The planned investment aims to improve the status of existing water management (overloaded rain collectors) and to prevent further degradation of the drainage system. The project is planned in the area of built-up single-family and multi-family residential infrastructure with accompanying recreational greenery, pedestrian and car transport routes, with full underground armament. As part of the project, 4.14 km of rainwater will be built (the project includes 9 locations in Płońska). Implementation of the task will reduce local flooding, reduce the risk of flooding and reduce sanitary and epidemiological hazards.