EPA Review Notice 



This report has been reviewed by the Environ- 

 mental Protection Agency, and approved for 

 publication. Approval does not signify that 

 the contents necessarily reflect the views 

 and policies of the EPA, nor does mention of 

 trade names or commercial products constitute 

 endorsement or recommendation for use. 



WATER POLLUTION CONTROL RESEARCH SERIES 



The Water Pollution Control Research Series describes the 

 results and progress in the control and abatement of pollution 

 in our Nation's waters. They provide a central source of 

 information on the research, development, and demonstration 

 activities in the water research program of the Environmental 

 Protection Agency, through inhouse research and grants and 

 contracts vjith Federal, State, and local agencies, research 

 institutions, and industrial organizations. 



Inquiries pertaining to Water Pollution Control Research 

 Reports should be directed to the Chief, Publications Branch 

 (Water), Research Information Division, RSM, Environmental 

 Protection Agency, Washington, DC 20460. 



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