1. Presentation to the Environmental Health Sub-committee – November 2015
3 May 2019

2. Contents Contents Aerial Discharges Liquid Discharges Waste Disposals
Critical Group Dose
Permit
Summary
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3. Aerial Discharges
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4. Liquid Discharges
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5. Liquid Discharges
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6. Critical Group Dose
Summary of critical group doses in the vicinity of the LLWR (µSv)
Pathway
2008
2009
2010
2011
2012
2013
2014
Seafood consumption
0.01
Inhalation (adults)
0.49
0.34
0.33
0.36
0.41
0.37
Milk consumption (infants)
0.7
1.85*
0.47
0.77
0.28
All discharge pathways(infants)
1.2
2.19
0.9
0.66
0.62
Direct radiation 36 30 31 35 32
Total dose to critical group 37 33
UK average Annual dose from background radiation = 2200µSv .
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7. Waste Disposals
During containers of Low Level Waste were processed for emplacement in Vaults at LLWR.
If no diversion had taken place the indicative number of containers that would have needed to be disposed was an additional 717
Activity disposal, reported monthly to the EA, remains within the Permitted limits
Vault 9 remains in use for storage.
3 May 2019

8. ‘New’ LLWR Permit
Radioactive Substances Regulations (RSR) Permit varied – Issued 1st November 2015
Permits disposals in current and future disposal vaults
(Planning Application required to allow is this currently being determined)
Removes annual limits but introduces lifetime capacity
No longer defines the Statutory Environmental Monitoring programme – Full LLWR programme now covers
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9. Discharges are very low and significantly below historical limits
Summary
Discharges are very low and significantly below historical limits
Doses remain very low
Waste receipt continues to be managed safely
3 May 2019