Document library

9G105 - Reactor LLW
This waste stream captures decommissioning activities and wastes arising in the Reactor Buildings.

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | LLW

9G106 - Ponds LLW
The Ponds waste stream captures plant, equipment, structural materials and secondary waste arising from decommissioning of the wet fuel route.

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | LLW

9G107/C - Ion Exchange Material
Ion exchange materials retrieved from storage tanks (resin vault 3) and solidified in the solidification plant at Trawsfynydd (campaign 8).

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | ILW

9G109 - Pond Scabbling Wastes
This waste stream captures plant, equipment and structural materials and secondary wastes generated from pond scabbling operations.

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | LLW

9G112 - Redundant Sealed Sources
Redundant sealed sources used for a variety of purposes around the site.

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | LLW

9G113 - CDVAR Plates
The Cold Duct Valve Actuating Room (CDVAR) Plates were previously included in waste stream 9G64. This material has now been identified and characterised and will be disposed of as LLW via a new separate fingerprint. The CDVAR plates are named after the location in which they were stored following their removal as insulation retaining plates around the cold ducts in and around the bio-shield penetration. They were activated by neutron leakage or streaming in a low flux for the life of the reactor.

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | LLW

9G118 - Active Drains
The 9G118 waste stream captures disposal of pipework along with some contaminated sludges. It also contains waste from the oil separator in the Ponds area which contains two chambers, East and West.

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | LLW

9G121 - Active Drains (Final Delay Tank)
The Active Drains are a system across the active site areas (i.e. reactor buildings and Ponds complex), designed to collect spillages, surface waters and other contaminated effluent and route it, via the Active Drains Tank (ADT), to the Active Effluent Treatment Plant (AETP) for treatment prior to discharge to Llyn Trawsfynydd. The Active Drains have collected effluents over the generating, defueling and decommissioning phases and thus have a spectrum of contamination including activation and fission products. This waste stream was created to capture waste associated with “System 3” consisting of the manholes and connections associated with the pipework between the Final Delay Tank (FDT) and discharge point at manhole MH430.

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | LLW

9G124 - Loose Particulate Waste North and South FED vaults
This waste arises from the 32 FED vaults (16 North and 16 South) and is FED dust from the base of the vault.

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | ILW

9G129 - Active Waste Vaults ILW

Nuclear Restoration Services Ltd (NRS) | Trawsfynydd | ILW