EPA Review Notice 



This report has been reviewed by the Environmental 

 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 



ITie 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 with 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, R&M, Environmental 

 Protection Agency, Washington, DC 20460. 



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