Sentencia del Tribunal Superior de Justicia de Asturias de 9 de octubre de 2025 (Sala de lo Contencioso-Administrativo, Sección 1, Luis Alberto Gómez García).

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Title: Sentencia del Tribunal Superior de Justicia de Asturias de 9 de octubre de 2025 (Sala de lo Contencioso-Administrativo, Sección 1, Luis Alberto Gómez García).
Authors: Pascual Núñez, María1
Source: Actualidad Jurídica Ambiental. mar2026, Issue 165, p215-223. 9p.
Subject Terms: *Environmental law, *Hydroelectric power plants, *Water supply, *Riparian areas, Expert evidence, Historic sites, Courts, Instream flow
Abstract (English): The ruling of the Superior Court of Justice of Asturias dated October 9, 2025, addresses the termination of a hydroelectric concession granted in 2002 for the use of 15,000 liters per second from the Saja River, due to the repeated failure to comply with the required ecological flow, caused by the blockage of the bottom outlet of the weir. The court confirms that respect for the ecological flow is an essential condition of the concession, whose breach justifies its expiration, especially when an economic benefit for the concessionaire is evident. Furthermore, the importance of critically evaluating expert evidence and the presumption of truthfulness of the reports from Environmental Agents—officials authorized to inspect and report violations—is emphasized. Finally, the obligation to demolish the works located within the hydraulic public domain after the termination of the concession is upheld, despite the initiation of proceedings to declare the area a Site of Cultural Interest, with the resolution of possible regulatory conflicts remaining outside the scope of the litigation. [Extracted from the article]
Abstract (Spanish): La sentencia de autos resuelve el recurso contencioso-administrativo interpuesto por una mercantil contra la Confederación Hidrográfica del Cantábrico (CHC), siendo codemandado el Ayuntamiento de Reocín, en relación con la extinción de la concesión para el aprovechamiento hidroeléctrico de 15.000 l/s de agua del río Saja. La concesión, otorgada en 2002 por cuarenta años, fue declarada extinguida por la CHC tras constatar, en 2022, el incumplimiento reiterado de los caudales ecológicos exigidos, debido a la obturación del desagüe de fondo del azud; situación que la Sala considera no subsanada por la parte recurrente. [ABSTRACT FROM AUTHOR]
Copyright of Actualidad Jurídica Ambiental is the property of CIEMAT, through its Centro Internacional de Estudios de Derecho Ambiental (CIEDA) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Sentencia del Tribunal Superior de Justicia de Asturias de 9 de octubre de 2025 (Sala de lo Contencioso-Administrativo, Sección 1, Luis Alberto Gómez García).
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  Data: <searchLink fieldCode="AR" term="%22Pascual+Núñez%2C+María%22">Pascual Núñez, María</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Actualidad+Jurídica+Ambiental%22">Actualidad Jurídica Ambiental</searchLink>. mar2026, Issue 165, p215-223. 9p.
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  Data: *<searchLink fieldCode="DE" term="%22Environmental+law%22">Environmental law</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydroelectric+power+plants%22">Hydroelectric power plants</searchLink><br />*<searchLink fieldCode="DE" term="%22Water+supply%22">Water supply</searchLink><br />*<searchLink fieldCode="DE" term="%22Riparian+areas%22">Riparian areas</searchLink><br /><searchLink fieldCode="DE" term="%22Expert+evidence%22">Expert evidence</searchLink><br /><searchLink fieldCode="DE" term="%22Historic+sites%22">Historic sites</searchLink><br /><searchLink fieldCode="DE" term="%22Courts%22">Courts</searchLink><br /><searchLink fieldCode="DE" term="%22Instream+flow%22">Instream flow</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: The ruling of the Superior Court of Justice of Asturias dated October 9, 2025, addresses the termination of a hydroelectric concession granted in 2002 for the use of 15,000 liters per second from the Saja River, due to the repeated failure to comply with the required ecological flow, caused by the blockage of the bottom outlet of the weir. The court confirms that respect for the ecological flow is an essential condition of the concession, whose breach justifies its expiration, especially when an economic benefit for the concessionaire is evident. Furthermore, the importance of critically evaluating expert evidence and the presumption of truthfulness of the reports from Environmental Agents—officials authorized to inspect and report violations—is emphasized. Finally, the obligation to demolish the works located within the hydraulic public domain after the termination of the concession is upheld, despite the initiation of proceedings to declare the area a Site of Cultural Interest, with the resolution of possible regulatory conflicts remaining outside the scope of the litigation. [Extracted from the article]
– Name: Abstract
  Label: Abstract (Spanish)
  Group: Ab
  Data: La sentencia de autos resuelve el recurso contencioso-administrativo interpuesto por una mercantil contra la Confederación Hidrográfica del Cantábrico (CHC), siendo codemandado el Ayuntamiento de Reocín, en relación con la extinción de la concesión para el aprovechamiento hidroeléctrico de 15.000 l/s de agua del río Saja. La concesión, otorgada en 2002 por cuarenta años, fue declarada extinguida por la CHC tras constatar, en 2022, el incumplimiento reiterado de los caudales ecológicos exigidos, debido a la obturación del desagüe de fondo del azud; situación que la Sala considera no subsanada por la parte recurrente. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Actualidad Jurídica Ambiental is the property of CIEMAT, through its Centro Internacional de Estudios de Derecho Ambiental (CIEDA) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Code: spa
        Text: Spanish
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        PageCount: 9
        StartPage: 215
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      – SubjectFull: Environmental law
        Type: general
      – SubjectFull: Hydroelectric power plants
        Type: general
      – SubjectFull: Water supply
        Type: general
      – SubjectFull: Riparian areas
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      – SubjectFull: Expert evidence
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      – SubjectFull: Historic sites
        Type: general
      – SubjectFull: Courts
        Type: general
      – SubjectFull: Instream flow
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      – TitleFull: Sentencia del Tribunal Superior de Justicia de Asturias de 9 de octubre de 2025 (Sala de lo Contencioso-Administrativo, Sección 1, Luis Alberto Gómez García).
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              Text: mar2026
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              Y: 2026
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