ORGANISATION · FR · NACE 84.13 Regulation of and contribution to more efficient operation of businesses (nuclear safety)
Autorité de sûreté nucléaire et de radioprotection (ASNR)
www.asnr.fr · 1 documented exposure in the atlas.
Meuse low flow at Chooz, the 1998 Franco-Belgian flow thresholds and the two Chooz nuclear units, July–November 2026
Adjacent · Operational, local · evidenced · Low water, 2026-08-01
“consécutifs, est inférieure à 20 m3/s, le débit évaporé pendant le treizième jour sera nul” — source, 2026-11-12
Decision 2009-DC-0164 of 17 November 2009, taken by the Autorité de sûreté nucléaire (the body the ASNR succeeded), sets in annex 1, article 4-II the rule the operator applies at Chooz: at most 2.1 m3/s evaporated by the two units as a daily mean, 5% of the river flow when the 12-day mean downstream of the site is between 20 and 22 m3/s, nil under 20 m3/s, and nil at or under 14 m3/s as a daily mean save duly reasoned exceptional circumstances. The rule bears on evaporated water, not on a number of units. The amending decisions of 2017 and 2023 were not read by the mapper, and no regulator notice on the 2026 stops themselves was found; its inspection letter of 30 July 2026 deals with fuel and reactivity control.
Series concerned: meuse-chooz-flow-12d-mean-m3s grand-est-nuclear-output-mw · read the edition →
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