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Documents

August 12, 1993

V.N. Shcherbin, Ukrainian Academy of Sciences, 'Concerning the Situation at the 4th Unit'

An outline of the reasons for the deterioration of the 4th block, largely owing to ventilation problems causing condensation to form, which freezes during winter and causes decay that can lead to the washing of nuclear particles into the surrounding atmosphere/groundwater. The report also proposes several emergency measures, such as improving ventilation systems, cleaning water from the block, and setting up of an investigation.

July 28, 1986

List of Information Subject to Classification concerning Questions Associated with the Accident at Unit Nº 4 of the Chernobyl AEhS (ChAEhS)

An archival summary of the level of secrecy attached to various types of information about the Chernobyl NPP accident, the vast majority of which are classified as "Secret."

August 30, 1986

Order from the Chair of the Committee of State Security [KGB] of the USSR, 'On Measures to Strengthen the Counter-Intelligence Work at Atomic Energy Units in connection with the Accident at the Chernobyl Atomic Energy Station'

The Chairman lists a series of directives and responses to the Chernobyl incident, addressed to different levels of KGB cadre, discussing ways to strengthen standards at nuclear power facilities, calling for increased responsibility for the failure of local KGB staff to inform the central command on plant issues, recommending that specialists be pulled in to ensure the safety of nuclear facilities going forward, and implementing more intense oversight at all nuclear plants and scientific research facilities to ensure that issues which may lead to accidents are known.

March 1, 1984

Report to M. Z. Banduristiy, the KGB Chief of the Ukrainian SSR in Kiev and the surrounding region on the emergency at the 3rd and 4th units of the Chernobyl nuclear power plant

This report discusses to violations of reactor designs and the disintegration of load-bearing concrete due to extreme temperatures and improper wall insulation.

September 15, 1982

Chair of the Committee of State Security [KGB] of the Ukrainian SSR to the Central Committee of the Communist Party of Ukraine, 'Informational Message for 14 September 1982'

The document discusses the number of foreigners who visited the Ukrainian SSR, rumored military training of OUN fighters in Southern England, the suspected murder of a Soviet ship captain in international waters, and a Unit 1 reactor accident at Chernobyl in 1982.