The main problems of the technogenic radioactive water reservoirs safety on Techa River (South Ural)

During the creation of armament plutonium at the PO Mayak in the South Ural, the acute problem of utilization and storage of low-Ievel liquid nuc1ear wastes arises. The technology allows to discharge them into the open storage reservoirs without hydroisolation of reservoirs, whereas in the USA, bottom and sides of reservoirs are cemented or paved with asphalt. During the exploitation of storage reservoirs, there arises the danger of their overfilling or out-break, as weIl as of seepage through their body and foundation. The problem will be less acute, if the ways of rational reservoir control are found.