PREFACE 



This publication is a result of the research program of the Institute of Natural 

 and Environmental Resources. The Institute is a multi-disciplinary group of 

 scientists involved in a coordinated program of research, teaching, and extension. 

 The research effort encompasses investigations of: problems affecting the quality 

 of the environment, economics of agriculture, forest and wildlife resources, the 

 efficient use and conservation of water and soil, and regional and community 

 planning and development. 



ACKNOWLEDGEMENTS 



I wish to thank the many students and faculty members at the University of 

 New Hampshire and the staff members from the various state and federal 

 agencies who helped make this publication possible. Particular thanks go to the 

 New Hampshire Water Supply and Pollution Control Commission for co- 

 operation in assembling much of the basic data. 



The work reported herein has been accomplished as part of the research 

 mission of the Institute of Natural and Environmental Resources at the 

 University of New Hampshire. The research project has been supported by the 

 New Hampshire Agricultural Experiment Station and by the United States 

 Department of the Interior as authorized under the Water Resources Act of 

 1964, Public Law 88-379, through the New Hampshire Water Resource Research 

 Center. 



Programs of the New Hampshire Agricultural Experiment Statiofi are open to 

 all persons without regard to race, color, national origin or sex. The University 

 of New Hampshire is an Affirmative Action/Equal Opportunity Employer. 



