HC Deb 17 November 1982 vol 32 cc166-9W
Mr. Meacher

asked the Secretary of State for Energy if he will publish a list of material unaccounted for at each nuclear fuels establishment during each year since 1977.

Mr. John Moore

[pursuant to his answer, 11 November, c. 267]: The information is as follows:

BNFL Springfields
Year Plutonium Kg (T) HEU Kg U235 LEU Kg U Natural U te U Depleted U te U
1977–78 Not Applicable * +249 -9.7 -0.9
1978–79 Not Applicable * -897 -6.8 -20.0
1979–80 Not Applicable * -502 +1.1 +13.6
1980–81 Not Applicable * +115 -6.4 +10.4
1981–82 Not Applicable * -322 -1.6 +7.3

BNFL Sellafield
(Windscale prior to 1980–81)
Year Plutonium Kg (T) HEU Kg U235 LEU Kg U Natural U te U Depleted U te U
1977–78 +24.1 -3.1 [...]+1 +0.065 +8
1978–79 +20.2 +0.2 -6.6 -0.010 +19
1979–80 +5.5 -1.4 -2.7 +0.6 -2
1980–81 -9.9 +0.5 +3.1 [...]-0.1 +3
1981–82 -10.5 -0.1 -1.8 -0.4 -19.7

BNFL Capenhurst
Year tonnes U
1977–78 +3.7
1978–79 -3.0
1979–80 +0.3
1980–81 +2.5
1981–82 -0.4

AEA—Winfrith
Year Plutonium Kg (T) HEU Kg U235 LEU Kg U Natural U te U Depleted U te U
1977–78 +0.2 -0.6 +0.1 +0.011 -0.013
1978–79 +0.3 -0.1 -0.1 +0.019 +0.001
1979–80 +0.1 * -0.4 -0.019 Nil
1980–81 +0.4 -0.2 -23.9 -0.003 Nil
1981–82 +0.3 * -1.7 -0.008 Nil

AEA—Windscale
Year Plutonium Kg (T) HEU Kg U235 LEU Kg U Natural U te U Depleted U te U
1977–78 * +0.3 -25.3 +0.116 -0.303
1978–79 -0.2 +0.1 -0.5 +0.082 +0.073
1979–80 -0.2 -0.7 +3.5 +0.020 -0.014
1980–81 +0.6 -0.1 +1.8 +0.036 +0.002
1981–82 +0.3 -0.3 +1.7 -0.004 +0.009

AEA—Harwell
Year Plutonium Kg (T) HEU Kg U235 LEU Kg U Natural U te U Depleted U te U
1977–78 +0.2 -0.4 -5.7 +0.007 +0.001
1978–79 * * -0.1 +0.107 *
1979–80 -0.1 * * +0.018 -0.007
1980–81 +0.2 -0.1 * -0.015 -0.003
1981–82 -0.2 * -0.1 +0.005 +0.006

AEA—Springfields
Year Plutonium Kg (T) HEU Kg U235 LEU Kg U Natural U te U Depleted U te U
1977–78 Not Applicable -0.2 -2.6 -0.146 -0.089
1978–79 -0.1 +10.5 +0.480 +0.179
1979–80 * +9.8 +0.238 +0.028
1980–81 +0.1 +9.5 -0.150 -0.004
1981–82 * +14.9 +0.016 -0.019

AEA—Dounreay
Year Plutonium Kg (T) HEU Kg U 235 LEU Kg U Natural U te U Depleted U te U
1977–78 * +3.7 -1.7 +0.053 +0.067
1978–79 -0.1 +0.5 +1.0 +0.016 +0.067
1979–80 +0.1 -11.2 -2.0 -0.029 -0.067
1980–81 -2.7 -3.5 -4.7 -0.008 +0.051
1981–82 -0.1 -0.7 -0.6 -0.008 -0.024

Footnotes:

* Negligible

HEU - High Enriched Uranium (above 20% enrichment)

LEU - Low Enriched Uranium (up to and including 20% enrichment)

te U - Tonne Uranium

Kg (T) - Kilogramme Total