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					5F311


   WASTE STREAM                        5F311            Other Facilities Decommissioning LLW


SITE                           Windscale

SITE OWNER                     Nuclear Decommissioning Authority

WASTE CUSTODIAN                United Kingdom Atomic Energy Authority

WASTE TYPE                     LLW

WASTE VOLUMES

Stocks:                        At 1.4.2007……………….                       0   m³
Future arisings -              1.4.2007 - 31.3.2010……              1578.3   m³
                               1.4.2010 - 31.3.2015…....           2630.4   m³
                               1.4.2015 - 31.3.2020…....           2630.4   m³
                               1.4.2020 - 31.3.2030…....           5260.9   m³
                               1.4.2030 - 31.3.2040…....                0   m³
                               1.4.2040 - 31.3.2060…....                0   m³
                               1.4.2060 - 31.3.2080…....                0   m³
                               1.4.2080 - 31.3.2100…….                  0   m³
                               Post-2100…………………                         0   m³
Total future arisings:                                            12100.0   m³
Total waste volume:                                               12100.0   m³

Comment on volumes:            Waste arisings are due to the decommissioning of several facilities and hence are not constant. There
                               has been significant change to the waste arisings volume since the 2004 inventory due to
                               reclassification of HVLA as LLW in NDA Accountancy template.
                               The volume may change significantly according to decommissioning, decontamination and
                               segregation techniques applied.


WASTE SOURCE                   Decommissioning waste from redundant facilities. These include PIE facilities, Redundant Flasks, and
                               Packaging plant.

PHYSICAL CHARACTERISTICS

General description:           Concrete, lead shielding bricks, pipework and redundant plant with small amounts of cellulosic and
                               plastic material. No large items have been identified.

Physical components (% vol):   Sufficient data is not available to characterise waste.

Bulk density (t/m³):           ~1.97

Comment on density:            The density varies depending on waste characteristics however, approx. 80% of the waste is concrete
                               (~1.8t/m³) with the remainder being largely steel with smaller quantities of lead.



CHEMICAL COMPOSITION

General description and        Steel (19%), lead (1%), concrete (80%).
components (%wt):

Chemical state:                 -

Chemical form of               H-3: As gas or tritiated water trapped within concrete matrix
radionuclides:
Chemical form of
radionuclides:              C-14: -
                            Se-79: -
                            Tc-99: -
                            Ra: -
                            Th: -
                            U: -
                            Np: -
                            Pu: -

Metals and alloys (%wt):    Insufficient data at present.

                            Stainless steel………….                   NE              Bronze…………………….
                            Other ferrous metals……               ~19.0             Inconel…………………….
                            Aluminium………………                          0             Nimonic…………………..
                            Copper……………………..                         0             Stellite…………………….
                            Lead………………………                         ~1.0             Boral……………………….
                            Zinc………………………                            0             Dural………………………..
                            Magnox/Magnesium.……                      0             Monel……………………..
                            Zircaloy……….……….                         0             Other metals (below)………
                            Brass……………………..                          0

                            Other metals:            Other metals include tungsten at <2% by weight.

Inorganic anions (%wt):     Inorganic anions present as constituents of concrete.
                            Fluoride……..…………….                    NE            Nitrate…………..………….
                            Chloride…………..………                     NE            Nitrite…………..………….
                            Iodide…..………………….                     NE            Phosphate……..………….
                            Cyanide…….…………..…                     NE            Sulphate………..………….
                            Carbonate………..………                       P           Sulphide………..………….

Listed substances:          Not yet determined. Only bulk metals, such as lead, expected to be present.

Hazardous and problematic   Hazardous materials are not expected to be present, but requires confirmation.
materials (%wt):

                            Combustible metals……                    NE             Strong oxidising agents…
                            Low flash point liquids…                  0            Pyrophoric materials……
                            Explosive materials………                    0            Generating toxic gases…
                            Phosphorus…………..…                         0            Reacting with water………
                            Hydrides………..………                          0            Asbestos…………......…
                            Putrescible wastes……                      0            Free aqueous liquids……
                            Biological etc. materials..               0            Free non-aqueous liquids..
                            Powder…………..………                           0

Complexing agents (%wt):    Not yet determined. Complexing agents are not expected to be present.
                            Complexing agents……       NE

Organics (%wt):             Small quantities (< 1%) of cellulose, in the form of Sisal Kraft Paper and wood, and plastic material will
                            be present.

                            Total cellulosics…………..…………                     <1.0
                               Paper, cotton………..……………                      <1.0
                               Wood…………..…………………                            <1.0
                            Halogenated plastics…………..……                    <1.0
                            Total non-halogenated plastics……                <1.0
                               Condensation polymers………..                    NE
                               Others…………..…………………                           NE
                            Organic ion exchange materials…….                  0
                                  Total rubber…………..………………                          P
                                     Halogenated rubber……..……                       P
                                     Non-halogenated rubber……..…                    P
                                  Other organics…………..…………                           0

Halogenated plastics              Halogenated plastics - PVC. Halogenated rubber - neoprene.
and rubber (%wt):

Other materials (%wt):            Any sludges found, e.g. in pipes, will be immobilised.
                                  Inorganic ion exchange materials……                  0
                                  Inorganic sludges and flocs……                    TR
                                  Soil……………..…………..…………                               0
                                  Rubble………...…………..…………                              0
                                  Concrete & cement…………..……                       80.0
                                  Glass………….…………..…………                                0
                                  Ceramics……….…………..………                               0
                                  Graphite………..…………..………                              0

LLW TREATMENT AND DISPOSAL

Status of waste:                  Routinely consigned to the LLWR.

Waste Stream Characterisation     The waste meets the LLWR's Conditions for Acceptance (CFA). The waste does not have a current
Document (WSCD):                  WSCD.



Waste consigned for               Yes.
disposal in year of
generation:


Treatments already                                                                              Waste treated
                                   Treatment
carried out:                                                                                      (%vol)
                                   Low force compaction
                                   Supercompaction (HFC)
                                   Incineration
                                   Encapsulation
                                   Other                                                           ~ 19.0
                                   None                                                            ~ 81.0

Comments on treatments already Other treatment is abrasion, the percentage of waste that undergoes abrasion is ~10 to ~19%.
carried out:                   Surface contaminated steelwork will where possible be sent to the on site wheel abrader with the
                               intent of producing a clean or exempt product.


Further treatments planned:                                                                     Waste treated
                                   Treatment
                                                                                                  (%vol)
                                   Low force compaction
                                   Supercompaction (HFC)
                                   Incineration
                                   Encapsulation
                                   Other
                                   None                                                             100.0

Comments on further treatments     -
:

Category of waste after further    Category
planned treatments :               High force compactable waste
                                   Uncompactable waste in disposal containers
                                  Large items for direct in-vault grouting
                                  Not yet determined

Comments on category of waste:    -



High Force Compactable Waste

Density bands:                                                                                                Waste (%vol)
                                  Waste density (t/m³)
                                                                                                 200-litre drums
                                  < 0.25
                                  0.25 - 0.5
                                  0.5 - 1.2
                                  > 1.2
                                  Not analysed by density

Other information:                -

Uncompactable Waste in Disposal Containers

Disposal container type:                                                                          Waste (%vol)
                                  Container
                                  Third height ISO
                                  Half height ISO                                                    <100.0
                                  4m LLW box
                                  2m LLW box
                                  Other

Inacessible voidage:             Inaccessible voidage will be <10%.

Other information:               The 11m³ loading volume for 1/2 hight ISO is for a 60% PE. The use of half height ISO containers will
                                 be considered for the denser items e.g. lead/steel in order to achieve an acceptable packing efficiency
                                 balanced against container weight limits.

Large Items For Direct In-Vault Grouting                 (Not applicable to this waste stream)

Bounding cuboidal volume (m³):    -



Inacessible voidage:              -

Other information:                -
RADIOACTIVITY

Source:                          Overall the waste contains contributions from activated products, e.g Co60, fission products, e.g
                                 Cs137 and U and Pu isotopes.

Accuracy:                         -

Definition of total alpha        Totals shown on table of radionuclide activities are the sums of the listed alpha or beta/gamma
and total beta/gamma:            emitting radionuclides plus 'other alpha' or 'other beta/gamma'.

Measurement of specific          Concrete coring has been undertaken in some areas, in other cases significant contamination is
activities:                      known but not yet fully characterised e.g. drains, cell/cave internals & roof areas.



Other information:                -
                                                 ID
                                                 5F311
ing LLW                                          5F311




l facilities and hence are not constant. There
since the 2004 inventory due to
 plate.
missioning, decontamination and



nclude PIE facilities, Redundant Flasks, and




plant with small amounts of cellulosic and




wever, approx. 80% of the waste is concrete
ler quantities of lead.




ix
                                 0
                                 0
                                 0
                                 0
                                 0
                                 0
                                 0
                              <2.0


<2% by weight.



                               NE
                               NE
                               NE
                               NE
                               NE

cted to be present.

equires confirmation.



                                 0
                                 0
                                 0
                               NE
                               NE
                               NE
                               NE


 to be present.


raft Paper and wood, and plastic material will
ne.




CFA). The waste does not have a current    #REF!



                                           #REF!
                                           #REF!




                           Volume change
                               factor




undergoes abrasion is ~10 to ~19%.
nt to the on site wheel abrader with the



                           Volume change
                               factor




                            Waste (%vol)
                                NE
                             < 100.0
                   Waste (%vol)
                                  Loose




                          Waste loading (m³)


                                  ~11.0




E. The use of half height ISO containers will
 to achieve an acceptable packing efficiency



am)




oducts, e.g Co60, fission products, e.g




ms of the listed alpha or beta/gamma
mma'.

 ther cases significant contamination is
  internals & roof areas.
WASTE STREAM                             5F311                 Other Facilities Decommissioning LLW



                           Average specific activity, TBq/m³                                          Average specific activity, TBq/m³

                     Waste at                                                                    Waste at
                                  Bands and         Future     Bands and                                      Bands and              Future    Bands and
Nuclide               1.4.2007      Code           Arisings      Code         Nuclide            1.4.2007       Code                Arisings     Code
H3                                                                         Ho 163
Be 10                                                                      Ho 166m
C 14                                                                       Tm 170
Cl 36                                                                      Tm 171
Ar 39                                                                      Lu 174
Ar 42                                                                      Lu 176
K 40                                                                       Hf 178n
Ca 41                                                                      Hf 182
Mn 53                                                                      Pt 193
Mn 54                                                                      Tl 204
Fe 55                                                                      Pb 205
Co 60                                                                6     Pb 210
Ni 59                                                                      Bi 208
Ni 63                                                                      Bi 210m
Zn 65                                                                      Po 210
Se 79                                                                      Ra 223
Kr 81                                                                      Ra 225
Kr 85                                                                      Ra 226
Rb 87                                                                      Ra 228
Sr 90                                                                6     Ac 227
Zr 93                                                                      Th 227
Nb 91                                                                      Th 228
Nb 92                                                                      Th 229
Nb 93m                                                                     Th 230
Nb 94                                                                      Th 232
Mo 93                                                                      Th 234
Tc 97                                                                      Pa 231
Tc 99                                                                      Pa 233
Ru 106                                                               6     U 232
Pd 107                                                                     U 233
Ag 108m                                                                    U 234
Ag 110m                                                                    U 235                                                                     6
Cd 109                                                                     U 236
Cd 113m                                                                    U 238                                                                     6
Sn 119m                                                                    Np 237
Sn 121m                                                                    Pu 236
Sn 123                                                                     Pu 238
Sn 126                                                                     Pu 239                                                                    6
Sb 125                                                                     Pu 240                                                                    6
Sb 126                                                                     Pu 241                                                                    6
Te 125m                                                                    Pu 242                                                                    6
Te 127m                                                                    Am 241                                                                    6
I 129                                                                      Am 242m
Cs 134                                                               6     Am 243
Cs 135                                                                     Cm 242
Cs 137                                                               6     Cm 243
Ba 133                                                                     Cm 244
La 137                                                                     Cm 245
La 138                                                                     Cm 246
Ce 144                                                               6     Cm 248
Pm 145                                                                     Cf 249
Pm 147                                                                     Cf 250
Sm 147                                                                     Cf 251
Sm 151                                                                     Cf 252
Eu 152                                                                     Other a
Eu 154                                                               6     Other b/g
Eu 155                                                                     Total a                      0                               NE
Gd 153                                                                     Total b/g                    0                               NE


Bands (Upper and Lower)                                                    Code
A a factor of 1.5                                                          1 Measured activity
B a factor of 3                                                            2 Derived activity (best estimate)
C a factor of 10                                                           3 Derived activity (upper limit)
D a factor of 100                                                          4 Not present
E a factor of 1000                                                         5 Present but not significant
                                                                           6 Likely to be present but not assessed
Note: Bands quantify uncertainty in                                        7 Present in significant quantities but not determined
        the average specific activity.                                     8 Not expected to be present in significant quantity

				
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