EDAR del NorEste Wastewater Treatment Plant, San Cristóbal de La Laguna, Tenerife

EDAR del NorEste is a wastewater treatment plant located in the El Boquerón area of San Cristóbal de La Laguna, on the island of Tenerife in the Canary Islands, Spain. The plant serves a population of around 39,212, placing it in the medium agglomeration category under EU classification. As a Spanish facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size discharging into coastal waters. The plant's treated effluent ultimately reaches the Atlantic Ocean, as the Canary Islands are an archipelago. The local watershed includes ravines and coastal areas that support marine ecosystems. The plant plays a key role in protecting coastal water quality and the surrounding environment from untreated wastewater.

The plant discharges into the Atlantic Ocean via local ravines and coastal outflows. The Canary Islands' marine environment supports diverse aquatic life, including seagrass meadows and fish populations. Protecting these waters from nutrient pollution is critical for maintaining ecological balance and supporting tourism and fisheries.