On Sunday 16 March 2008, a pipe leak caused a spill of an estimated 400 tonnes of heavy fuel oil (IFO 380) during the loading of a vessel at Donges Refinery, Loire-Atlantique, France.
Cedre was mobilised on the afternoon of 16 March. Three technical advisers were immediately sent onsite to carry out pollution reconnaissance and to make recommendations on appropriate clean-up techniques.
On 19 March, an environmental assessment unit, composed of experts from various backgrounds, was set up at the Préfecture on 19 March to provide advice on response operations and set up scientific monitoring. The group included specialised agents from many different domains such as the protection of birds, veterinary medicine, maritime affairs and ecological organisations (National Office for Hunting and Wildlife, GIP Loire-Estuaire, Bretagne Vivante, LPO 44 (League for the Protection of Birds), Ifremer, the Botanic Conservatory of Brest, Bio-Littoral (environmental survey of rivers and estuaries), Nantes Veterinary School, DDASS, DDE, DIREN, Maritime Affairs and Cedre).
Recovery operations at sea and in the estuary were promptly organised. The recovery vessel Argonaute was mobilised at the mouth of the Loire River with a trawl net. Two trawlers collected tar balls in the estuary. Several pollution response booms were set up, especially to protect streams.
On 17 March, the French Minister of Ecology, Energy, Sustainable Development and Planning visited the site to assess the situation. He announced that Total would cover all the damages and expenses caused.
Almost 750 people (civil security, fire service and private service providers) were rapidly mobilised to clean up the river banks. The waste collected was centralised and treated at Donges Refinery.
Several meetings were held between professionals from the area (shellfish collectors, salt marsh workers, eel fishermen…) and Total in order to define the procedure of listing the damages.
On 17 March, a ban was introduced on sea fishing, by both professionals and amateurs, as well as on marine culture activities and the sale of aquaculture produce. Ifremer and the French Department of Health were put in charge of regularly sampling shellfish in order to monitor any possible contamination. The ban was partially lifted on 4 April 2008 for professional and pleasure fishing from boats off the estuary. The ban on other forms of fishing and on shellfish collection was lifted on 17 April for the seashore and on 18 April for the river banks.
Observations conducted by the ONCFS and LPO showed that the proportion of oiled birds decreased as the response operations advanced. A count of birds affected was carried out.
Deposits of oil were reported on the agricultural ground bordering the Loire river. Usually these pasturing grounds are used from April onwards. Toxicological experts from the Veterinary School of Nantes were consulted in order to determine when the animals could return to their pastures.
Name: Donges Refinery
Date: 16 March 2008
Accident area: Donges, Loire-Atlantique
Cause of spill: wear
Type of pollutant: heavy fuel oil (IFO 380)
Quantity spilled: 400 tonnes (estimation)
Structure type: pipeline
Factual information on response operations and opinions on the impacts are available on the websites listed below. The text below therefore focuses on Cedre’s involvement.
Cedre’s involvement is ensured by rotating the personnel onsite (4 people permanently present) with support from the Reponse Centre in Brest collects and processes the information and draws up maps and summaries.
Cedre has been carrying out onsite surveys, identifying polluted areas and producing reports and technical notes. They are participating in the group of environmental experts concerning the response options to implement and the impact study. At the clean-up sites, they have been providing operational advice on the response techniques to use in order to preserve the fragile areas of the estuary (banks, streams, mudflats, reed beds).
Samples were sent to Cedre’s laboratory for analysis of the pollutant. In this way, the oil washed up on the shoreline of the Vendée and Charente regions was identified as that from the refinery, confirming the results of backtrack drift simulations conducted by Météo France.
The Attorney General of Nantes also called upon Cedre to conduct analyses for legal purposes.
Furthermore, Cedre has been replying to many questions from journalists on the technical aspects related to the spill.
The damages are to be assessed by a consultancy firm based in Nantes, commissioned by Total in order to assess the damages incurred. Four groups of marine-related occupations have been identified: fishing from a boat, professional shellfish collecting, shellfish breeding and fish merchants. Around 200 businesses related to sea fishing and marine cultures are concerned by these actions.
The Prefect decided to create a “Local Estuary Information Commission” to examine the necessary measures to protect the estuary in the event of an accidental pollution incident. All those involved with the estuary (State services, local MPs, economic and industrial activities, nature conservation associations) are associated with the commission. The first meeting is to be held mid-May.
Last update: 30/04/2008