Facilities, for management and storage of waste hazardous substances, must be designed in such way that they do not pose a threat to humans, animals and nature. It is important that in the case of accident, they do not pose a significant environmental hazard. In the first part of the thesis, I presented the legislation basis related to environmental protection in cases of facilities dealing with hazardous waste management. We explain basic requirements that need to be fulfilled for industrial and commercial facilities in the case of containers and other objects where hazardous substances are stored. In the second part of my thesis I present an example of Tojnica stream pollution after the fire in the waste hazardous substances facility Kemis in Vrhnika. I present the measures that were taken after the fire event, pollution of the Tojnica stream and results of the measurements followed by an overview of the local people and general public informing about the fire event. Finally, I present possible improvements of the existing containment retention system.