An approach is presented that allows to choose the facilities of geoengineering protection of accumulated environmental damage. This approach is based on taking into account the peculiarities of the hydrogeological, hydrological, geomorphological situation of territories where the objects are located, as well as their ranking depending on the environmental burden. A practical example of arrangement of a large storage of hazardous waste of the chemical industry is considered. Such protection with a perimeter waterproofing curtains combines the anti-filtration functions, bank protection and strengthening the bearing capacity of soils. For the first time, a curtain based on soil-cement piles was used as alternative to the well-known sheet pile technologies to protect the geological environment and watercourse during lateral filtration of contaminants of slurry body.