Monday Briefing — @AlamosaCitizen #SanLuisValley #RioGrande

From email from the Alamosa Citizen:

October 21, 2024

Wet and dry 

In the case of the Upper Rio Grande Basin, two conflicting conditions can both be true at once. On one hand, the year has brought much more rain than is typical. With more than an inch of rain over the weekend, the San Luis Valley has seen more than 10 inches of total precipitation so far in 2024, or 3 inches above what’s normal, according to the National Weather Service. On the other hand, low snowpack in the San Juans and Sangre de Cristos from a winter ago left Valley farmers with less than a normal water year for irrigation. On May 6, the Rio Grande Basin had half of the typical snowpack, according to the Colorado Climate Center, and we know the unconfined aquifer relied on by so many irrigators remains a major problem. The state currently has a five percent curtailment on groundwater wells in the San Luis Valley. In calculating its downstream water obligations to New Mexico under the Rio Grande Compact, Colorado is anticipating the Rio Grande to finish the irrigation season at 78 percent of what’s normal for flows and 80 percent on the Conejos River, according to Craig Cotten, division engineer for the Colorado Division of Water Resources.

San Luis Valley Groundwater

New conservancy district forms

Winding its way through Colorado Division 3 Water Court is an application from a group of Valley irrigators to form the Southern Colorado Water Conservancy District and Groundwater Management Subdistrict. The initial board of directors would be Art Artaechevarria, William Meyers, and Les Alderete, according to the application submitted to state water court in Alamosa. The formation of a new water conservancy district will allow the group of farmers to manage their own affairs when it comes to meeting Colorado’s rules governing groundwater pumping in the San Luis Valley. Like the Rio Grande Water Conservation District and its subdistrict formations, the new SOCO Water Conservancy District would impose a mill levy tax upon the farms operating within it to pay for its operations and strategy to adhere to the state’s groundwater pumping rules. The Southern Colorado Water Conservancy District has membership among farmers in Saguache, Rio Grande and Alamosa counties. The new water conservancy district will include approximately 250 wells, and in its application it tells the water court that the subdistrict plans to obtain approximately 6,000 acre-feet to augment depletions from wells and estimates it will cost $40 million to obtain the water. There’s a lot more to this developing water story. More in the coming week.

Rio Grande and Pecos River basins. Map credit: By Kmusser – Own work, Elevation data from SRTM, drainage basin from GTOPO [1], U.S. stream from the National Atlas [2], all other features from Vector Map., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=11218868

Hearing this week on Rio Grande Compact case

The decade-long Rio Grande Compact case of Texas v. New Mexico and Colorado will have a hearing before retired Chief Judge D. Brooks Smith on Wednesday, Oct. 23, in Denver. Smith, who retired as chief judge of the U.S. Third Circuit Court of Appeals in 2021, was appointed new Special Master in the case by the U.S. Supreme Court in July. The appointment came after the U.S. Supreme Court agreed with the U.S. Department of Interior and denied a consent decree that the states had negotiated which would have settled the case. Smith now takes over the case and is expected to set a course of action during the hearing this week.

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