Codify — Article

Northeastern Arizona Indian Water Rights Settlement Act of 2025

Ratifies a multi-tribal Arizona water-rights settlement, allocates Colorado River water to Navajo and Hopi, funds a tribal pipeline, and creates multi‑hundred‑million-dollar trust accounts.

The Brief

This bill ratifies and implements the Northeastern Arizona Indian Water Rights Settlement Agreement: it confirms tribal water rights, directs the Secretary of the Interior to execute settlement documents and long‑term water delivery contracts, authorizes a major tribal pipeline project, and creates non‑trust and trust accounts to fund construction, operations, and community water projects for the Navajo Nation, Hopi Tribe, and San Juan Southern Paiute Tribe.

Why it matters: it resolves long‑running claims inside Arizona by replacing litigation with a negotiated mix of water entitlements, project funding, and negotiated waivers and releases. The package ties together Colorado River allocations, new infrastructure (the iina´ba´–paa tuwaqat’si pipeline), leasing authority and accounting rules that will affect how tribal Colorado River water is stored, used, and leased within Arizona — with implications for water managers, Reclamation, the State, and other Colorado River Basin interests.

At a Glance

What It Does

Authorizes the Secretary to execute and implement a multi‑party Indian water rights settlement; confirms tribal water rights to be held in trust; establishes long‑term federal delivery contracts; creates a major pipeline program and dedicated implementation and tribal trust accounts; and sets rules for leasing, storage, and Colorado River accounting.

Who It Affects

Navajo Nation, Hopi Tribe, San Juan Southern Paiute Tribe and their allottees; Bureau of Reclamation and Interior; Arizona Department of Water Resources, CAWCD and CAP users; New Mexico and Utah permitting authorities where storage/diversion intersects other states; municipal and industrial water customers and potential lease counterparties inside Arizona.

Why It Matters

It converts contested tribal claims into quantified entitlements packaged with federal capital and recurring OM&R funding rules, new tribal infrastructure ownership/operation regimes, and a concentrated 20‑year system conservation program — creating a working model for complex, interstate, tribal water settlements on the Colorado River.

More articles like this one.

A weekly email with all the latest developments on this topic.

Unsubscribe anytime.

What This Bill Actually Does

The bill ratifies a negotiated settlement among the Navajo Nation, Hopi Tribe, San Juan Southern Paiute Tribe, the State of Arizona, and many local parties and directs the Secretary of the Interior to execute and implement that Settlement Agreement, subject to amendments to conform it to the Act. It places the tribal water rights described in the settlement into trust for the Tribes (and for Navajo and Hopi allottees where specified), establishes how those rights may be used on‑ and off‑reservation, and protects many of those rights from loss by nonuse, forfeiture, or abandonment.

A central programmatic element is authorization to build the iina´ba´–paa tuwaqat’si pipeline — a Bureau of Reclamation‑led, phased water delivery project whose planning, design, environmental compliance, construction, and phased operations will be coordinated with tribal representatives. The bill establishes a federal iina´ba´–paa tuwaqat’si pipeline Implementation Fund Account to receive appropriations for that project, and it contemplates phased transfer of operations and title to tribal entities when construction phases reach substantial completion.The settlement ties allocations of Colorado River water to delivery contracts the Secretary must sign: those contracts will define points of diversion, storage locations, and places of use and include limits on out‑of‑state transfers.

The bill creates detailed rules for storage, exchanges, and conveyance (including through the CAP system), and authorizes tribes to lease or exchange their allocated Colorado River water subject to lease‑period limits, Secretary approval, and accounting requirements. It also authorizes a 20‑year system conservation program to place a specified quantity of tribal Upper Basin allocations into Lake Powell as a drought‑mitigation measure.To pay for projects and OM&R the bill creates three separate tribal settlement trust funds (for Navajo, Hopi, and San Juan Southern Paiute), each with subaccounts (water projects, OM&R, agricultural conservation, and other targeted purposes).

It sets rules for how those funds are managed, when tribes may withdraw money, and what the money may be used for. The legislative package also contains extensive waiver and release language, limited waivers of tribal sovereign immunity in narrowly defined enforcement contexts, and a precise set of conditions (court decrees, signatures, and deposits) that must be met before the settlement becomes enforceable.

The Five Things You Need to Know

1

Allocations: the bill gives the Navajo Nation 44,700 AFY of Arizona Upper Basin Colorado River Water and the Hopi Tribe 2,300 AFY of Arizona Upper Basin Colorado River Water, and allocates 3,500 AFY of Fourth Priority Water to the Navajo Nation.

2

Funding: Congress mandates $1.715 billion for the iina´ba´–paa tuwaqat’si pipeline Implementation Fund Account and $3.4214 billion for tribal settlement trust accounts (total transfers from Treasury of $5.1364 billion, deposited into designated accounts subject to Enforceability conditions).

3

Pipeline capacity and service: the iina´ba´–paa tuwaqat’si pipeline is designed to deliver potable Colorado River water to tribal communities — authorized volumes include up to 7,100 AFY routed for Navajo uses (including 350 AFY to San Juan Southern Paiute area) and up to 3,076 AFY to Hopi communities.

4

Leasing and system conservation limits: the Navajo Nation and Hopi Tribe may enter leases and exchanges but leasing of Upper Basin water into the Lower Basin is capped under the settlement’s system conservation program at 17,050 AFY total (split 16,214.55 AFY to Navajo / 835.45 AFY to Hopi) for 20 years, with detailed post‑20‑year provisions in the bill.

5

Enforceability trigger: the settlement only becomes effective after a bundle of conditions (amendment conforming the Agreement to the Act, signatures by not fewer than 30 Parties including the three Tribes, State and CAWCD; filing of required court decrees; and deposit of the authorized funds) are met and a formal Secretary finding is published.

Section-by-Section Breakdown

Every bill we cover gets an analysis of its key sections. Expand all ↓

Section 4

Ratification, execution, and environmental compliance

Congress ratifies and confirms the Northeastern Arizona Settlement Agreement to the extent it is consistent with this Act, directs the Secretary to execute the Agreement and related exhibits, and requires the Secretary and the Tribes to satisfy all applicable environmental laws in implementing projects and delivery contracts. The Secretary must independently evaluate and accept environmental work prepared by the Tribes (except for pipeline compliance costs, which are funded from the pipeline account). Execution does not itself trigger a NEPA major federal action finding.

Section 5

Confirmation, trust status, and places of use for tribal water rights

The bill ratifies the tribal Water Rights described in the Settlement Agreement and directs the United States to hold those rights in trust for the Tribes and for specified allottees. It fixes where those rights may be used (on reservations, trust lands, and constrained off‑reservation trust lands), shields specified rights from nonuse/forfeiture, and requires the Navajo Nation to adopt or amend a Navajo Nation Water Code that meets Secretary approval before certain allottee administration functions fully transition to the Tribe.

Section 6 & 17

Allocation, delivery contracts, storage and accounting

Congress allocates discrete Colorado River shares to the Tribes and instructs the Secretary to sign permanent, unlimited‑term delivery contracts specifying points of diversion, storage and places of use. The statute sets detailed rules for where Upper Basin and Lower Basin water can be stored and used, how deliveries will be accounted (including special rules for deliveries that cross Lee Ferry), and cross‑state conditions for water diverted or stored in New Mexico or Utah for use in Arizona.

5 more sections
Section 7

Leases, exchanges and lease‑period governance

The bill authorizes the Tribes to lease or exchange allotted Colorado River water for use or storage within Arizona, subject to Secretary approval, explicit contract content, fixed term limits in many cases, and caps during the defined Lease Period. It assigns lessees responsibility for OM&R and energy costs, permits delivery through CAP only with CAWCD agreement and payment, and forbids permanent alienation of tribal Colorado River entitlements.

Section 8 & 9

iina´ba´–paa tuwaqat’si pipeline: design, construction, phasing and ownership

The Bureau must plan, design and construct the iina´ba´–paa tuwaqat’si pipeline (with a specified baseline configuration unless modified via value engineering and tribal/Committee input), using a Project Construction Committee with tribal representation. The bill requires feasibility/value‑planning, phased construction with Secretary determinations of substantial completion, and phased transfer of operations and title to tribal owners. It also creates a dedicated Implementation Fund Account to receive pipeline appropriations.

Sections 10–12

Tribal settlement trust funds and permitted uses

Congress creates non‑trust and trust accounts for each Tribe (Navajo, Hopi, San Juan Southern Paiute) with subaccounts for water projects, OM&R, agricultural conservation, renewable energy and lower basin water acquisition. It prescribes permissible uses, limits withdrawals to approved tribal management or expenditure plans, requires Secretary oversight of plan compliance, and prohibits per‑capita distributions — directing funds toward capital, operations, and conservation projects.

Section 14

Waivers, releases, and reserved claims

The bill implements a complex package of waivers and mutual releases: tribes and the United States release many historical and future claims in exchange for the settlement benefits while expressly preserving a defined set of reservations (for example, rights to enforce settlement provisions, certain decree claims, and objections to third‑party claims). The text carefully enumerates retained claims and the scope of what is waived; these provisions are central to achieving finality among the settling parties.

Sections 16, 18, 19

Enforceability conditions, limited sovereign‑immunity waivers, and San Juan Southern Paiute Reservation

The settlement becomes enforceable only after a list of conditions is satisfied (amendment conformity, execution by required signatories, court decrees in the LCR and Gila adjudications, and funding deposits). The bill also implements targeted, limited tribal sovereign‑immunity consents to suit for enforcement of the Agreement and related adjudications and ratifies the Treaty creating the San Juan Southern Paiute Reservation, with the Secretary charged with surveying and issuing public notices to establish boundaries.

At scale

This bill is one of many.

Codify tracks hundreds of bills on Indigenous Affairs across all five countries.

Explore Indigenous Affairs in Codify Search →

Who Benefits and Who Bears the Cost

Every bill creates winners and losers. Here's who stands to gain and who bears the cost.

Who Benefits

  • Navajo Nation — receives a quantified package of water entitlements held in trust, major federal funding for local water projects, a path to ownership and operation of pipeline assets, and a 20‑year system conservation role that can generate revenue.
  • Hopi Tribe — receives explicit allocations and Cibola contract amendments, funding for groundwater projects and OM&R, and title/operation pathways for the pipeline segments serving Hopi communities.
  • San Juan Southern Paiute Tribe — newly recognized reservation land, trust‑held water and targeted project funds for groundwater and OM&R designed to deliver municipal service to its communities.
  • Navajo and Hopi Allottees — specific protections and trust holdings for allotment water rights; the Navajo Nation Water Code framework contemplates an allottee allocation process and exhaustion of tribal remedies before federal claims.
  • Local reservation communities and municipal customers — improved prospects for potable municipal supplies, replacement of unreliable local sources, and funding for community water infrastructure and renewable energy to power systems.

Who Bears the Cost

  • Federal government / taxpayers — Congress mandates multibillion‑dollar transfers and authorizes large appropriations for pipeline construction and trust funds; missing appropriations would stall the package and could trigger reversion provisions.
  • Navajo Nation and Hopi Tribe — required to participate in project design, environmental compliance, and (if federal funds prove insufficient) to contribute supplemental trust fund dollars to complete the pipeline; also bear long‑term OM&R obligations.
  • Bureau of Reclamation and Interior — responsible for execution, environmental review, contracting, phased construction, and complex accounting; the agencies inherit program and oversight workload without new staffing detail.
  • CAP/CAWCD and lessees — lessees transporting tribal water through CAP must pay fixed OM&R and energy pumping charges; CAWCD and CAP users face coordination and operational impacts if leased diversions route through CAP.
  • State engineers and New Mexico/Utah regulators — must process permits and coordinate interstate accounting when storage/diversion occurs in other states; they absorb permitting, monitoring, and administrative burdens.

Key Issues

The Core Tension

The central dilemma: the Act trades legal finality and quantifiable tribal water entitlements plus major federal capital for constrained future litigation and complex interstate accounting — resolving a decades‑old injustice for Arizona tribes while imposing novel leasing, storage, and accounting arrangements that some basin stakeholders worry could complicate apportionment practice and set a delicate precedent for trading Upper Basin water in the Lower Basin.

The bill bundles legal finality, new entitlements, multi‑state coordination, and major capital funding into one package. That makes implementation mechanically complex: Reclamation and the Tribes must complete feasibility and value‑planning, environmental compliance, rights‑of‑way and permits across Arizona (and where relevant New Mexico/Utah), and then build and phase a large pipeline.

The plan assumes permanent, long‑term delivery contracts and that tribal trust funds and lease revenues will cover OM&R and operational deficits — but actual OM&R costs, future energy prices, and construction inflation remain uncertain. The statute includes indexing/adjustment language for cost fluctuations, and it sets aside portions of the trust funds as reserves for pipeline shortfalls, but tribes face real decisions about using settlement capital for construction versus recurring costs.

Try it yourself.

Ask a question in plain English, or pick a topic below. Results in seconds.