Who Loses Colorado River Water First? The Economics of Drought

Who loses Colorado River water first? Follow the water, the rights and the money. A regional economic briefing: farms, Phoenix, Tucson, Las Vegas, Southern California, Mexico and tribal access; why Reno and Flagstaff face different direct constraints; why Denver and Albuquerque remain connected; and what El Niño could change. Evidence cutoff: October 16, 2026. Observations, announced rules and our conditional outlook are kept separate. The state reduction split depends on implementing the proposed sharing agreement. No universal dry-tap date or runoff probabilities are claimed. Like and subscribe for the follow-up after winter. We are preserving the dated forecast and will compare it with actual snow, runoff and operating decisions. CHAPTERS 00:00 Who loses water first? 00:42 The river’s balance sheet 02:15 The new operating rules 03:46 Farms and water rights 05:22 Phoenix and Tucson 06:51 Las Vegas and Southern California 09:06 Mexico, tribal rights and essential access 10:24 Nearby systems with different constraints 11:59 The economics of a saved acre-foot 14:03 El Niño and the two Almanacs 15:36 Three conditional outcomes 16:56 The water czar’s dashboard SOURCES 2026 runoff: NIDIS, Oct 15 https://www.drought.gov/drought-statu... 2027–28 operating plan; conditional state split https://www.doi.gov/pressreleases/int... Arizona legal challenge announced Oct 16; state position, not ruling https://azgovernor.gov/office-arizona... Mexico: Minute 334 https://cila.sre.gob.mx/cilanorte/ind... Historical direct human consumption (2000–2019) https://watermanagement.ucdavis.edu/a... Phoenix sources https://www.phoenix.gov/administratio... Tucson recharge and recovery https://tucsononewater.com/our-water-... Southern Nevada sources and indoor recycling https://www.snwa.com/water-resources/... Los Angeles / MWD sources https://webprod.ladwp.com/who-we-are/... Imperial–San Diego conserved-water transfer https://www.waterboards.ca.gov/waterr... Coachella sources https://cvwd.org/154/Where-does-my-wa... Coachella entitlement exchanges https://www.cvwd.org/170/Californias-... Denver source mix https://www.denverwater.org/tap/where... Denver storage: Oct 1 actual; Oct 12 update https://www.denverwater.org/tap/octob... Albuquerque: San Juan–Chama https://www.abcwua.org/your-drinking-... Reno / Sparks sources https://tmwa.com/your-water/topics-fa... Flagstaff sources https://flagstaff.az.gov/2373/Drinkin... Navajo Nation water infrastructure https://nndwr.navajo-nsn.gov/ Tribal water marketing agreements https://www.azwater.gov/public-notice... Historical Phoenix conservation agreement: OIG, 2024 https://www.doioig.gov/sites/default/... NOAA ENSO discussion: Oct 8 issue https://www.cpc.ncep.noaa.gov/product... Farmers’ Almanac: 2026–27 https://www.farmersalmanac.com/extend... Old Farmer’s Almanac: 2026–27 https://www.almanac.com/winter-extend... METHOD Runoff percentages are not reservoir fullness. The 74% irrigation share is a historical share of direct human consumption, excluding reservoir evaporation and natural vegetation. The $400/AF contract is historical, not a current price. The return-flow example uses arbitrary units: 100−40 = 80−20 = 60 consumed. Maps use Natural Earth geography; dashed supply/transfer links and climate diagrams are schematic. Scenarios have no assigned probabilities. Synthetic narration via ElevenLabs. Original maps, plots and animation by Unit Economics. Corrections welcome: include a timestamp and primary source. #ColoradoRiver #WaterEconomics #UnitEconomics