Mexico’s National Water Commission (Conagua) has announced an investment of 255 million pesos to sanitize the Ignacio Allende Dam in San Miguel de Allende.

The massive funding initiative is part of a broader federal strategy directed by President Claudia Sheinbaum Pardo to restore contaminated rivers, lakes, and dams nationwide.

The financial resources will be specifically directed toward expanding and upgrading two major wastewater treatment plants: Fray Juan de San Miguel and La Parroquia. This strategy aims to treat domestic waste at its source before it discharges into the reservoir.

Additionally, rehabilitation works are underway at three other treatment facilities—San Pablo, Ex Estación del Ferrocarril, and Cruz del Padre—alongside drainage improvements and the installation of two water quality monitoring stations to detect ongoing contamination.

Simultaneously, authorities are tackling a severe water hyacinth (lirio acuático) infestation that has blanketed parts of the dam, suffocating local fish populations and halting tourism. Through joint manual and mechanical cleanups involving over 450 people from government bodies and local communities, workers have already successfully cleared nearly 6,000 cubic meters of the invasive weed.

A new massive cleanup operation is scheduled for Tuesday, June 16, to continue the environmental rescue.