Shawano County Leaders Discuss Leachate Management and Treatment Solutions

The Marathon County Environmental Resources Committee convened on September 2, 2025, to discuss critical issues surrounding leachate management and upcoming training initiatives related to salt usage in the county.

A significant portion of the meeting focused on the management of leachate, a byproduct of landfill operations. Committee members emphasized the need for clarity in cost-sharing agreements with neighboring counties, particularly Shawano County, which is already involved in leachate management partnerships. The discussion highlighted the importance of establishing a contractual framework that outlines the responsibilities and risks associated with leachate treatment, ensuring that all parties contribute fairly to operational and capital costs.

Supervisor Robinson pointed out that the existing agreements regarding leachate management should be revisited to ensure adequate protection for Marathon County during its period of liability. The committee is also exploring options for collaboration with the city of Wausau to potentially treat leachate, as many other counties have established similar arrangements with their municipal wastewater systems. The costs associated with transporting and treating leachate were noted to be significant, with estimates around one million dollars annually.

In addition to leachate management, the committee discussed upcoming training sessions related to salt usage, which are part of the county's efforts to comply with municipal stormwater regulations. These trainings, organized by the North Central Wisconsin Stormwater Coalition and Wisconsin Saltwise, aim to educate local officials on effective salting practices during winter months.

The meeting underscored Marathon County's proactive approach to environmental management, particularly in addressing the complexities of leachate treatment and the responsible use of salt in stormwater management. The committee plans to continue its efforts in both areas to ensure sustainable practices moving forward.