Written by
Judith A. Gale, Deanna L. Osmond, Daniel E. Line, Jean Spooner, Jon A. Arnold,
Gregory D. Jennings, and Frank J. Humenik
NCSU Water Quality Group
March 1995
North Carolina
Cooperative Extension Service
NORTH CAROLINA STATE UNIVERSITY
COLLEGE OF AGRICULTURAL & LIFE SCIENCES
Distributed in furtherance of the Acts of Congress of May 8 and June 30, 1914. Employment and
program opportunities are offered to all people regardless of race, color, national origin, sex, age,
or disability. North Carolina State University, North Carolina A&T State University, U.S.
Department of Agriculture, and local governments cooperating.
This fact sheet is one of a series of Rural Clean Water Program Technology Transfer fact sheets
prepared by the NCSU Water Quality Group with support from the Extension Service, U.S.
Department of Agriculture (Cooperative Agreement No. 93-EXCA-3-0241).
Copies of the fact sheet series may be requested from: Publications, NCSU Water Quality Group,
Department of Biological and Agricultural Engineering, Box 7637, North Carolina State
University, Raleigh, NC 27695-7637, Email: wq_puborder@ncsu.edu, Fax: 919-515-7448.
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