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Arkansas River Compact Administration (ARCA)

Documents

ARCA


ARCA - 1980 Operating Plan

Resolution concerning an operating plan for John Martin Reservoir


ARCA Annual Reports

Annual Reports by the Administration to the governors of the states of Colorado and Kansas and to the President of the United States covering the Compact year (November 1 - October31).


ARCA Budget Documents

These documents include the current budget, proposed budget, budget and assessments summary, and audit report.


ARCA By-Laws

By-Laws of the Arkansas River Compact Administration


ARCA Meeting Minutes

Minutes of the Administration's meetings from 1949 to present.


ARCA Resolutions

Resolutions adopted by the Administration.


Arkansas River Compact

Agreement between the States of Colorado and Kansas on the waters of the Arkansas River Basin.


Assistant Operations Secretary (AOS) Reports

Submitted to the Operations Committee and to ARCA.


Offset Account Crediting Agreement

Agreement concerning the Offset Account in John Martin Reservoir for Colorado pumping, determination of credits for delivery of water released for Colorado pumping, and related matters.


Offset Account Joint Reports

Joint report of the States that provides ARCA with their review of the Offset Account Operations.


Offset Account Reports

Submitted to the Operations Committee and to ARCA.


Offset Account Resolution

Resolution concerning an Offset Account in John Martin Reservoir


Operations Secretary (OS) Reports

Submitted to the Operations Committee and to ARCA.


Section II Agreement

Agreement on determination of transit loss under the provision of Section II E (4) of the 1980 Operating Plan


Ten-Year Compact Compliance Accounting Tables

Moving ten-year period of Compact compliance accounting. In the moving ten-year period the first year in that period will drop off and the most recent completed H-I Model year will be added on.


Trinidad Operating Principles

Operating Principles for the Trinidad Dam and Reservoir Project.


Colorado Rules and Regulations


Colorado Measurement Rules

Rules governing the measurement of tributary ground water diversions located in the Arkansas River Basin in Colorado.


Colorado Use Rules

Rules and regulations governing the diversion and use of tributary ground water in the Arkansas River Basin in Colorado.


Irrigation Improvement Rules

Compact rules governing improvements to surface water irrigation systems in the Arkansas River Basin in Colorado.


U.S. Supreme Court


2011 Agreement as Amended August, 2015

Agreement on H-I Model changes to address increases in irrigation efficiency for pumped groundwater.


Amended Appendix A.4 (6/26/2009)
Agreement regarding the Colorado Use Rules, PDF evaluation, implementation processes, and related matters, and not to terminate the Offset Account Resolution.


Amended Appendix B.1 (8/2015)

Appendix B.1 includes procedures for annual updates, calculation of depletions and accretions, changes to the H-I Model, reporting, inspection, and evaluation of the Colorado Use Rules.  This appendix was amended in 2015 to incorporate the H-I Model changes laid out in the 2011 Agreement as Amended August, 2015.


Amended Appendix C.1 (8/2015)

Appendix C.1 includes H-I Model documentation.  This appendix was amended in 2015 to incorporate the H-I Model changes laid out in the 2011 Agreement as Amended August, 2015 and the Agreement on Implementation of John Martin Reservoir Revised Elevation-Area-Capacity Tables in the H-1 Model (2015 Agreement).


Decree-Volume 1 (2/4/2008)

Fifth and Final Report of Special Master, Arthur L. Littleworth


Decree-Volume 2 (2/4/2008)

Fifth and Final Report of Special Master, Arthur L. Littleworth - Proposed Judgment and Decree


Decree-Volume 3 (2/4/2008)

Fifth and Final Report of Special Master, Arthur L. Littleworth - H-I Model documentation and usable flow methodology


Special Masters Reports

Includes above documents and additional Special Master Reports.  Click link, then scroll to bottom of page.