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Risk Assessment

Contact Us about the Freshwater Biological Traits Database (Traits)

Report an environmental violation

Report possible violations of environmental laws and regulations.

Mailing Address:
U.S. Environmental Protection Agency
National Center for Environmental Assessment
c/o Exposure Analysis & Risk Characterization Group - Traits Program
Mail Code: 8623R
1200 Pennsylvania Ave, N.W.
Washington, DC 20460

Contact: EPA's contact for Traits is Britta Bierwagen who may be reached at (202) 564-7676 or email Britta Bierwagen ( For technical issues, please use the form below.

Please use the form below to send us comments or questions and be sure to include your e-mail address if you’d like a response.