On April 6, 1994, the department's Solid Waste Management Program received a $1.75 million grant from the U.S. Environmental Protection Agency to study the effects of the heavy precipitation patterns that occurred during the Great Flood of 1993 on Missouri's landfills. Due to this heavy precipitation event, 101 of Missouri's 114 counties were included in a Federal Disaster Declaration. Landfills throughout the state had to contend with difficult operating conditions and increased leachate production. In addition, some landfills experienced increased methane gas production. Saturated conditions were thought to have increased the potential for leachate and methane migration into the environment.
The study was conducted in phases.
1. Flood Grant-Phase One
2. Flood Grant-Phase Two
3. Flood Grant-Phase Three