Good morning,

 

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.

 

Hetch Hetchy Reservoir

• Total flows immediately below Hetch Hetchy 120 cfs; starting April 1 flows will increase to 140 cfs
• Additional releases may be possible pending inflows and operational conditions; notifications to be provided as needed
• Kirkwood Powerhouse

• Spill of approximately:
• 0000-0700: 500-600 cfs
• 0700-0900: 250-350 cfs
• 0900-1700: 0 cfs
• 1700-0000: 500-600 cfs

 

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. One-unit operations scheduled to end tomorrow (3/26). Max spill on one unit is 450-550 cfs.
• Approximate daily spill cycle:
• 0000-0600: 700-900 cfs
• 0600-0900: 650-750 cfs
• 0900-1700: 50-60 cfs
• 1700-0000: 700-900 cfs

 

Lake Eleanor

• Valve releases of 10+ cfs
• Spill approximately 0-700 cfs
• Total flow below Eleanor approximately 10-700 cfs

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Meral’s Pool

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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Any significant changes to the schedule will be posted on the bulletin board.