ABSTRACT: The numerous interventions in watercourses are one of the main factors that increase the occurrence of flooding in urban areas. Using a system of gutters, pipes and channels, these works were originally intended to facilitate and speed up runoff flows. For a long time, municipal governments have overlooked the occupation of wetlands, riparian areas and the excessive canalization of urban streams. As a result, floods are more frequent and their impacts worsen with urban expansion and population increase. Recently, more effective LID drainage measures, still seen as a novelty in Brazil, have been proposed to address the causes of the problem, seeking to retard and lower flow peaks and to reduce drained volumes, thereby working towards more resilient and environmentally sustainable cities. However, non -acceptance and non-commitment by public agencies and the communities involved is still an obstacle to the application of these measures. The overall objective of this work is to present a case study involving the implementation of LID techniques in a catchment area of approximately 7.78 km2 in southeastern Brazil. The techniques involved exposing conflicts that arose in the relationship between the thce of the State Public Prosecutor and the property owners and using participatory management to obtain proposals for mitigating recurrentf Iooding. The results include the local arrangements involv ing Iandowner participation in the works
and/or actions proposed.
