Abbreviations Used 

 in the Text 



BHA butylhydroxyanisole 



BHT butylhydroxytoluene 



BOD biochemical oxygen demand 



BTU British thermal unit 



C condition factor (English units) 



°C degrees centigrade or Celsius 



cal calories 



cc cubic centimeter 



CFR Code of Federal Regulations 



cm centimeter 



cu ft cubic foot 



D density index 



DO dissolved oxygen 



EPA Environmental Protection Agency 



et al. and others 



F flow index 



°F degrees Fahrenheit 



ft foot 



FWS Fish and Wildlife Service 



g gram(s) 



gal gallon(s) 



gpm gallon(s) per minute 



XIX 



