| 2002 | Selected as U.S. EPA PEER Local Resource Center |
| 2001 | Offers online training courses |
| 2001 | Petroleum Storage Tanks program begins |
| 2000 | Creates Environmental Management Systems Institute |
| 1997 | UF/TREEO Ecosystem/Water Garden established |
| 1997 | Environmental Management Systems program begins |
| 1996 | GIS/GPS program begins |
| 1996 | UF/TREEO becomes headquarters for Southeast Partnership for Environmental Technology Education |
| 1995 | Lead Abatement program begins |
| 1987 | Initiates Florida's first training programs for solid waste landfill operators |
| 1986 | Asbestos Abatement program begins |
| | Hazardous Waste/Materials program begins |
| 1982 | Begins providing in-plant technical assistance and training to small municipally owned wastewater facilities under U.S. EPA-funded program |
| 1979 | Backflow Prevention program begins |
| 1979 | Opens doors at new facility |
| 1977 | Breaks ground on new facility |
| 1977 | Begins offering water and wastewater training before construction is complete on new facility |
| 1975 | UF/TREEO receives U.S. EPA Construction Grant |
| 1974 | State of Florida Board of Regents determines that the training center will be administered by the University of Florida and located on the land donated by the city of Gainesville |
| 1974 | By unanimous vote in both houses, the 1974 Florida Legislature directs the Board of Regents to establish the Center for Training, Research and Education for Environmental Occupations. The governor designates the center as the state training center under Section 109 (b) of the Clean Water Act. |
| 1973 | City of Gainesville and Alachua County Regional Electric, Water and Sewer Utilities vote to deed Kanapaha Plant site property for proposed environmental training center |
| 1972 | Director of state of Florida Department of Pollution Control appoints special committee to study how to provide statewide water and wastewater operator training |