In the Nineties, the deliberate closure of Alsace’s potash mines gave rise to the thought of storing hazardous waste in galleries dug into the rock salt at a depth of round 550m beneath the city of Wittelsheim, close to Mulhouse. ‘Again then, there was a have to repurpose mining websites,’ says Frédéric Bierry, present President of the European Collectivity of Alsace, an administrative area created from a merger of the Haut-Rhin and Bas-Rhin departments.
In 1997 the prefect of Haut-Rhin authorised the StocaMine firm, a now defunct subsidiary of the general public firm Mines de Potasse d’Alsace (MDPA), to handle the ‘reversible underground storage of commercial waste’ that was non-radioactive, stable, inert and non-flammable. The authorisation permitted the burial of 320,000 tonnes within the Joseph Else mine. Between 1999 and 2002, 44,000 tonnes of waste had been steadily saved in blocks of purpose-built galleries. ‘The federal government gave an enterprise that storage can be strictly managed and reversible, pending the event of future applied sciences that will allow the therapy of those supplies,’ says Jean Rottner, president of the Grand Est area, of which Alsace is a component.
However then, between 10 September and 21 November 2002, a fireplace ravaged block 15, which contained 1,775 tonnes of waste, poisoning 76 staff. The hearth led to the burial of waste being suspended after which deserted the next yr. A judicial inquiry discovered that probably self-igniting supplies had been buried on the energy of incomplete identification sheets, constituting ‘severe and repeated failings’ that ‘mirror[ed] the need to just accept at any value’ substances of natural origin and fertiliser residues from the Solupack firm. The positioning director had breached the protection necessities, ignoring warnings from workers, his deputy and the labour inspectorate. On 15 April 2009 he was convicted on enchantment for ‘endangering others’, as was StocaMine as a authorized entity.
Beneath the Rhine water desk, one of many largest in Europe, lies a time bomb that worries native residents in Alsace and their Swiss and German neighbours. François Zind, a lawyer for the Alsace Nature organisation, says, ‘The official estimate is that there are 26 tonnes of mercury, 1,747 tonnes of arsenic, 33 of cadmium, 32 of chromium, 250 of lead and 100 of antimony [stored in the mine]; 50 pollution have been recognized, most of them soluble in water and brine.’
The state has not stored its promise that the storage of hazardous waste ought to be reversible. Even when recognized as harmful, the waste has remained deeply buried, although pressing motion is critical to retrieve it. Galleries dug in potash have a pure tendency to contract, which means they’ll develop into inaccessible sooner or later between 2027 and 2029, in accordance with stories, and collapse a number of years later. Then, in accordance with France’s Geological Survey, the Bureau de Recherches Géologiques et Minières (BRGM), progressive flooding may dissolve soluble supplies and carry contaminated brine into the water desk 500m above (1).
The federal government, which was strongly criticised in 2014 by the Courtroom of Auditors for its failure to behave, produced a number of knowledgeable stories selling its favoured answer: on-site containment in a concrete enclosure. Following an modification proposed by Michel Sordi, the member of the Nationwide Meeting for Haut-Rhin, the environmental code had been modified in 2004, two years after the fireplace. Thereafter hazardous supplies may very well be saved underground with out restrict ‘if the enter of waste had ceased a couple of yr earlier’.
Beneath stress from the general public and politicians on all sides, the federal government agreed to extract essentially the most poisonous waste; 95% of the mercury was eliminated between 2015 and 2017. Of the remaining 42,000 tonnes of waste, 25% remains to be soluble, ‘with a danger to the consuming water provide — the one criterion thought of by the state — talked about in quite a few stories, but in addition attainable impacts on your entire meals chain linked to floor water, as nearly all of this waste is endocrine disruptors,’ Zind says.
In keeping with BRGM, the price of this challenge — which comes on high of an annual value of €5m since 2002 — varies in accordance with what interventions precede containment: €87m if there isn’t any additional extraction; €246-307m with the elimination of soluble waste solely; and €379-440m for the elimination of all waste. The federal government claims these final two eventualities are too costly and too harmful, and nonetheless backs the everlasting containment of the remaining waste. Bierry opposes this: ‘In Decrease Saxony, an identical state of affairs ultimately led the German authorities to take away every thing urgently, which value €2bn. We have now no long-term assure if the water degree rises, and we’re speaking right here about containing subsoil on a seismic fault line. This isn’t appearing responsibly in direction of future generations.’
The state is engaged in a race with the legislation. Alsace Nature and the native authorities went to the executive courtroom of enchantment in Nancy, which annulled the prefectoral decree on 15 October 2021, basically over the absence of economic ensures, thereby blocking the containment work that was resulting from begin that day. Nonetheless, an modification quietly handed by the Nationwide Meeting a month later permitted the state to present monetary ensures to MDPA and once more authorised containment for an ‘limitless interval’. On 28 December the Constitutional Council censured this measure, which it thought of a ‘non-financial legislative provision’.
On 28 January 2022 the prefect of Haut-Rhin issued an additional order authorising work to renew and opening the best way for a brand new authorisation software after a public inquiry. Rottner is disenchanted by the federal government’s intransigence: ‘The native authorities have been attempting to speak to them for years and we’ve even discovered industrialists with options… We naturally find yourself questioning why there’s such a scarcity of transparency and session.’
In January 2021 a go to from the minister for ecological transition, Barbara Pompili, raised hopes that discussions would possibly start. ‘We alerted her to the clear future danger. A month later, the federal government merely confirmed its want to comprise the location as is. We face incomprehensible stubbornness,’ says Stéphane Giraud, director of Alsace Nature. Along with the various French and European specialists calling for the waste to be eliminated, some miners at the moment are saying there may be nonetheless time to intervene. As the federal government initially dedicated to reversible storage of the waste, individuals’s religion in its phrase can also be on the road.