Region 4: Risk Assessment Contacts
Region 4 offices are located in Atlanta and serve AL, FL, GA, KY, MS, NC, SC, TN, and 6 Tribal Nations.
Other EPA areas where you live
Key Issues
Region 4 (Southeast) Contacts
Scientific Support Section
- Chief Tim Frederick (Frederick.Tim@epa.gov), 404-562-8598
Ecological Risk Assessment
- Brett Thomas (Thomas.Brett@epa.gov), 404-562-8751
- Sharon Thoms (Thoms.Sharon@epa.gov), 404-562-8666
- Shannon Berg (Berg.Shannon@epa.gov), 404-562-9720
Human Health Risk Assessment
- Shanna Alexander (Alexander.Shanna@epa.gov), 404-562-8635
- Ayana Cunningham (Cunningham.Ayana@epa.gov), 404-562-8772
- Adam Friedman (Friedman.Adam@epa.gov), 404-683-5733
- Kevin Koporec (Koporec.Kevin@epa.gov), 404-562-8644
- Jon Richards (Richards.Jon@epa.gov) (Radiation), 404-562-8648
Hydrogeology
- Noman Ahsanuzzaman (Ahsanuzzaman.Noman@epa.gov), 404-562-8047
- Bei Huang (Huang.Bei@epa.gov),404-562-8183
- James Ferreira (Ferreira.James@epa.gov), 404-562-9383
- Bill O'Steen (Osteen.Bill@epa.gov), 404-562-8645
- Katherine Schroer (Schroer.Katherine@epa.gov), 404-562-8026
General Information
- Contact Region 4, 404-562-9900, or in the Region 4 states, 800-241-1754
- Learn more about Region 4 (Southeast)
Region 4 Risk Assessment Resources
- Region 4 Ecological Risk Assessment Supplemental Guidance (March 2018 Update)
- Region 4 Human Health Risk Assessment Supplemental Guidance (March 2018 Update)
- Region 4 Issue Paper for PCB Characterization at Region 4 Superfund and RCRA Sites
- Region 4 Superfund X-Ray Fluorescence Field Operations Guide (July 2022 Update)
- Region 4 Urban Background Study
- Regional Removal Management Levels (RMLs) User's Guide
- Laboratory Services and Applied Science Division (LSASD) - Provides laboratory services and field support to the Region