Editorial Services Provided by 



Upper Midwest Environmental 

 Sciences Center 



CENTER DIRECTOR 

 Leslie E. Holland-Bartels 



CHIEF, SUPPORT SERVICES BRANCH 

 Barbara A. Demi 



REPORT EDITOR 

 Jerry D. Cox 



Mention of trade names or commercial products does not constitute endorsement 

 or recommendation for use by the U.S. Department of the Interior, U.S. Geological Survey. 



