Dreamflows Tuolumne - Holm Powerhouse Release Schedule
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River Flow Below Holm Powerhouse

In the tables that follow, each date is color-coded according to the kind of release scheduled for that day:

Color	Meaning
	No scheduled release planned for this day.
	Scheduled release: 1100 cfs total estimated releases from the HHWP project from 7am to 11am.

Note: All information provided by Hetch Hetchy Water and Power.
Note: Things can change.  See the current Dreamflows Bulletin Board thread as well as links on the flow reports for late-breaking news.
NOTE: The following flows are the minimum scheduled releases that you can expect - actual flows, expecially during May and June, may be much higher.  See the notes at the bottom of this page.

 

August 2011
Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1   1100 cfs  7am - 11am	2   1100 cfs  7am - 11am	3	4   1100 cfs  7am - 11am	5   1100 cfs  7am - 11am	6   1100 cfs  7am - 11am
7   1100 cfs  7am - 11am	8   1100 cfs  7am - 11am	9   1100 cfs  7am - 11am	10   1100 cfs  7am - 11am	11   1100 cfs  7am - 11am	12   1100 cfs  7am - 11am	13   1100 cfs  7am - 11am
14   1100 cfs  7am - 11am	15   1100 cfs  7am - 11am	16   1100 cfs  7am - 11am	17	18   1100 cfs  7am - 11am	19   1100 cfs  7am - 11am	20   1100 cfs  7am - 11am
21   1100 cfs  7am - 11am	22   1100 cfs  7am - 11am	23   1100 cfs  7am - 11am	24   1100 cfs  7am - 11am	25   1100 cfs  7am - 11am	26   1100 cfs  7am - 11am	27   1100 cfs  7am - 11am
28   1100 cfs  7am - 11am	29   1100 cfs  7am - 11am	30   1100 cfs  7am - 11am	31

 

September 2011
Sun	Mon	Tue	Wed	Thu	Fri	Sat
				1   1100 cfs  7am - 11am	2   1100 cfs  7am - 11am	3   1100 cfs  7am - 11am
4   1100 cfs  7am - 11am	5   1100 cfs  7am - 11am	6	7	8	9	10
11	12	13	14	15	16	17
18	19	20	21	22	23	24
25	26	27	28	29	30

Water Management Issues:

2.  Release at Early Intake of 750+ cfs will continue through late June.  Holm will run full through at least mid-June.  Eleanor will spill 300-800 cfs through mid-June.  Hetch Hetchy spill will be significant, will start ramping up around May 15, and will have an 8,500 cfs 2-4 day release by May 18 for 2-5 days.  Flows of ~6,500 cfs will follow the first pulse for 7-14 days.  Additional releases and spill from Hetch Hetchy will continue through the end of June, but timing and magnitude cannot be predicted until mid-June.  Equipment issues can interrupt this plan and the scheduled flows.  Notification will be made as early as possible if equipment issues occur.

3.  Users should be aware that sudden changes in powerhouse or dam releases may occur at any time due to emergency mechanical or electrical conditions.  Scheduled or unplanned rapid changes in water levels and flow rates can create hazards, and users are urged to use caution and to wear all appropriate personal protective equipment.

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