The Big Pařezný pond, a waterwork of the III.category, the reserve source of drinking water is in a state of emergency, potentially endangering the property and safety of the inhabitants of the nearby village Řásná (223 inhabitants to 2017 according to the CZSO) and other municipalities along the river. The location is part of the PR Grand Parcé Pond, located near the village Řásná, in the district of Jihlava. The aim of the project is to capacity security overflows, reconstruction of the dam and technical objects of the waterwork in order to protect man, property and nature nature reserve.