Good afternoon,

 

Below are planned releases from HHWP facilities through March 31^th.

 

For permitting and access information contact the Groveland Ranger District.

 

We strive to keep the user community updated on projected flows on the Tuolumne River. Flows will continue to vary significantly over the coming weeks as spring runoff season begins

 

Stated flow rates are best estimates and are subject to change as conditions and operational constraints evolve.

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Meral’s Pool

• Total flows at Meral’s Pool 2,000 – 3,000 cfs
• South Fork flows are rough estimate (300-800 cfs)

 

Calculated real time flow station for Meral’s Pool:

https://cdec.water.ca.gov/dynamicapp/QueryF?s=TMP

https://cdec.water.ca.gov/webgis/?appid=cdecstation&sta=TMP

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Hetch Hetchy Reservoir

• Total flows immediately below Hetch Hetchy 120 cfs
• Additional releases may be possible pending inflows and operational conditions; notifications to be provided as needed
• Kirkwood Powerhouse

• Spill of approximately 500-600 cfs around the clock

 

Cherry Reservoir

• Total flows below Cherry 7 cfs
• Additional releases may be possible pending inflows and operational conditions; notifications to be provided as needed

• Holm Powerhouse
• Approximate spill is 540-900 cfs around the clock
• Cut in releases may be possible pending operational constraints; notifications to be provided as needed
• Holm 1 unit operation 3/18-3/25; spill 0-550 cfs possible

 

Lake Eleanor

• Valve releases of 10+ cfs
• Spill approximately 100-700 cfs
• Total flow below Eleanor approximately 110-750 cfs