This paper is based on computational and experimental work and expeditions conducted in 1985-1992 by staff of the Russian Scientific Center "Kurchatovskii institut," the Chemical and Medical Services of the Pacific Ocean Fleet, and some other institutes and organizations in Primor'e. These data served as a basis for a section in the "white book" -a report by A. V. Yablokov's commission on the disposal of radioactive wastes in the seas washing Russia's coasts.* The nuclear society plans to publish a monograph containing the basic information in these works.Reactivity Accident and Its Consequences. A serious radiation accident occurred on August 10, 1985 in a nuclear-powered submarine moored at a pier at a dockyard in Chazhma Cove for repairs (Primor'e, town of Shkotovo-22): after the reactors were refueled a spontaneous chain reaction occurred in the starboard reactor due to a violation of nuclear safety rules and technology of the explosion of the reactor cover. As a result of a thermal explosion the bow and stern equipment compartments were destroyed, part of the fresh fuel was thrown out of the reactor, the reloading house was destroyed (its roof was thrown 70-80 m away and fell into the water 30 m from shore), and the submarine suffered damage to the pressure hull in the stern part of the reactor bay. Immediately after the explosion a fire broke out in the reactor bay. It took 4 h to contain the fire, after which a radiation inspection of the territory of the dockyard and the automobile roads *The facts and problems associated with the disposal of radioactive wastes in the seas washing the coasts of the Russian Federation (the materials of the report of a government commission).

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