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# CVP South-of-Delta Ag Allocation Raised to 25%

_May 21, 2026_

> Bureau of Reclamation raises CVP South-of-Delta irrigation to 25% and M&I to 75% on May 19. Wyoming drought covers 98% of the state, 69 pts above the 5-year median. Elephant Butte sits at 223,415 af, 38% below the 5-year median.

The Bureau of Reclamation raised CVP South-of-Delta irrigation allocations to **25%** and municipal and industrial allocations to **75%**, announced May 19, up 5 points each from prior figures of 20% and 70%. The revisions cover water service and repayment contractors south of the Sacramento-San Joaquin Delta.


[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** (Bureau of Reclamation): 223,415 af, down 4% on the week and 38% below the 5-year median. The tracked Rio Grande gauge read 0 cfs (USGS), leaving Elephant Butte as the near-term supply buffer for lower Rio Grande deliveries.
- **Wyoming drought** (US Drought Monitor): 98% of the state in D1 or worse, 69 pts above the 5-year median. Colorado at 96%, 67 pts above the 5-year median. Neither changed on the week.
- **Oregon and Idaho drought** (US Drought Monitor): Oregon at 83% coverage, 58 pts above the 5-year median. Idaho at 79%, 55 pts above. Both unchanged week over week.
- **Yuma County drought** (US Drought Monitor): 67% in drought, up 47 pts on the week and 17 pts above the 5-year median. The largest week-over-week drought shift in this issue.
- **Trinity Lake** (Bureau of Reclamation): 2.18M af, down 1% on the week and 34% above the 5-year median. Above-normal storage gives CVP north-of-Delta operations room through late spring drawdown.
- **San Juan-Colorado** (USGS): 626 cfs, 81% above the 5-year median. Late-season runoff is pushing upper Colorado flows above normal.

**Allocations (Bureau of Reclamation and DWR):**
- CVP South-of-Delta: irrigation 25%, M&I 75% (revised May 19)
- CVP North-of-Delta, Sacramento River irrigation: 100% (announced Feb. 26, standing)
- SWP statewide: 45% (announced May 1, standing)

*Data note: One CVP data series has not updated in over two weeks. Treat any CVP storage figures as stale until refreshed.*

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