In order to secure beyond 2026 capacity for the treatment and disposal of hazardous wastes and LLW to serve local, regional and national needs, Augean is proposing to construct an additional landfill void of approximately 2.5 million cubic metres to the west of the currently operated site.
80 per cent of the wastes accepted at the waste treatment and recovery facility and over 98 per cent of the waste accepted at the site for landfill over the last five years comes from the East Midlands, West Midlands, East of England, Greater London and South East regions. No new hazardous waste landfill facilities have been developed in these areas since the current waste management activities at ENRMF were authorised in 2013.
While the implementation of the hierarchy of waste means that generally less waste will be landfilled directly, the treatment of waste results in increasing amounts of residues many of which are hazardous and can only be landfilled. National strategies for the management of hazardous wastes recognise that where there is no better recovery or treatment option, landfill is the end point and the best available technique. The Government LLW policy likewise recognises that after the application of the waste hierarchy principles, final landfill disposal is the safe end point for LLW.
The other elements of the proposed development are:
- The construction of new landfill void for the continued disposal of the same range of predominantly hazardous wastes and a limited amount of low level radioactive waste (LLW) as deposited at the existing ENRMF with a capacity of greater than 100,000 tonnes per annum (tpa) of hazardous waste.
- A proposal for a coherent landform for the restoration of the existing landfill and the proposed western extension resulting in the construction of new landfill void in the existing landfill to connect with the proposed western extension with a capacity of greater than 100,000 tonnes per annum (tpa) of hazardous waste.
- A total additional landfill void to be constructed of approximately 2.5 million cubic metres.
- The winning and working of minerals in order to create the landfill void and provide extracted materials for use on site as well as the exportation of clay and overburden for use in engineering, restoration and general fill at other sites.
- The temporary stockpiling of clay, overburden and soils for use in the construction of the engineered containment system at the site and restoration of the site.
- The direct input of waste into the existing landfill and the proposed western extension will continue at a rate of up to 150,000 tpa.
- An increase to the hazardous waste throughput of the existing waste treatment and recovery facility from 200,000tpa to 250,000tpa which comprises an increase of 50,000tpa compared with the rate consented in the existing DCO and the extension of the treatment area to the south while remaining within the existing ENRMF footprint.
- A combined total waste importation rate limit to site for the proposed development of 300,000tpa which is an increase of 50,000tpa compared with the rate consented in the existing DCO.
- The LLW which will continue to be disposed of at the ENRMF and will be disposed of in the proposed western extension will be limited to that which is at the lower end of the activity range and typically will have a level of radioactivity of up to 200 Bq/g.
- The diversion of the overhead electricity cable that crosses the proposed western extension.
- The operational hours of the site will not change from those already consented.
- Restoration of the whole site to generally domed profiles to create a coherent restoration landform.
- Restoration of the site to improved biodiversity and nature conservation interest using the soils available at the site as well as suitable imported materials. The site will be restored to a mosaic structure of woodland with shrubby edges, flower meadow grassland, scattered trees, hedgerows and waterbodies.
- Completion of the landfilling and restoration operations by December 2046 and removal of the Existing Waste Treatment and Recovery Facility.
- Retention of infrastructure until 2046 and the retention of long term management infrastructure beyond this date.