What is the minimum lot size required for the installation of a private sewage disposal system in Illinois?

In Illinois, the minimum lot size required for the installation of a private sewage disposal system is one acre. This regulation is in place to ensure that there is adequate space for the proper functioning and maintenance of the sewage system while also protecting public health and the environment. A larger lot size supports proper wastewater treatment and dispersal, reducing the risk of contamination to neighboring properties and groundwater sources.

While it's important to note that local ordinances can vary, one acre is a widely accepted standard across many jurisdictions in the state for private sewage disposal installations. This size helps to ensure that there is sufficient area for the drainage field and any other required components related to the sewage system. Additionally, it allows for more effective management of effluent and reduces potential issues related to flooding or saturated soils, leading to better overall public health outcomes.