1. Department of Civil and Environmental Engineering The George Washington University Washington DC USA
2. DC Water and Sewer Authority Washington DC USA
3. Department of Civil & Environmental Engineering University of South Florida Tampa FL USA
4. Environmental Engineering The Catholic University of America Washington DC USA
5. ARAconsult Innsbruck Austria
6. NEWhub Corp. Herndon VA USA
7. Brown and Caldwell Alexandria VA USA
8. Hampton Roads Sanitation District Virginia Beach VA USA