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The material you are about to view is a product of Purdue University.
This environmental software program was produced by Purdue University under a cooperative agreement with the United States Environmental Protection Agency.
Although this material was prepared in collaboration with EPA, Purdue University is the author, holds the exclusive copyright, and is solely responsible for its content subject to the terms of the cooperative agreemeent. Limitations under the copyright, which allows for free reproduction and distribution of the software, can be found on the program's title page.
EPA continues to work with Purdue University in developing new environmental software and updating older material, and we appreciate being notified of any errors or other issues.