Planning for environmental restoration of the contaminated banks near bohunice NPP

The 18 km long banks of the Bohunice NPP waste water recipient are contaminated by¹³⁷Cs as a result of two accidents on the CO₂ cooled NPP-A1 unit in 1976 and 1977. Contamination acceptance limits 6 or 8 Bq¹³⁷Cs/g of soil, depending on contaminated area size, were derived on the basis of developed principles, and approved by the authorities. Removing and safe burial of 1100 m³ of contaminated soil from steep area and 15 cm thick clean soil covering on about 1 ha of flat area of the contaminated banks is planned in frame of the re-considered restoration project implementation in 1995/96.