ALBION â The Indiana Department of Environmental Management wonât let Noble County officially close its old landfill because the water leaching from the waste buried there contains toxic chemicals, including ammonia. After years of of trying to figure out what to do with the contaminated leachate that comes to the surface with the water, the Noble County Commissioners Monday moved closer to a solution that would take a different approach. During Mondayâs regularly scheduled meeting, the commissioners got a cost proposal from Applied Natural Sciences Inc., a company that has had success controlling leachate by strategically planting trees that soak up the water, eliminating the carrying agent that moves the contaminants to the surface.