Storage container for water-endangering liquids

A storage container for water-endangering liquids comprises a leakage detection and restraint system. The storage container provides a container that allows for a short-notice alarm system and that minimizes the collection volume, that is to ensure that the water-endangering liquid spreads as little as possible, as well as to reduce construction and maintenance costs. The storage container is characterized by the following features: a gutter surrounding the tank that is directly contiguous with the outer wall of the storage container and that collects leaked liquid, at least one gutter outlet, at least one liquid collection container, and at least one detection system for the water-endangering liquids. The gutter outlet is adapted to guide the liquid collected in the gutter to the liquid collection container that is provided with the detection system.