Supreme Court Annuls Irrigation Limits in Campo de Cartagena: What Changes for Irrigators

Key data

Irrigators in Campo de Cartagena achieve a major legal victory: the Supreme Court has declared null the reference to irrigation surfaces in irrigable zones contained in article 13.13.ºd) of the Segura Hydrological Plan and in the corresponding annex and appendix 03. The ruling, issued on September 17, 2026 and published in the BOE on October 16, 2026, is final and does not admit appeal.

The decision resolves administrative contentious appeal 425/2023, filed by the Irrigation Community of Campo de Cartagena against Royal Decree 35/2023, of January 24, which approved the revision of hydrological plans for several demarcations, including the Segura.

What does this ruling establish?

The Third Chamber of the Supreme Court partially grants the appeal of the Irrigation Community of Campo de Cartagena. The ruling has two direct and immediate consequences:

• Nullity of article 13.13.ºd) of the Segura Hydrological Plan: the reference to irrigation surfaces in irrigable zones established by that provision is voided.
• Nullity of the corresponding annex and appendix 03: the technical documents that specified and quantified those surface limitations are also annulled.

The ruling is partial: the decision does not annul Royal Decree 35/2023 in its entirety nor the Segura Hydrological Plan as a whole, but exclusively the provisions that imposed surface restrictions on irrigators in this area.

Being final, the Administration is obligated to adapt the hydrological plan by eliminating the provisions declared null. There is no possibility of appeal that could paralyze or reverse this effect.

Economic and operational impact

Campo de Cartagena is one of Spain's most productive agricultural areas, with strong dependence on the Tajo-Segura transfer. The surface limitations now annulled directly conditioned crop planning, investment in irrigation infrastructure, and the expansion capacity of farms.

With the declared nullity, the most relevant operational effects are:

• Disappearance of irrigable surface caps that the plan imposed on irrigable zones in Campo de Cartagena.
• Greater agricultural planning freedom: farmers and irrigation communities can review their crop plans without being subject to those restrictions.
• Administration's obligation to adapt the plan: until that formal adaptation occurs, the annulled provisions cannot be applied or invoked against irrigators.
• Possible review of proceedings in which authorizations had been denied or limited based on the now-null provisions.

From a legal perspective, the finality of the ruling prevents any administrative maneuver to maintain the validity of the annulled provisions. The Administration cannot "ignore" the ruling: it is obligated to execute it.

Who does it affect?

• Irrigation communities in Campo de Cartagena: primary direct beneficiary of the ruling.
• Individual farmers with farms in the Segura basin who were subject to the annulled surface limitations.
• Segura River Basin Authority: obligated to adapt the Hydrological Plan by eliminating null provisions.
• Ministry for Ecological Transition and Demographic Challenge: responsible for the revision of Royal Decree 35/2023 in the affected part.
• Legal and technical advisors of agricultural farms in the area, who must review the impact on ongoing proceedings or previous resolutions based on the annulled provisions.

Practical example

An irrigation community in Campo de Cartagena that had a pending request for irrigation surface expansion, denied or limited by the Administration based on article 13.13.ºd) of the Segura Hydrological Plan or appendix 03, can now:

1. Invoke the nullity declared by the Supreme Court ruling of September 17, 2026 to challenge that administrative resolution.
2. Request review of the proceeding, given that the legal basis for the denial has been voided.
3. Require the Segura River Basin Authority to process the request without applying the annulled provisions.

Similarly, an individual farmer who had adjusted their crop planning to the plan's surface limitations can reconsider their production strategy without being conditioned by those restrictions, pending the Administration's formal adaptation of the plan.

What should irrigators do now?

1. Review ongoing administrative proceedings: identify if any irrigation expansion or authorization request was denied or limited based on article 13.13.ºd) or appendix 03 of the Segura Hydrological Plan.
2. Consult with a legal advisor specialized in water law to assess whether it is appropriate to challenge previous administrative resolutions based on the now-null provisions.
3. Communicate with the Irrigation Community of Campo de Cartagena to learn about collective actions being coordinated following the ruling.
4. Monitor the formal adaptation of the Segura Hydrological Plan: the Administration must eliminate the annulled provisions. It is advisable to monitor the BOE to learn when that official adaptation occurs.
5. Do not apply or accept application of the annulled provisions: from the finality of the ruling (September 17, 2026), article 13.13.ºd) and appendix 03 lack legal validity.

Official source

Consult complete regulation in official source

Notice: This article is purely informational in nature and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-21528