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."
July 8, 1986
Inventory of Information Subject to Classification on Issues related to the Accident in Block # 4 of the Chernobyl Atomic Energy Station (ChAES)
This document was made possible with support from Carnegie Corporation of New York (CCNY)
Secret
[Copy] 43
INVENTORY
Of information subject to classification on issues related to the accident in block # 4 of the Chernobyl atomic energy station (ChAES)
1. Information revealing the true causes of the accident in block # 4 of ChAES.
| Secret |
2. Full information about the character of violations and degree of damages to the equipment and systems of the energy block and atomic energy station.
| For Service Use |
3. Information about the quantities and content of the mixture ejected at the time of the accident.
| Secret |
4. Summary information about the radiation conditions containing a characterization of contamination on the premises of the atomic energy station and within the 30 km zone.
| Secret |
5. Information about the results of individual measurements of radiation conditions and the isotope composition of soil, water, etc.
| For Service Use |
The same information overall for the country, Republic, and Oblast.
| Secret |
6. Information laid out on topographical maps about the radiation conditions by districts of contamination.
| Secret |
7. Summary information about large-scale decontamination work to eliminate the consequences of the accident, as well as work to bury dangerous radioactive elements.
| Secret |
8. Information about the sanitary and hygienic evaluation of the systems of collecting, processing, neutralization, and burial of dangerous radioactive elements.
| Secret |
9. Information about new, effective means and methods of decontamination.
| Secret |
10.Information about the actual status of the reactor’s active zone, revealing the possibility of penetration by fuel elements beneath the foundation slab, radioactive contamination of the water table, the dangerous ejection of radionuclides into the surrounding environment, etc.
| Secret |
11.Summary information about radioactive contamination of the natural environment and processed foods and animal feed exceeding the maximum allowable concentrations.
| Secret |
12.Information about the level of contamination of people at the atomic energy station in combination with information about the nature of their work and details about the accident.
| Secret |
13.Summary information about the irradiation of the station personnel or repair personnel from involved organizations or populations.
| Secret |
14.Summary of information about rates of sickness in all forms of people subjected to activity in the period of the accident and elimination of its effects.
| Secret |
15.Information about mass poisoning and epidemic sickness rates connected to the accident.
| Secret |
16.Information about the results of treatment of radiation sickness with new methods or means.
| Secret |
17.Information about results of treatment and prevention activities connected to the accident.
| Secret |
18.Summary information about ecological evaluations of the effects of the accident.
| Secret |
19.Information revealing concrete technical decisions on the preservation of block # 4 of ChAES, as well as information about restorative work at blocks # 1, 2, and 3.
| For service use (prior to a decision about open publication) |
20.Information revealing planning or reporting information about the amounts of state capital investments in the preservation of block # 4 of ChAES.
| Secret |
21.Information revealing planning or reporting information about the amounts of construction and design work on state capital investments in the preservation of block # 4 of ChAES.
| Secret |
22.Summary information describing the status of construction and design work for the preservation of block # 4 of ChAES.
| Secret |
23.Information about the funds paid for contract work in capital construction by Construction Administration #605.
| Secret |
24.Summary information about the number of workers in Construction Administration #605
| Secret |
25.Information about the number of workers involved in work under conditions of increased levels of radioactivity.
| Secret |
26.Summary information about the names of organizations, agency affiliations or their numbers of workers involved in the work to eliminate the effects of the accident.
| Secret |
No 136/11-769
[Stamp] 5th Division
6th Bureau
KGB of the USSR
No 136 15-4507 08.07.1986
The document lists extent to which various information related to Chernobyl which should be classified, and for what reasons certain items may be shared.
Associated Topics
Subjects Discussed
Document Information
Source
Rights
The History and Public Policy Program welcomes reuse of Digital Archive materials for research and educational purposes. Some documents may be subject to copyright, which is retained by the rights holders in accordance with US and international copyright laws. When possible, rights holders have been contacted for permission to reproduce their materials.
To enquire about this document's rights status or request permission for commercial use, please contact the History and Public Policy Program at HAPP@wilsoncenter.org.