Decommissioning
 
After the shutdown of the plant, between 1987 and 1991, the fuel was removed from the reactor building, via the handling and loading system, which was subsequently dismantled. In 2006, the lower pipelines of the reactor building were dismantled and removed.
 
In 2007, the new dosimetry laboratory responsible for procurement, preparation and reading of the dosimeters assigned to Sogin plant operators was built.
 
In 2008, demolition of the internal structures of the turbine and diesel buildings and the external blower rooms was completed.
 
In 2009, upgrading of the material release station, where the materials produced by dismantling are analysed before their release as conventional waste, and, in 2010, that of the sea water circulation line were completed.
 
In 2011, dismantling of the upper pipelines of the primary plant circuit was completed.
 
In September 2011, after just 40 days from the start of operations, demolition of the central pier was completed, a result achieved thanks to the commitment of all the technicians who worked with the site open 24 hours a day. The works included removal of the beams and subsequently cutting the pillars of the pier, a 750 metre long reinforced concrete structure. The technologies used allowed the work to be carried out without losing any fragment of the structure in the sea or in the environment. Demolition of the pier has contributed to providing the Pontine coastline with a cleaner sea and has allowed citizens to once again use the coast and the sea in front of the plant.
In October 2011, the Environmental Compatibility Decree (EIA) for decommissioning of the plant was issued, with joint signatures of the Ministries of the Environment and Protection of the Land and Sea and of the Cultural Heritage and Activities.
 
In December 2012, the dismantling works, started in August 2012, of the turbine building of the plant, a 128.5 metre long, 35.5 metre wide and 24 metre high reinforced concrete structure, which during operation housed the plant turbines, were completed. The demolition of the structure, with a volume of 120,000 cubic metres, produced 14,400 tons of cement.
 
The reinforced concrete platform in the area where the turbine building was located and upgrading of the decontamination room have been completed.

In 2016, works for removal of the boiler blower casings have been completed and the works for the Cutting Facility Building have been started up.

Works for the waterproofing of building lots A and C will be started up within the end of 2016.​

The procedure for awarding the contract for construction of the new radioactive liquid effluent treatment system, called Radwaste, is currently in progress.
 
For the Latina plant, the plans envisage conclusion of the first decommissioning phase in 2026, with dismantling of the infrastructure and lowering of the reactor building from the current 50 to 30 metres.
Having reached this first phase, the radioactive waste, already conditioned and stored in the temporary repositories the site, will be ready to be transferred to the National Repository.
The second and final decommissioning phase concerns the dismantling of the plant reactor which, among other things, will produce approx. 2000 tons of high activity radioactive waste (graphite). 
With the availability of the National Repository, all the radioactive waste will be removed and the site will then be returned to the green field state, i.e. in a condition free of radiological restrictions, which will allow its reuse.

Waste management and safety measures
 
Construction of a temporary radioactive waste repository to safely store only the waste from plant operations and decommissioning activities, pending its transfer to the National Repository, has been completed. In July 2014, testing and inspection of the storage systems for the purposes of obtaining the operating license from ISPRA, which issued a favourable opinion in December 2014, have been terminated.
 
Main characteristics of the D1 temporary repository
Total volume: approx. 25000 m3 
Net storage capacity: 2500 m3 of radioactive waste
Surface area: 2000 m²
 
The site also has another repository for temporary storage of the waste present.
Main characteristics of the low activity temporary repository
Total volume: approx. 3700 m3
Net storage capacity: approx. 1700 m3 of radioactive waste
Surface area: 920 m²
 
On completion of transfer of waste to the National Repository, all temporary repositories will be demolished.
 
Construction works of the facility where the radioactive sludge and splitters produced during plant operation will be processed and cemented are in progress.
 
At the end of 2017, the volume of radioactive waste present at the Latina site is equal to 1.739 m3. The volume may vary from year to year as securing and decommissioning activities and treatment and conditioning of previous waste proceeds.
The inventory of radioactive waste at 31 December 2015 meets the new classification defined by the Ministerial Decree of 7 August 2015.
Quantity (in cubic metres) of radioactive waste, divided by type, present at the Latina plant as at 12/31/2017
TYPE OF WASTE

Very short lived

Very low level Low level Intermediate level High level

0 m3 887 m3 821 m3 31 m3 
m3 
TOTAL
QUANTITY
1.739 m3
 
 
 
Fuel management
In the early nineties, all the plant’s fuel was removed and transferred to England for reprocessing.
The reprocessing waste will return to Italy to be temporarily transferred to the National Repository.​

Environment
 
To ensure environmental sustainability, all interventions are designed, implemented and monitored so as not to produce any impact, neither radiological nor conventional, on the environment.
 
Sogin manages a complex environmental radiological surveillance network and monitors, with continuous and programmed checks, the quality of the air, soil, groundwater and sea water, of marine sediments and those of the nearby canal, of the sand, fauna of the sea of the coastline in front of the plant, as well as of the main local agrifood products: milk, fruit and vegetables. The environmental radiological monitoring network was established at the time of construction of the nuclear plants.
 
Every year, Sogin systematically carries out hundreds of measurements on the food and environmental matrices that constitute the environmental monitoring network. ARPA Lazio carries out similar monitoring and surveillance activities with its own network.
The results of the analyses and the values of the discharge formulas have always confirmed radiologically insignificant environmental impacts. The monitoring results are sent to the Italian nuclear Authority and made public, also through our Sustainability Report.
 
In October 2011, the EIA Decree envisaged, with three specific provisions, that Sogin should also carry out conventional environmental monitoring alongside the existing radiological monitoring. Immediately after the issue of the decree, Sogin planned and supplemented the existing network to start the conventional monitoring program.
In autumn 2013, Sogin started the local area characterisation sampling programme. These initial analyses highlighted anomalous values of the concentration of vinyl chloride in three samples of surface ground water. This was immediately communicated to the Authorities and other interested bodies and, on 2 August, a press release was issued.
 
Sogin immediately activated a rigorous process to establish the causes and extent of the event. The values measured were not attributable to the decommissioning activities, since analytes extraneous to the production cycle of the nuclear power plant were identified. At the moment, Sogin is proceeding with further investigation and analyses, also upstream of the plant, as required by the characterisation plan approved in the Services Conference of March 2014.
 
Nuclear power plant history
 
The Latina nuclear power plant is a plant built with British GCR Magnox graphite gas-technology. Its construction by Eni began in 1958.
After just five years, in May 1963, first among the Italian nuclear power plants, it started to produce electricity, with a capacity of 210 MWe, which made it, at the time of entry into service, the largest nuclear power plant in Europe.
 
In December 1964, its ownership was transferred to Enel and its activity was stopped in 1987, following the nuclear power referendum. Since then, safety of the facilities and systems to protect the population and the environment has been guaranteed.
 
In its lifetime, the plant produced a total of 26 billion kWh of electricity.
In 1999, Sogin became the owner of the plant with the aim of completing its decommissioning and returning the site to the local area, free from radiological constraints.
 
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