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# Western water statistics

The headline numbers, each with its data date and source.

## Total tracked storage

Across 20 tracked western reservoirs, total storage is 36.91M af, 12% below the combined 5-yr median for the date (data through Jul 25, 2026).

_Data through Jul 25, 2026._

## Lake Powell

Lake Powell water level storage is 5.43M af, 32% below its 5-yr median for the date.

_Data through Jul 25, 2026._

About this data: US Bureau of Reclamation RISE; California reservoirs via CA DWR CDEC · End-of-day reservoir storage · Lake Powell water level · through Jul 25, 2026

Source page: https://the-waterline.com/reservoir/lake-powell.md

## Lake Mead

Lake Mead water level storage is 7.06M af, 16% below its 5-yr median for the date.

_Data through Jul 25, 2026._

About this data: US Bureau of Reclamation RISE; California reservoirs via CA DWR CDEC · End-of-day reservoir storage · Lake Mead water level · through Jul 25, 2026

Source page: https://the-waterline.com/reservoir/lake-mead.md

## Furthest below normal

Elephant Butte Reservoir water level is the tracked reservoir furthest below normal, 77% under its 5-yr median (29,804 af).

_Data through Jul 25, 2026._

About this data: US Bureau of Reclamation RISE; California reservoirs via CA DWR CDEC · End-of-day reservoir storage · Elephant Butte Reservoir water level · through Jul 25, 2026

Source page: https://the-waterline.com/reservoir/elephant-butte-reservoir.md

## Driest basin

Green-Colorado basin storage is the furthest below normal of the tracked basins, 13% under its 5-yr median.

_Data through Jul 25, 2026._

About this data: US Bureau of Reclamation RISE; California reservoirs via CA DWR CDEC · Reservoir storage summed across the basin · Green-Colorado basin · through Jul 25, 2026

Source page: https://the-waterline.com/basin/green-colorado.md

## Most drought coverage

Utah has the most area in drought of the tracked states, 100% in drought (D1-D4) or worse.

_Data through Jul 21, 2026._

About this data: US Drought Monitor (National Drought Mitigation Center, USDA, NOAA) · Share of area in moderate drought (D1) or worse · Utah · through Jul 21, 2026

Source page: https://the-waterline.com/drought/utah.md

## States majority in drought

9 of 11 tracked western states have at least half their area in drought (D1-D4) or worse (US Drought Monitor, data through Jul 21, 2026).

_Data through Jul 21, 2026._

## SWP allocation

The State Water Project statewide allocation stands at 45%.

_Data through May 1, 2026._

About this data: California Department of Water Resources, State Water Project allocation · Allocation as a percent of contract supply · California · through May 1, 2026

Source page: https://the-waterline.com/allocation/swp-statewide-swp.md

## CVP south-of-Delta ag

The Central Valley Project south-of-Delta agricultural allocation stands at 25%.

_Data through May 19, 2026._

About this data: US Bureau of Reclamation, Central Valley Project allocation · Allocation as a percent of contract supply · California · through May 19, 2026

Source page: https://the-waterline.com/allocation/cvp-south-of-delta-agricultural.md

## CVP Friant Class 1

The Central Valley Project Friant Division Class 1 allocation stands at 100%.

_Data through Feb 26, 2026._

About this data: US Bureau of Reclamation, Central Valley Project allocation · Allocation as a percent of contract supply · California · through Feb 26, 2026

Source page: https://the-waterline.com/allocation/cvp-friant-division-class-1.md

## Lowest streamflow vs normal

Yampa River near Maybell is running 72% below its 5-yr median discharge, the furthest below normal of the tracked gauges.

_Data through Jul 25, 2026._

About this data: US Geological Survey (USGS) · Daily mean streamflow (discharge) · Yampa River near Maybell · through Jul 25, 2026

Source page: https://the-waterline.com/streamflow/yampa-river-near-maybell.md

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