REVIEW NOTICE 



This report has been reviewed by 

 the Water Quality Office, Environ- 

 mental Protection Agency and the 

 U. S. Bureau of Reclamation, and 

 has been approved for publication. 

 Approval does not signify that the 

 contents necessarily reflect the 

 views and policies of the Water 

 Quality Office, Environmental 

 Protection Agency, or the U. S. 

 Bureau of Reclamation. 



The mention of trade names or 

 commercial products does not 

 constitute endorsement or recom- 

 mendation for use by either of the 

 two federal agencies or the Cali- 

 fornia Department of Water Resources 



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