Tenerife Completes Construction of €30 Million Montaña Reverón Wastewater Plant

The completion of the Montaña Reverón facility in Arona marks a major step forward for water management in Tenerife. According to the state-owned company Acuaes, the construction of this plant is finished, helping the island address its long-standing issues with sewage treatment. This is a vital development, as Tenerife’s coastline has historically been the primary source of European Commission sanctions against Spain for untreated wastewater.

The 30-million-euro facility is designed to process 24,000 cubic meters of water per day, serving more than 100,000 people. It is a strategic project for the local tourism industry, covering high-density areas including Las Galletas, Costa del Silencio, El Fraile, Las Chafiras, Amarilla Golf, and Golf del Sur in the municipalities of Arona and San Miguel de Abona.

While construction is complete, the plant is not yet operational. Final steps include finishing the electrical connection and a 100-meter pipeline to transport treated water to the San Lorenzo reservoir and the land-based outfall. This project is part of a larger 233.5-million-euro agreement between Acuaes and the Cabildo de Tenerife, with 67% of the work now complete. The broader network already includes 48 kilometers of piping and several pumping and treatment stations at key locations like Guaza, Malpaso, Tamaide, and the Uchoba ravine.

Tenerife aims to fully treat its 62.5 million cubic meters of annual wastewater by 2027. Progress has accelerated following the opening of the Los Letrados and West plants this past February. These additions have pushed the island’s treatment capacity above 50%, a significant improvement from the 40% recorded in 2019.

Once fully active, the Montaña Reverón plant will use solar sludge drying technology, which manages waste efficiently through natural radiation and ventilation. This will be the island’s ninth treatment plant, joining existing facilities in Santa Cruz, Adeje-Arona, Güímar, Puerto de la Cruz, Punta del Hidalgo, and Valle de Guerra. Further expansions are already planned for the capital and Punta Brava to complete the island’s sanitation network.