Good Afternoon,

 

Below are planned releases from HHWP facilities the week of April 18

 

We strive to keep the user community updated on projected flows on the Tuolumne River, flows are expected to vary significantly over the coming weeks.

 

Cherry Reservoir

• Valve releases at approximately 5 cfs
• Holm Powerhouse will cycle between 50-900 cfs
• Flows above 500 cfs 5 PM to 1 AM
• 40-150 cfs 1 AM to 5 PM
• Holm Powerhouse is scheduled for a maintenance outage on April 17-18
• Generation will resume at 23:00 on April 18

 

Lake Eleanor

• Valve releases at approximately 20 cfs
• Full and spilling, spill rates of 200-300 cfs are expected this week

 

Hetch Hetchy Reservoir

• Valve releases from O’Shaughnessy at approximately 120 cfs
• DSOD mandated valve exercise 4/19 – flows will range from 300 to 1200 cfs
• 4/20 releases will be ramped back down to ~120 cfs
• Kirkwood Powerhouse spill ~600 cfs 7 PM to 7 AM starting 4/20
• Limited spill 4/19

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