Hetch Hetchy Water and Power reported May 12, 2016 as follows:

 

The peak release from Hetch Hetchy has now passed and flows began to ramp down this afternoon. The warm clear weather has triggered an onset of flows in the high country. We have a slight cooling pattern ahead of us for the weekend, but warmer weather looks like it may try to return the middle of next week. We still have not seen the first “hot spell” of the spring. Below is a table of estimated releases from HHWP facilities. There are of course other accretions to add to these flows to estimate the flow at Lumsden. Be aware that Lake Eleanor is now spilling, so the weather will affect flows from Eleanor.

 

Also, please be aware that on 5/17, 5/18 and 5/19 we are performing valve maintenance at Hetch Hetchy. This will cause a variation flow throughout the day, however it is captured by the range listed below.

 

Enjoy the higher flows this weekend and be safe.

 

 

Hetchy Release

Holm Draft

Eleanor

Total Release

All flows in cfs

High

Low

Kirkwood

High

Low

Cherry Release

High

Low

High

Low

5/13/2016

4750

3565

750

450

750

5

500

400

    6,455

    5,470

5/14/2016

3565

2675

750

325

650

5

500

400

    5,145

    4,480

5/15/2016

2675

2005

750

325

650

5

500

300

    4,255

    3,710

5/16/2016

2005

1700

750

350

750

5

500

300

    3,610

    3,505

5/17/2016

2700

1700

750

350

750

5

500

300

   4,305

    3,505

5/18/2016

2700

1700

750

350

750

5

500

400

   4,305

    3,605

5/19/2016

2700

1700

750

350

750

5

600

500

   4,405

    3,705

5/20/2016

1700

1000

750

350

750

5

600

500

   3,405

   3,005

5/21/2016

1700

1000

750

325

650

5

600

500

   3,380

    2,905

5/22/2016

1700

1000

750

325

650

5

600

500

   3,380

    2,905

5/23/2016

1700

1000

750

350

750

5

600

500

   3,405

   3,005

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