake Pend 

 Oreille. Environmental Protection Agency, Environmental 

 Research Laboratory. Duluth, Minnesota. 



1987c. Nonpoint source guidance. Environmental 



Protection Agency Office of Water. Washington, D.C. 



1988. Environmental Protection Agency and Depart- 



ment of Health and Environmental Sciences. Clark Fork 

 Superfund Master Plan. Helena, Montana. 



Environmental Quality Council. 1988. House Joint Resolution 

 49: Forest practices and watershed effects. Draft 

 report. November 7, 1988. 



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