New Mexico's proposed water protection rules include ancient acequias

New Mexico is moving to establish new state-level regulations to protect its limited surface water resources. This action follows a U.S. Supreme Court ruling that significantly narrowed the scope of waters falling under federal protection through the Clean Water Act, leaving many wetlands and seasonal streams vulnerable to pollution. The state has the lowest ratio of surface water to land in the U.S.

The Water Quality Control Commission is currently conducting rulemaking hearings in Santa Fe, scheduled through June 18. These hearings aim to determine how a bill passed by the 2025 Legislature should be implemented. Public comment is being accepted both in-person and virtually. Vidal Gonzales, director of policy and planning for the New Mexico Acequia Association, is a vocal advocate for strict rules, emphasizing the need to protect the state’s roughly 700 centuries-old acequia irrigation systems crucial for families and agriculture.

Gonzales specifically argues that the new state rules must be at least as protective as the federal requirements that were lost, and crucially, "ensuring acequias are not overburdened with permitting." The state's waters face multiple threats, including climate change and increased demand from industrial growth, which includes mining, oil and gas exploration, and data centers. By developing its own permitting and enforcement program, New Mexico aims to provide Clean Water Act-style protections for both federally regulated waters and those now outside federal oversight.