2010 Water Supply Summary Liz Cresto. 2010 Water Suppy Impacts to Water Management –Power...

2010 Water Supply Summary

Liz Cresto

2010 Water Suppy

Impacts to Water Management– Power Generation– Payette River Flooding– Boise River Irrigation – Snake River Delivery Calls and Recharge– Bear River Irrigation

Source: Bonneville Power Administration “Balancing an Over-Supply Generation” ppt October 12, 2010 public meeting

Payette

Current Data Graph

Boise River

Rare Precipitation Events in June and August

Return to Climate Charts Web page.

Snake

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Surface Water Coalition In-Season Shortfall

Order Date Predicted In-Season Shortfall

April 29th 84,300 AF

May 17th 68,400 AF

June 24th 56,000 AF

August 10th (Interlocatory) 0 AF

September 17th (Final In-Season Shortfall) 0 AF

2010 Early Season ESPA RechargeSummary February 24 through June 25

Canal cumulative start/end % of total

  volume  

  a-f    

Aberdeen-Springfield 5,322 4-12 / 6-21 9

AFRD2 2,002 4-12 / 6-23 3

Fremont-Madison 49,466 2-24 / 6-20 84

Southwest 1,293 3-15 / 4-13 2

Snake River Valley 1,125 4-10 / 4-15 2

TOTAL   59,208    

above American Falls 55,913 a-f 94% of total

below American Falls 3,295 a-f 6% of total

24-Feb 3-Mar 10-Mar 17-Mar 24-Mar 31-Mar 7-Apr 14-Apr 21-Apr 28-Apr 5-May 12-May19-May26-May 2-Jun 9-Jun 16-Jun 23-Jun 30-Jun0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

2010 Cumulative Recharge VolumeEarly Season, February 24 - June 25

total above American Falls

total below American Falls

total acre-feet

Date

Acr

e-F

eet

Early Season RechargeFeb 24 - Apr 15

55,815 a-f

Early Season RechargeJun 5 - 253,393 a-f

Total Early Season Recharge59,208 a-f

Bear River

• Cool Wet Spring• Delay in Irrigation Demand• Water rights period of use ends 9/30.

Questions?