EDAR Municipal de Garachico - Secondary Wastewater Treatment in Garachico, Tenerife

EDAR Municipal de Garachico is a municipal wastewater treatment plant located in Las Cruces, Garachico, on the island of Tenerife in the Canary Islands, Spain. It serves a population of approximately 3,903 residents, classifying it as a small agglomeration under Spanish and EU regulations. The plant is situated in a coastal volcanic landscape, typical of the Canary archipelago. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for discharges into coastal waters. With a designed capacity of 6,000 m³/day and a current discharge volume of 707.41 m³/day, the plant operates well below its capacity, indicating room for future growth. As a coastal facility, it must meet stringent standards to protect marine ecosystems. Treated effluent from the plant is discharged into the Atlantic Ocean, likely via a submarine outfall, given the island's steep coastal topography. The surrounding marine environment supports diverse ecosystems, including seagrass meadows and coral formations, which are sensitive to nutrient loading. The plant plays a key role in safeguarding water quality along the northern coast of Tenerife.

The plant discharges into the Atlantic Ocean off the northern coast of Tenerife, part of the Canary Islands. This marine environment is ecologically sensitive, supporting diverse benthic habitats and species adapted to volcanic substrates. The discharge point is within a coastal zone that may host protected marine species, making nutrient and pathogen control critical. The plant's secondary treatment helps mitigate eutrophication risks in these oligotrophic waters.