New Mexico journalist John Fleck, whose well-informed blog has long served as a sort of news pathfinder regarding Colorado River issues, just posted a lengthy take on the briefing to be co-sponsored by the Arizona Department of Water Resources and the Central Arizona Project in Tempe on June 28.

The briefing, which is to feature Bureau of Reclamation Commissioner Brenda Burman as keynote speaker, will examine the systemic risks posed by potential shortages on the Colorado River.

The event also represents the kick-off of a continuing Arizona discussion on how to adopt and implement the plans of the Lower Basin states of Arizona, California and Nevada for contending with a delivery shortfall, known as the Drought Contingency Plan (see details of the briefing below).

The June 28 event will be livestreamed.

According to Fleck, a shortfall in deliveries of Colorado River water will constitute a lesson in the difference between an “allocation” of water from the river and an “entitlement” to that water. Fleck illustrates the various challenges facing Colorado River water-users with an examination of agriculture in Pinal County, where the river water delivered via the CAP canal system is subject to availability. It’s an interesting analysis and well worth a read.

The June 28 event:

What: An Arizona Discussion of the Risks to Arizona’s Colorado River Supply and the Colorado River Drought Contingency Plan

Who: Panel will include Bureau Commissioner Brenda Burman; ADWR Director Tom Buschatzke; and, CAP General Manager Ted Cooke; the event also will feature presentations from BOR staff on the conditions on the Colorado River and the potential for delivery shortfalls in coming years

Where: Arizona Historical Society Museum at the Arizona Heritage Center at Papago Park – hosted in the auditorium; 1300 N. College Ave, Tempe 85281

When: June 28, 1-4 pm.

How: The briefing will be livestreamed online; visit azwater.gov or CentralArizonaProject.com for details