SANITATION AND WASTEWATER TREATMENT

Direct grant of subsidies for the development of complementary sanitation and wastewater treatment measures

Grants totaling €20 million have been awarded to the municipalities of Cartagena, San Javier, Los Alcázares, San Pedro del Pinatar, Fuente Álamo, Murcia, Torre Pacheco, and La Unión. The aim is to improve sanitation and wastewater treatment systems, thereby enhancing wastewater management and improving their sewer networks.
This funding will improve wastewater management for more than 224,683 residents and upgrade 19,434 meters of sewer pipe. The grants, disbursed in December 2022, had a 36-month implementation period.

→ Latest developments

• The grant justification phase is underway. An extension for the completion of the works was approved in July 2025.
• Of a total of 52 projects, 47 have already been executed, 4 are currently in execution and 1 is in process.

New grant program for complementary sanitation and wastewater treatment measures

The actions carried out by the municipalities with the subsidies obtained for sanitation and wastewater treatment through Royal Decree 730/2022 have contributed to reducing the discharge of pollutants and nutrients into the lagoon. To ensure the continued funding and implementation of these actions and further contribute to the improvement of the Mar Menor, new subsidies will be granted to the same municipalities, prioritizing stormwater separation and sustainable drainage systems. A total of €20 million has been allocated for this purpose.

→ Latest developments

In December 2025, the transfer to the municipalities was carried out, following the approval of the subsidies by the Council of Ministers (25/11/2025), their subsequent publication in the BOE (28/11/2025) and the authorization and commitment of the expenditure by the Secretary of State for the Environment (16/12/2025).