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| Development: | Matthew J. Stuve, Richard W. Johnson |
| HTML Coding: | Susan Childress and Catherine Taylor |
| Advisors: | Joseph Yahner (ret.), Stephen Poe, and Joseph B. Rogers |
| Purdue Supervisors: | Dr. Don D. Jones, Dr. R. Mack Strickland, and Amy Childress |
| U.S. EPA Project Director: | Alfred Krause |
Developed at Purdue University in 1991 and 1999. Funded by the U.S. EPA Region 5.
Purdue University expressly disclaims any warranties or guarantees of the accuracy of fitness for a particular purpose of the material presented herein.