Welcome to the Colorado-Kansas Arkansas River Compact Administration’s website!
We welcome any suggestions, please comment using the Contact page.

Upcoming Meetings


2020 ARCA Annual Meeting

The 2020 ARCA Annual Meeting will be held in Lamar, CO. Meeting location and times will be determined closer to the meeting date.

Committees of ARCA

Tuesday, December 8th, 2020

Annual Meeting
Wednesday, December 9th, 2020

2019 ARCA Annual Meeting Materials
– 2019 Meeting Notice and Agenda
– Available meeting materials from 2019 meeting

Model Domain Area within Arkansas River Basin

Photo of John Martin Reservoir
courtesy of Army Corps of Engineers, Albuquerque District