This work presents the integrated planning and management of urban solid waste and mechanical-biological treatment, as an alternative to reduce the Ecological Footprints of small municipalities with the landfill gas emissions from residual household waste disposing and thus contributing to a micro-regional policy of environmental sustainability. The studied case is a group of small municipalities in the South of the State of Minas Gerais, which, given the proximity of their urban centres and interdependence among its social, economic and environmental activities, shows suitable conditions for the purposes of this work. This group is formed by the municipalities of Caxambu, Baependi, Conceição do Rio Verde, Cambuquira, Lambari, Campanha and Jesuânia, and is located in a region of natural reserves, agricultural production, historic and ecological tourism, and lacks appropriate environmental public policies for the management of municipal solid waste. It is noteworthy the work s methodology option of approaching the social and economic aspects of Sustainability, focusing on verifying those Indicators only at their environmental aspect. The research is based on the assessment of Environmental Sustainability Indicators related to the collection, transportation and disposal of residual household waste of the small municipalities studied, and allows for a comparative analysis to measure the environmental impact between the regular practice of using open-air uncontrolled landfill (non-treated garbage depository or dumping) and the processing on a community mechanical-biological treatment station.