# CVP South-of-Delta Irrigation Allocation Revised to 25% _May 28, 2026_ > Bureau of Reclamation raised CVP South-of-Delta irrigation to 25% and M&I to 75% on May 19. Elephant Butte sits at 208,870 af, 42% below the 5-year median, as the USGS-tracked Rio Grande gauge records zero flow. CVP South-of-Delta irrigation allocations were revised to **25%** on May 19, up from 20%, per the Bureau of Reclamation. Municipal and industrial contractors on the same reach moved to **75%**, up from 70%. [Chart: Elephant Butte Reservoir storage](https://the-waterline.com/reservoir/elephant-butte-reservoir) ([data](https://the-waterline.com/reservoir/elephant-butte-reservoir.md) — chart image: https://the-waterline.com/charts/reservoir/elephant-butte-reservoir/chart.png) - **Elephant Butte Reservoir** (Reclamation): 208,870 af, down 7% on the week and 42% below the 5-year median. Storage is in deficit heading into peak irrigation demand. - **Blue Mesa Reservoir** (Reclamation): 343,785 af, down 4% on the week and 32% below the 5-year median. - **Rio Grande** (USGS): 0.0 cfs at the tracked gauge this week. - **Idaho drought coverage**: 85% of area in D1 or worse per the US Drought Monitor, up 7 pts on the week and 62 pts above the 5-year median. - **Wyoming and Klamath County, OR**: 98% and 100% in drought (D1+), 69 and 62 pts above the 5-year median per the US Drought Monitor. - **San Juan-Colorado streamflow**: 856 cfs per USGS, 146% above the 5-year median and up 37% on the week. **Standing allocations:** SWP statewide stands at 45% (California DWR, May 1). CVP North-of-Delta Sacramento River irrigation stands at 100% (Reclamation, February 26). Neither changed this week. *Data note: One CVP data series has not updated in over two weeks. Related figures from that series may be stale.* --- Canonical URL: https://the-waterline.com/issues/2026-05-28