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Notice

Rate Adjustments for Indian Irrigation Projects

A Notice by the Indian Affairs Bureau on 03/23/2026

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3. Document Details Published Content - Document Details Agencies Department of the Interior Bureau of Indian Affairs Agency/Docket Number 267A2100DD/AAKC001030/A0A501010.000000 Document Citation 91 FR 13856 Document Number 2026-05577 Document Type Notice Pages 13856-13861 (6 pages) Publication Date 03/23/2026 Published Content - Document Details

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• Document Details Published Content - Document Details Agencies Department of the Interior Bureau of Indian Affairs Agency/Docket Number 267A2100DD/AAKC001030/A0A501010.000000 Document Citation 91 FR 13856 Document Number 2026-05577 Document Type Notice Pages 13856-13861 (6 pages) Publication Date 03/23/2026 Published Content - Document Details
• Document Dates Published Content - Document Dates Comments Close 05/22/2026 Dates Text Interested parties may submit comments on the proposed rate adjustments on or before May 22, 2026. Published Content - Document Dates

• Table of Contents Enhanced Content - Table of Contents This table of contents is a navigational tool, processed from the
  headings within the legal text of Federal Register documents.
  This repetition of headings to form internal navigation links
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  • AGENCY:
  • ACTION:
  • SUMMARY:
  • DATES:
  • ADDRESSES:
  • FOR FURTHER INFORMATION CONTACT:
  • SUPPLEMENTARY INFORMATION:
  • What is the meaning of the key terms used in this notice?
  • Does this notice affect me?
  • Where can I get information on the regulatory and legal citations in this notice?
  • Why are you publishing this notice?
  • What authorizes you to issue this notice?
  • When will you put the rate adjustments into effect?
  • How do you calculate irrigation rates?
  • What kinds of expenses do you consider in determining the estimated annual costs of operation and maintenance?
  • When should I pay my irrigation assessment?
  • What information must I provide for billing purposes?
  • Why are you collecting my taxpayer identification number or social security number?
  • What happens if I am a responsible party, but I fail to furnish the information required to the billing office responsible for the irrigation project within which I own or lease assessable land or for which I have a carriage agreement?
  • What can happen if I do not provide the information required for billing purposes?
  • If I allow my bill to become past due, could this affect my water delivery?
  • Are there any additional charges if I am late paying my bill?
  • What else will happen to my past due bill?
  • Who can I contact for further information?
  • What irrigation assessments or charges are proposed for adjustment by this notice?
  • Consultation and Coordination With Tribal Governments ( Executive Order 13175)
  • Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use ( Executive Order 13211)
  • Regulatory Planning and Review ( Executive Order 12866), as Amended by Executive Order 14094)
  • Regulatory Flexibility Act
  • Unfunded Mandates Reform Act of 1995
  • Takings ( Executive Order 12630)
  • Federalism ( Executive Order 13132)
  • Civil Justice Reform ( Executive Order 12988)
  • Paperwork Reduction Act of 1995
  • National Environmental Policy Act Enhanced Content - Table of Contents

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| 267A2100DD/AAKC001030/A0A501010.000000
(20 Documents) | | | |
| --- | | | |
| Date | | Action | Title |
| | 2026-03-23 | Notice. | Rate Adjustments for Indian Irrigation Projects |
| | 2026-03-10 | Notice. | Indian Gaming; Approval by Operation of Law of the Lac du Flambeau Band of Lake Superior Chippewa Indians of the Lac du Flambeau Reservation of Wisconsin and State of Wisconsin Gaming Compact |
| | 2026-03-09 | Notice of deadline for request to participate. | Notice of Deadline for Submitting Completed Requests To Begin Participation in the Tribal Self-Governance Program in Fiscal Year 2027 or Calendar Year 2027 |
| | 2026-02-19 | Notice. | Indian Energy Service Center; Receipt of Tribal Energy Resource Agreement for the Southern Ute Indian Tribe of the Southern Ute Reservation, Colorado |
| | 2026-02-06 | Notice. | Indian Gaming; Approval by Operation of Law of the Sixth Amendment to the Tribal-State Compact for Class III Gaming Between the Lummi Nation and the State of Washington |
| | 2026-02-06 | Notice. | Indian Gaming; Approval by Operation of Law of the First Amendment to the Tribal-State Gaming Compact Between the State of California and the Sycuan Band of the Kumeyaay Nation |
| | 2026-01-30 | Notice. | Indian Entities Recognized by and Eligible To Receive Services From the United States Bureau of Indian Affairs |
| | 2026-01-27 | Notice. | Confederated Tribes of Siletz Indians of Oregon; Amendments to Liquor Control Ordinance |
| | 2026-01-26 | Notice. | Indian Gaming; Approval by Operation of Law of the Class III Tribal-State Gaming Compact Between the Confederated Salish and Kootenai Tribes of the Flathead Indian Reservation and the State of Montana |
| | 2026-01-26 | Notice. | Indian Gaming; Approval by Operation of Law of the Fourth Amendment to the Tribal-State Compact Between the State of California and the Picayune Rancheria of Chukchansi Indians of California |
| | 2026-01-26 | Notice. | Indian Gaming; Approval by Operation of Law of the Tribal-State Gaming Compact Between the State of California and the Cher-Ae Heights Indian Community of the Trinidad Rancheria |
| | 2026-01-26 | Notice. | Indian Gaming; Approval by Operation of Law of the First Amendment to the Tribal-State Compact Between the State of California and the Pinoleville Pomo Nation, California |
| | 2026-01-26 | Notice. | Indian Gaming; Approval by Operation of Law of the Seventh Amendment to the Tribal-State Compact for Class III Gaming Between the Puyallup Tribe of Indians and the State of Washington |
| | 2025-12-30 | Notice. | Receipt of Request for Authorization To Re-Petition for Federal Acknowledgment as an American Indian Tribe |
| | 2025-12-29 | Notice. | Receipt of Request for Authorization To Re-Petition for Federal Acknowledgment as an American Indian Tribe |
| | 2025-12-15 | Notice. | Indian Gaming; Approval by Operation of Law of the Tribal-State Compact Amendment Between the Catawba Nation and the State of North Carolina |
| | 2025-12-15 | Notice. | Indian Gaming; Approval by Operation of Law of the Addendum to Tribal-State Compact for Control of Class III Blackjack on the Lower Sioux Community Reservation in the State of Minnesota for Class III Card Games |
| | 2025-11-26 | Notice. | Indian Gaming; Approval by Operation of Law of the Eighth Amendment to the Tribal-State Compact for Class III Gaming Between the Nooksack Indian Tribe and the State of Washington |
| | 2025-11-24 | Notice. | HEARTH Act Approval of Shivwits Band of Paiutes Leasing Ordinance |
| | 2025-11-24 | Notice. | Indian Gaming; Approval by Operation of Law of the Amendment to the Sac and Fox Nation of Missouri in Kansas and Nebraska Kansas Class III Gaming Compact |

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Department of the Interior

Bureau of Indian Affairs

1. [267A2100DD/AAKC001030/A0A501010.000000]

AGENCY:

Bureau of Indian Affairs, Interior.

ACTION:

Notice.

SUMMARY:

The Bureau of Indian Affairs (BIA) owns or has an interest in irrigation projects located on or associated with various Indian reservations throughout the United States. We are required to establish irrigation assessment rates to recover the costs to administer, operate, maintain, and rehabilitate these projects. We request your comments on the proposed rate adjustments.

DATES:

Interested parties may submit comments on the proposed rate adjustments on or before May 22, 2026.

ADDRESSES:

All comments on the proposed rate adjustments must be in writing. You may send comments via email to: comments@bia.gov. Please reference “Rate Adjustments for Indian Irrigation Projects” in the subject line. Or you may submit comments to the Program Specialist, Division of Water and Power, Office of Trust Services, 2021 4th Avenue North, Billings, Montana 59101.

FOR FURTHER INFORMATION CONTACT:

Leslie Underwood, Program Specialist, Division of Water and Power, Office of Trust Services, (406) 226-2775. For details about a particular irrigation project, please use the table in the SUPPLEMENTARY INFORMATION section to contact the BIA regional or local office where the project is located.

( printed page 13857)

SUPPLEMENTARY INFORMATION:

The first table in this notice provides contact information for individuals who can give further information about the irrigation projects covered by this notice. The second table provides the proposed rates for calendar year (CY) 2027 for all irrigation projects.

What is the meaning of the key terms used in this notice?

In this notice:

Administrative costs mean all costs we incur to administer our irrigation projects at the local project level and are a cost factor included in calculating your operation and maintenance assessment. Costs incurred at the local project level do not normally include agency, region, or central office costs unless we state otherwise in writing.

Assessable acre means lands designated by us to be served by one of our irrigation projects, for which we collect assessments in order to recover costs for the provision of irrigation service. (See also “total assessable acres.”)

BIA means the Bureau of Indian Affairs.

Bill means our statement to you of the assessment charges and/or fees you owe the United States for administration, operation, maintenance, and/or rehabilitation. The date we mail or hand-deliver your bill will be stated on it.

Costs means the costs we incur for administration, operation, maintenance, and rehabilitation to provide direct support or benefit to an irrigation facility. (See administrative costs, operation costs, maintenance costs, and rehabilitation costs).

Customer means any person or entity to whom or to which we provide irrigation service.

Due date is the date on which your bill is due and payable. This date will be stated on your bill.

I, me, my, you and your mean all persons or entities that are affected by this notice.

Irrigation project means a facility or portion thereof for the delivery, diversion, and storage of irrigation water that we own or have an interest in, including all appurtenant works. The term “irrigation project” is used interchangeably with irrigation facility, irrigation system, and irrigation area.

Irrigation service means the full range of services we provide customers of our irrigation projects. This includes our activities to administer, operate, maintain, and rehabilitate our projects in order to deliver water.

Maintenance costs means costs we incur to maintain and repair our irrigation projects and associated equipment and is a cost factor included in calculating your operation and maintenance assessment.

Operation and maintenance (O&M) assessment means the periodic charge you must pay us to reimburse costs of administering, operating, maintaining, and rehabilitating irrigation projects consistent with this notice and our supporting policies, manuals, and handbooks.

Operation or operating costs means costs we incur to operate our irrigation projects and equipment and is a cost factor included in calculating your O&M assessment.

Past due bill means a bill that has not been paid by the close of business on the 30th day after the due date as stated on the bill. Beginning on the 31st day after the due date, we begin assessing additional charges accruing from the due date.

Rehabilitation costs means costs we incur to restore our irrigation projects or features to original operating condition or to the nearest state which can be achieved using current technology and is a cost factor included in calculating your O&M assessment.

Responsible party means an individual or entity that owns or leases land within the assessable acreage of one of our irrigation projects and is responsible for providing accurate information to our billing office and paying a bill for an annual irrigation rate assessment.

Total assessable acres mean the total acres served by one of our irrigation projects.

Water delivery is an activity that is part of the irrigation service we provide our customers when water is available.

We, us, and our mean the United States Government, the Secretary of the Interior, the BIA, and all who are authorized to represent us in matters covered under this notice.

Does this notice affect me?

This notice affects you if you own or lease land within the assessable acreage of one of our irrigation projects or if you have a carriage agreement with one of our irrigation projects.

Where can I get information on the regulatory and legal citations in this notice?

You can contact the appropriate office(s) for the irrigation project that serves you. Please use the table in the SUPPLEMENTARY INFORMATION section to contact the regional or local office where the project is located.

Why are you publishing this notice?

We are publishing this notice to inform you that we propose to adjust our irrigation assessment rates. This notice is published in accordance with the BIA's regulations governing its operation and maintenance of irrigation projects, found at 25 CFR part 171. This regulation provides for the establishment and publication of the proposed rates for annual irrigation assessments as well as related information about our irrigation projects.

What authorizes you to issue this notice?

Our authority to issue this notice is vested in the Secretary of the Interior by 5 U.S.C. 301 and the Act of August 14, 1914 (38 Stat. 583; 25 U.S.C. 385). The Secretary has in turn delegated this authority to the Assistant Secretary—Indian Affairs under part 209, chapter 8.1A, of the Department of the Interior's Departmental Manual.

When will you put the rate adjustments into effect?

We will put the rate adjustments into effect for CY 2027.

How do you calculate irrigation rates?

We calculate annual irrigation assessment rates in accordance with 25 CFR 171.500 by estimating the annual costs of operation and maintenance at each of our irrigation projects and then dividing by the total assessable acres for that particular irrigation project. The result of this calculation for each project is stated in the rate table in this notice.

What kinds of expenses do you consider in determining the estimated annual costs of operation and maintenance?

Consistent with 25 CFR 171.500, these expenses include the following:

(a) Personnel salary and benefits for the project engineer/manager and project employees under the project engineer/manager's management or control;

(b) Materials and supplies;

(c) Vehicle and equipment repairs;

(d) Equipment costs, including lease fees;

(e) Depreciation;

(f) Acquisition costs;

(g) Maintenance of a reserve fund available for contingencies or emergency costs needed for the reliable operation of the irrigation facility infrastructure;

(h) Maintenance of a vehicle and heavy equipment replacement fund;

(i) Systematic rehabilitation and replacement of project facilities; ( printed page 13858)

(j) Contingencies for unknown costs and omitted budget items; and

(k) Other expenses we determine necessary to properly perform the activities and functions characteristic of an irrigation project.

When should I pay my irrigation assessment?

We will mail or hand deliver your bill notifying you (a) the amount you owe to the United States; and (b) when such amount is due. If we mail your bill, we will consider it as being delivered no later than five (5) business days after the day we mail it. You should pay your bill by the due date stated on the bill.

What information must I provide for billing purposes?

All responsible parties are required to provide the following information to the billing office associated with the irrigation project where you own or lease land within the project's assessable acreage or to the billing office associated with the irrigation project with which you have a carriage agreement:

(1) The full legal name of the person or entity responsible for paying the bill;

(2) An adequate and correct address for mailing or hand delivering our bill; and

(3) The taxpayer identification number or social security number of the person or entity responsible for paying the bill.

Why are you collecting my taxpayer identification number or social security number?

Public Law 104-134, the Debt Collection Improvement Act of 1996, requires that we collect the taxpayer identification number or social security number before billing a responsible party and as a condition to servicing the account.

What happens if I am a responsible party, but I fail to furnish the information required to the billing office responsible for the irrigation project within which I own or lease assessable land or for which I have a carriage agreement?

If you are late paying your bill because of your failure to furnish the required information listed above, you will be assessed interest and penalties as provided below, and your failure to provide the required information will not provide grounds for you to appeal your bill or any penalties assessed.

What can happen if I do not provide the information required for billing purposes?

We can refuse to provide you irrigation service.

If I allow my bill to become past due, could this affect my water delivery?

Yes. 25 CFR 171.545(a) states: “We will not provide you irrigation service until: (1) Your bill is paid; or (2) You make arrangement for payment pursuant to § 171.550 of this part.” If we do not receive your payment before the close of business on the 30th day after the due date stated on your bill, we will send you a past due notice. This past due notice will have additional information concerning your rights. We will consider your past due notice as delivered no later than five (5) business days after the day we mail it. We follow the procedures provided in 31 CFR 901.2, “Demand for Payment,” when demanding payment of your past due bill.

Are there any additional charges if I am late paying my bill?

Yes. We are required to assess interest, penalties, and administrative costs on past due bills in accordance with 31 U.S.C. 3717 and 31 CFR 901.9. The rate of interest is established annually by the Secretary of the United States Treasury (Treasury) and accrues from the date your bill is past due. If your bill becomes more than 90 days past due, you will be assessed a penalty charge of no more than six percent per year, which accrues from the date your bill became past due. Each time we try to collect your past due bill, you will be charged an administrative fee of $12.50 for processing and handling.

What else will happen to my past due bill?

If you do not pay your bill or make payment arrangements to which we agree, we are required to transfer your past due bill to Treasury for further action. Pursuant to 31 CFR 285.12, bills that are 120 days past due will be transferred to Treasury.

Who can I contact for further information?

The contact table below contains the regional and project/agency contacts for our irrigation facilities. Individuals in the United States who are deaf, deafblind, hard of hearing, or have a speech disability may dial 711 (TTY, TDD, or TeleBraille) to access telecommunications relay services.

| Northwest Region Contacts | |
| Kurt Fredenburg, Acting Regional Director, Bureau of Indian Affairs, Northwest Regional Office, 911 NE 11th Avenue, Portland, OR 97232-4169. Telephone: (505) 220-9252. | |
| Flathead Indian Irrigation Project | Dawn Davis, Acting Superintendent, Dominick Belcourt, Acting Irrigation Project Manager, 220 Project Drive, St. Ignatius, MT 59865. Telephone: (406) 745-2661. |
| Fort Hall Irrigation Project | David Bollinger, Irrigation Project Manager, 36 Bannock Avenue, Fort Hall, ID 83203-0220. Telephone:(208) 238-1992. |
| Wapato Irrigation Project | Pete Plant, Project Administrator, 413 South Camas Avenue, Wapato, WA 98951-0220. Telephone: (509) 877-3155. |
| Rocky Mountain Region Contacts | |
| Christian Bends, Acting Regional Director, Bureau of Indian Affairs, Rocky Mountain Regional Office, 2021 4th Avenue North, Billings, MT 59101. Telephone: (406) 247-7943. | |
| Blackfeet Irrigation Project | Kenneth Bird, Superintendent, Edward Chief All Over, Administrative Officer, P.O. Box 880, Browning, MT 59417. Telephones: Superintendent (406) 338-7544; Administrative Officer (406) 338-7544. |
| Crow Irrigation Project | Harold “Jess” Brien, Superintendent, Richard Taptto, Acting Irrigation Project Manager (BIA), (Project O&M performed by Water Users Association), P.O. Box 69, Crow Agency, MT 59022. Telephones: Superintendent (406) 638-2672; Acting Irrigation Project Manager (406) 698-5631. |
| Fort Belknap Irrigation Project | Mark Azure, Superintendent, Richard Taptto, Acting Irrigation Project Manager (BIA), (Project O&M contracted to Tribes under PL 93-638),158 Tribal Way, Suite B, Harlem, MT 59526. Telephones: Superintendent (406) 353-2901; Irrigation Project Manager, Tribal Office (406) 353-8454. |
| ( printed page 13859) | |
| Fort Peck Irrigation Project | Jamie McKee, Acting Superintendent, Richard Taptto, Acting Irrigation Project Manager (BIA), (Project O&M performed by Fort Peck Water Users Association), P.O. Box 637, Poplar, MT 59255. Telephones: Superintendent (406) 768-5312; Acting Irrigation Project Manager (406) 698-5631. |
| Wind River Irrigation Project | Antonio Pingree, Superintendent, Richard Taptto, Acting Irrigation Project Manager (BIA), (Project O&M for Little Wind, Johnstown, and Lefthand Units contracted to Tribes under PL 93-638; Little Wind-Ray and Upper Wind Units O&M performed by Ray Canal, A Canal, and Crowheart Water Users Associations), P.O. Box 158, Fort Washakie, WY 82514. Telephones: Superintendent (307) 332-7810; Acting Irrigation Project Manager (406) 698-5631. |
| Southwest Region Contacts | |
| Doug Hickman, Acting Regional Director, Bureau of Indian Affairs, Southwest Regional Office, 1001 Indian School Road NW, Albuquerque, NM 87104. Telephone: (505) 563-3103. | |
| Pine River Irrigation Project | Priscilla Bancroft, Superintendent, Vickie Begay, Irrigation Project Manager, P.O. Box 315, Ignacio, CO 81137-0315. Telephones: Superintendent (970) 236-4654; Irrigation Project Manager (970) 236-4161. |
| Western Region Contacts | |
| Jessie Durham, Regional Director, Bureau of Indian Affairs, Western Regional Office, 2600 North Central Avenue, 4th Floor Mailroom, Phoenix, AZ 85004. Telephone: (480) 535-1552. | |
| Colorado River Irrigation Project | Davetta Ameelyenah, Superintendent, Irrigation Project Manager (Vacant), (Portions of Project O&M contracted to Colorado River Indian Tribes under PL 93-638), 12124 1st Avenue, Parker, AZ 85344. Telephones: Superintendent (928) 669-7111; Poston Irrigation Office (928) 662-4392; Water Resources/Irrigation Department of Colorado River Indian Tribes (928) 669-1312. |
| Duck Valley Irrigation Project | Jane Jackson-Bear, Superintendent, (Project O&M compacted to Shoshone-Paiute Tribes under PL 93-638), 2719 Argent Avenue, Suite 4, Gateway Plaza, Elko, NV 89801. Telephones: Superintendent (775) 738-0569; Tribal Office (208) 759-3100. |
| Yuma Project, Indian Unit | Davetta Ameelyenah, Acting Superintendent, (Bureau of Reclamation (BOR) owns the Project and is responsible for O&M), 256 South Second Avenue, Suite D, Yuma, AZ 85364. Telephones: Superintendent (928) 782-1202; BOR Area Office Manager (928) 343-8100. |
| San Carlos Irrigation Project (Indian Works and Joint Works) | Ferris Begay, Project Manager (BIA), Clarence Begay, Supervisory Civil Engineer (BIA), (Portions of Indian Works O&M compacted to Gila River Indian Community under PL 93-638; Joint Control Board is responsible for portions of Joint Works maintenance pursuant to Gila River Indian Community Water Rights Settlement Act of 2004, 118 Stat. 3499), 13805 North Arizona Boulevard, Coolidge, AZ 85128. Telephones: Project Manager (520) 723-6225; Supervisory Civil Engineer (520) 723-6203; Gila River Indian Irrigation & Drainage District (520) 562-6720; Joint Control Board (520) 562-9760, (520) 723-5408. |
| Uintah Irrigation Project | Seann Woster, Acting Superintendent, Irrigation System Manager (vacant, BIA), (Project O&M performed by Uintah Indian Irrigation Project Operation and Maintenance Company), P.O. Box 130, Fort Duchesne, UT 84026. Telephones: Superintendent (435) 722-4300; Uintah Indian Irrigation Operation and Maintenance Company (435) 724-5200. |
| Walker River Irrigation Project | Cheryl Sam, Acting Superintendent, 311 East Washington Street, Carson City, NV 89701. Telephone: (775) 887-3500. |

What irrigation assessments or charges are proposed for adjustment by this notice?

The rate table below contains final CY 2026 rates for irrigation projects where we recover costs of administering, operating, maintaining, and rehabilitating them. The table also contains proposed CY 2027 rates for all irrigation projects. An asterisk immediately following the rate category notes irrigation projects where rates are proposed for adjustment.

| Project name | Rate category | Final
2026 rate | Proposed
2027 rate |
| --- | --- | --- | --- |
| Northwest Region Rate Table | | | |
| Flathead Irrigation Project (See Note #1) | Basic per acre—A * | $39.00 | $46.00 |
| | Basic per acre—B * | 19.50 | 23.00 |
| | Minimum Charge per tract * | 200.00 | 220.00 |
| Fort Hall Irrigation Project | Basic per acre * | 68.00 | 68.50 |
| | Minimum Charge per tract * | 44.50 | 45.00 |
| Fort Hall Irrigation Project—Minor Units | Basic per acre * | 46.50 | 47.50 |
| | Minimum Charge per tract * | 44.50 | 45.00 |
| Fort Hall Irrigation Project—Michaud Unit | Basic per acre * | 77.50 | 78.50 |
| | Pressure per acre * | 120.00 | 122.00 |
| | Minimum Charge per tract * | 44.50 | 45.00 |
| Wapato Irrigation Project—Toppenish/Simcoe Units | Minimum Charge per bill * | 28.00 | 28.50 |
| | Basic per acre * | 28.00 | 28.50 |
| Wapato Irrigation Project—Ahtanum Units | Minimum Charge per bill * | 35.00 | 36.50 |
| | Basic per acre * | 35.00 | 36.50 |
| Wapato Irrigation Project—Satus Unit | Minimum Charge per bill * | 100.00 | 120.00 |
| | “A” Basic per acre * | 86.00 | 89.00 |
| | “B” Basic per acre * | 92.00 | 95.00 |
| ( printed page 13860) | | | |
| Wapato Irrigation Project—Additional Works | Minimum Charge per bill * | 100.00 | 120.00 |
| | Basic per acre * | 87.00 | 90.00 |
| Wapato Irrigation Project—Water Rental | Minimum Charge per bill * | 100.00 | 120.00 |
| | Basic per acre * | 100.00 | 125.00 |
| Rocky Mountain Region Rate Table | | | |
| Blackfeet Irrigation Project | Basic-per acre | 22.00 | 22.00 |
| Crow Irrigation Project—Willow Creek O&M (includes Agency, Lodge Grass #1, Lodge Grass #2, Reno, Upper Little Horn, and Forty Mile Units) | Basic-per acre | 34.00 | 34.00 |
| Crow Irrigation Project—All Others (includes Bighorn, Soap Creek, and Pryor Units) | Basic-per acre | 34.00 | 34.00 |
| Crow Irrigation Project—Two Leggins Unit | Basic-per acre | 17.00 | 17.00 |
| Crow Irrigation Two Leggins Drainage District | Basic-per acre | 5.00 | 5.00 |
| Fort Belknap Irrigation
Project | Basic-per acre | 25.00 | 25.00 |
| Fort Peck Irrigation Project | Basic-per acre | 35.00 | 35.00 |
| Wind River Irrigation Project—Units 2, 3 and 4 | Basic-per acre | 28.00 | 28.00 |
| Wind River Irrigation Project—Unit 6 | Basic-per acre | 28.00 | 28.00 |
| Wind River Irrigation Project—LeClair District (See Note #2) | Basic-per acre | 47.00 | 47.00 |
| Wind River Irrigation Project—Crow Heart Unit | Basic-per acre | 17.50 | 17.50 |
| Wind River Irrigation Project—A Canal Unit | Basic-per acre | 17.50 | 17.50 |
| Wind River Irrigation Project—Riverton Valley Irrigation District (See Note #2) | Basic-per acre | 30.65 | 30.65 |
| Southwest Region Rate Table | | | |
| Pine River Irrigation Project (see Note #3) | Minimum Charge per tract * | 75.00 | 75.00 |
| | Basic-per acre * | 24.50 | 25.00 |
| Western Region Rate Table | | | |
| Colorado River Irrigation Project | Basic per acre up to 5.75 acre-feet * | 85.00 | 93.00 |
| | Excess Water per acre-foot over 5.75 acre-feet | 18.00 | 18.00 |
| Duck Valley Irrigation Project | Basic per acre * | 12.00 | 13.00 |
| Yuma Project, Indian Unit (See Note #4) | Basic per acre up to 5.0 acre-feet | 222.50 | ( + ) |
| | Excess Water per acre-foot over 5.0 acre-feet | 35.00 | ( + ) |
| | Basic per acre up to 5.0 acre-feet (Ranch 5) | 222.50 | ( + ) |

| San Carlos Irrigation Project (Joint Works) (See Note #5) | Basic per acre * | | 28.00 | 24.00 |
| | Proposed 2027 Construction Water Rate Schedule: | | | |
| | | Off project construction | On project construction—gravity water | On project construction—pump water |
| | Administrative Fee | $300.00 | $300.00 | $300.00. |
| | Usage Fee | $250.00 per month | No Fee | $100.00 per acre foot. |
| | Excess Water Rate † | $5.00 per 1,000 gal. | No Charge | No Charge. |

| Project name | Rate category | Final
2026 rate | Proposed
2027 rate |
| --- | --- | --- | --- |
| San Carlos Irrigation Project (Indian Works) (See Note #6) | Basic per acre * | $98.85 | $94.85 |
| Uintah Irrigation Project | Basic per acre | 25.00 | 25.00 |
| | Minimum Bill | 25.00 | 25.00 |
| Walker River Irrigation Project | Basic per acre * | 32.00 | 34.00 |
|  Notes irrigation projects where rates are adjusted. | | | |
| + These rates have not yet been determined. | | | |
| † The excess water rate applies to all water used in excess of 50,000 gallons in any one month. | | | |
| *Note #1** The Minimum Charge per tract for Flathead Irrigation Project for 2026 will apply to parcels sized 4.54 acres or smaller. Starting in 2027, the Minimum Charge is proposed to apply to parcels sized 4.78 acres or smaller. | | | |
| Note #2 O&M rates for LeClair and Riverton Valley Irrigation Districts apply to Trust lands that are serviced by each irrigation district. The annual O&M rates are based on budgets submitted by LeClair and Riverton Valley Irrigation Districts, respectively. ( printed page 13861) | | | |
| Note #3 The Minimum Charge per tract for Pine River Irrigation Project currently applies to parcels sized 3.33 acres or smaller but does not apply to parcels billed to the Southern Ute Indian Tribe (SUIT). Starting in 2027, the Minimum Charge is proposed to apply to any parcel—including parcels billed to SUIT—with an assessment totaling less than $75.00 (whereby the Minimum Charge of $75.00 will instead be charged as a flat fee). | | | |
| Note #4 The O&M rate for the Yuma Project, Indian Unit has two components. The first component of the O&M rate is established by the Bureau of Reclamation (BOR), the owner and operator of the Project; the BOR rate is $222.50 for 2026 but has not been established for 2027. The second component of the O&M rate is established by BIA to cover administrative costs, which includes billing and collections for the Project. The final 2026 BIA rate component is $4.50 per acre. The proposed 2027 BIA rate component is $4.50 per acre. | | | |
| Note #5 The Construction Water Rate Schedule identifies fees assessed for use of irrigation water for non-irrigation purposes. | | | |
| Note #6 The O&M rate for the San Carlos Irrigation Project—Indian Works has three components. The first component is established by BIA San Carlos Irrigation Project—Indian Works; the final 2026 rate is $55.85 per acre and the proposed 2027 rate is $55.85. The second component is established by BIA San Carlos Irrigation Project—Joint Works; the final 2026 rate is $28.00 per acre and the 2027 proposed rate is $24.00. The third component is established by the San Carlos Irrigation Project Joint Control Board (comprised of representatives from the Gila River Indian Community and the San Carlos Irrigation and Drainage District); the 2026 and 2027 rate is $15.00 per acre. | | | |

Consultation and Coordination With Tribal Governments (Executive Order 13175)

The Department of the Interior strives to strengthen its government-to-government relationship with Indian Tribes through a commitment to consultation with Indian Tribes and recognition of their right to self-governance and Tribal sovereignty. We have evaluated this notice under the Department's consultation policy and under the criteria of Executive Order 13175 and have determined there to be substantial direct effects on federally recognized Tribes because the irrigation projects are located on or associated with Indian reservations. To fulfill its consultation responsibility to Tribes and Tribal organizations, BIA communicates, coordinates, and consults on a continuing basis with these entities on issues of water delivery, water availability, and costs of administration, operation, maintenance, and rehabilitation of projects that concern them. This is accomplished at the individual irrigation project by project, agency, and regional representatives, as appropriate, in accordance with local protocol and procedures. This notice is one component of our overall coordination and consultation process to provide notice to, and request comments from, these entities when we adjust irrigation assessment rates.

Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use (Executive Order 13211)

The proposed rate adjustments are not a significant energy action under the definition in Executive Order 13211. A statement of energy effects is not required.

Regulatory Planning and Review (Executive Order 12866), as Amended by Executive Order 14094)

These proposed rate adjustments are not a significant regulatory action and do not need to be reviewed by the Office of Management and Budget under Executive Order 12866, as amended by Executive Order 14094.

Regulatory Flexibility Act

These proposed rate adjustments are not a rule for the purposes of the Regulatory Flexibility Act because they establish “a rule of particular applicability relating to rates.” 5 U.S.C. 601(2).

Unfunded Mandates Reform Act of 1995

These proposed rate adjustments do not impose an unfunded mandate on State, local, or Tribal governments in the aggregate, or on the private sector, of more than $130 million per year. They do not have a significant or unique effect on State, local, or Tribal governments or the private sector. Therefore, the Department is not required to prepare a statement containing the information required by the Unfunded Mandates Reform Act (2 U.S.C. 1531 et seq.).

Takings (Executive Order 12630)

These proposed rate adjustments do not effect a taking of private property or otherwise have “takings” implications under Executive Order 12630. The proposed rate adjustments do not deprive the public, State, or local governments of rights or property.

Federalism (Executive Order 13132)

Under the criteria in section 1 of Executive Order 13132, these proposed rate adjustments do not have sufficient federalism implications to warrant the preparation of a federalism summary impact statement because they will not affect the States, the relationship between the national government and the States, or the distribution of power and responsibilities among the various levels of government. A federalism summary impact statement is not required.

Civil Justice Reform (Executive Order 12988)

This notice complies with the requirements of Executive Order 12988. Specifically, in issuing this notice, the Department has taken the necessary steps to eliminate drafting errors and ambiguity, minimize potential litigation, and provide a clear legal standard for affected conduct as required by section 3 of Executive Order 12988.

Paperwork Reduction Act of 1995

These proposed rate adjustments do not affect the collections of information which have been approved by the Office of Information and Regulatory Affairs, Office of Management and Budget (OMB) under the Paperwork Reduction Act of 1995. The OMB Control Number is 1076-0141 and expires March 31, 2026.

National Environmental Policy Act

The Department has determined that these proposed rate adjustments do not constitute a major Federal action significantly affecting the quality of the human environment. A detailed statement under the National Environmental Policy Act of 1969 (NEPA) is not required because the proposed rate adjustments are of an administrative, financial, legal, technical, or procedural nature. (For further information see 43 CFR 46.210(i)). We have also determined that the proposed rate adjustments would not involve any of the extraordinary circumstances listed in 43 CFR 46.215 that would require further analysis under NEPA.

William Henry Kirkland III,

Assistant Secretary—Indian Affairs.

[FR Doc. 2026-05577 Filed 3-20-26; 8:45 am]

BILLING CODE 4337-15-P

Published Document: 2026-05577 (91 FR 13856)