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State officials outline settlement framework in Texas v. New Mexico: 18,200‑acre‑foot depletion reduction, ISC purchases and a two‑year Lower Rio Grande plan
Summary
State engineers and DOJ briefed the committee on settlement documents filed Aug. 29 that would resolve long-running litigation by (1) creating a state‑line delivery index, (2) requiring New Mexico to reduce post‑1978 groundwater depletions by ~18,200 acre‑feet (over a 10‑year acquisition window) and (3) enabling ISC purchases/leases and EBID contracts to secure deliveries and compensate farmers.
State engineer and Department of Justice representatives described the contours of settlement agreements in Texas v. New Mexico and related litigation, which were submitted to the special master on Aug. 29.
Panelists said the agreements address three core problems: gaps in project accounting and distribution below Elephant Butte, the effects of groundwater pumping on project performance, and legal uncertainty that has diverted funding to protracted litigation. The operation‑settlement agreement modifies project accounting and provides mechanisms (contracts among ISC, Elephant Butte Irrigation District and the U.S. Bureau of Reclamation) to allow the ISC to acquire water rights and apply them toward any state‑line delivery obligations if necessary. Presenters said farmers who voluntarily sell or lease water rights would be compensated.
On groundwater, New Mexico will reduce groundwater depletions by approximately 18,200 acre‑feet—the increment the state estimates developed after 1978—and will monitor aquifer levels, project efficiency and performance under quantitative standards included in the settlement. ISC said it has up to 10 years to acquire or retire rights to meet the depletion‑reduction obligation and that a mix of purchases, leases and permanent retirements could be used; the agreement specifies how different types of acquired rights count toward the depletion goal.
Panelists said the state has already leveraged approximately $40 million in federal funding to support some implementation work and estimates the total cost to meet the depletion reduction could reach roughly $150 million. ISC staff stressed that purchasing water rights will be structured to avoid recurring land‑management problems experienced previously (for example, the Pecos buyout), and the settlement includes contracting paths (including third‑party implementing contracts and miscellaneous‑purpose contracts with EBID) so acquired rights can be used for state‑line delivery or banked for future years.
The settlement requires New Mexico to adopt a Lower Rio Grande management plan (including alternative administration under active water‑resources management) developed with local stakeholders within roughly two years. The presenters said the agreements provide a transition period to implement the various components, that the Supreme Court special master will consider the filings, and that the parties expect a special‑master report in 2025 and likely Supreme Court action in 2026.
Supporters said the settlement protects a substantial portion of Lower Rio Grande groundwater use that would otherwise have been at risk in litigation and returns more surface water to New Mexico farms via improved project operations. Critics in the hearing pressed for clarity on purchase pricing, how purchased rights will be verified where adjudication remains incomplete, and how the state will fund annual assessments for using EBID allocations.
The committee closed the session after questions and moved to the next agenda item.
