Don Pedro Reservoir lake and shoreline

Don Pedro Reservoir Water Level

Officially Don Pedro Reservoir (Tuolumne River)

California

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Conditions that may affect safety or access. Always verify with official sources before heading out.

Lake-specific pages: Weather · Lake level.

Alert details

Don Pedro Reservoir

Don Pedro Reservoir is currently 43.8 feet below full pool, with a water-surface elevation of 786.2 feet.

786.23 ft · Updated 2 hours ago · U.S. Geological Survey (USGS)

Current level

786.23ft

−43.77 ft vs full pool

Low

Vs full pool

Since last reading

Down 0.23 ft

Previous readingOct 4786.62 ft

7-day change

Down 1.15 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 6.91 ft

31 daily readings in the last 30 days

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Water Level History

Current
786.23 ft
24h
-0.23 ft
7d
-1.15 ft
30d
-6.91 ft

Elevation (ft) NGVD29 · MSL

Reference line is designed full pool.

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Lake Level Context

Level remains below the full pool

Don Pedro Reservoir is currently 786.23 ft, 43.77 ft below its full pool. The lake has fallen 1.15 ft over the past 7 days and 6.91 ft over the past 30 days.

Don Pedro Reservoir Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

43.77 ft below full pool

Current level
786.23 ft
Full pool
830 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
U.S. Geological Survey (USGS)

Reference levels

  • Full pool830 ft
  • Flood stage850 ft

Watershed drought

Abnormally Dry

Abnormally dry (D0), not official drought.

Severity

NoneExtreme
Trend
Stable

Watershed drought conditions

Tuolumne County, CA

Abnormally Dry

Abnormally Dry. The surrounding county is abnormally dry, which is not official drought.. Trend: Stable compared with last week. Official drought no

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought

No

Current conditions are classified as Abnormally Dry (D0), which is not considered official drought.

U.S. Drought Monitor · map date Sep 29, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Tuolumne County, CA

Daily level summary

DateLevelChange
Oct 5, 2026786.39-0.23
Oct 4, 2026786.62-0.18
Oct 3, 2026786.8-0.14
Oct 2, 2026786.94-0.18
Oct 1, 2026787.12-0.16
Sep 30, 2026787.28-0.17
Sep 29, 2026787.45-0.09

Common questions about Don Pedro Reservoir’s water level

  • The current water level at Don Pedro Reservoir is 786.23 ft (updated 2 hours ago). You can track the Don Pedro Reservoir lake level on the interactive chart and daily history above.

  • Full pool for Don Pedro Reservoir is 830 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Don Pedro Reservoir lake level is falling — falling about 1.15 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Don Pedro Reservoir is currently 43.77 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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