Extensive Technical Documentation is available as well as an in-depth users guide.
The Environmental Protection Agency has released this information at http://www.epa.gov/waterscience/models/aquatox/download.html
Also, you may visit the EPA Office of Water homepage for AQUATOX at http://www.epa.gov/ost/models/aquatox/
Email inquries to Richard Park, at dickpark@cableone.com
or alternatively,
Jonathan Clough at jclough at(@) warrenpinnacle.com.
Mail inquiries should be directed to