Nogales Wastewater Plant Undergoes First Major Upgrade in 15 Years

After 15 years, the Nogales International Wastewater Treatment Plant is set for significant renovations, with an estimated budget of $40 million. Located just outside Nogales in Rio Rico, this facility plays a crucial role in managing wastewater from both the U.S. and Mexico.

Operated by the International Boundary and Water Commission, the plant is unique in its bi-national service, treating water that supports a 26-mile riparian stretch of the Santa Cruz River. This water is vital for the aquifers that serve communities in Santa Cruz and Pima counties.

Over the years, equipment deterioration has raised concerns about water quality, prompting the need for this extensive upgrade. Last year, more than $1 million was allocated to replace outdated equipment, and efforts to secure further funding are ongoing.