The U.S. Supreme Court approved on May 28 a settlement that ends more than a decade of litigation over Rio Grande water rights, protecting New Mexico taxpayers from potential liabilities and establishing a long-term management framework for the Lower Rio Grande Basin.
The agreement resolves Texas v. New Mexico and Colorado, which focused on claims that New Mexico had overused groundwater. The settlement was reached between New Mexico, Texas, Colorado, and the United States and addresses both surface water deliveries and groundwater use below Elephant Butte Reservoir. Officials said the agreement provides clarity for water users in the region.
“Water is the foundation of New Mexico’s agricultural economy and the lifeblood of communities across the southern part of our state,” said Governor Michelle Lujan Grisham. “This settlement means farmers in the Lower Rio Grande can plan for the future, communities have certainty about their water supply, and New Mexicans aren’t on the hook for a liability that could have cost billions.” Attorney General Raúl Torrez said, “This settlement represents a fair and responsible resolution to a decade of litigation that carried enormous financial risk for New Mexico. Had this case continued and the Court ruled against us, New Mexico taxpayers could have faced billions of dollars in liability to Texas. Instead, this agreement protects our state’s interests, provides certainty for water users and communities across the region, and establishes a practical framework for managing one of our most vital resources for years to come.” State Engineer Elizabeth Anderson said, “This agreement gives New Mexico the tools, flexibility, and time needed to meet our legal obligations while continuing to support agriculture, economic activity, and responsible water management across the region.” Hannah Riseley White of the Interstate Stream Commission added: “We all rely on water, and this settlement helps protect New Mexico’s water future while supporting the communities, farms, and businesses that depend on the Rio Grande… creating a collaborative path forward grounded in science, law, and long-term stewardship.”
Under terms of the deal, ongoing efforts will continue in partnership with local users to improve management practices in areas such as conservation initiatives or aquifer sustainability planning. The new system establishes clear accounting rules allowing continued groundwater use within enforceable limits by both states.
The executive branch led by Governor Michelle Lujan Grisham oversees these statewide initiatives from its offices at 490 Old Santa Fe Trail in Santa Fe; it promotes public service careers as part of its administrative goals; offers programs like early childhood education initiatives; tracks infrastructure projects; combats food insecurity; facilitates public engagement through appointment applications; handles requests for assistance or records; operates primarily within New Mexico’s borders with Howie Morales serving as lieutenant governor alongside cabinet secretaries including those overseeing health or education departments, according to the official website.
