Idaho Water Supply Committee Meeting Southwest Idaho Report March 8, 2012

73% of Boise System Capacity 69% of Payette System Capacity

Boise River Diversion Dam

Boise Basin Runoff March 1 – July 31 95% of Avg. 93% of Avg.

Anderson Ranch Reservoir Inflows March 1 – July 30 95% of Avg. 72% of Avg. 105% of Avg.

Payette River Runoff at Horseshoe Bend March 1 – July 31 Payette River Runoff at Horseshoe Bend March 1 – July 31 85% of Avg. 90% of Avg. 81% of Avg.

Deadwood Reservoir Inflows March 1 – July 31 83% of Avg. 89% of Avg.

Cascade Reservoir Inflows March 1 – July 31 87% of Avg. 93% of Avg.

59% of normal 41% of normal 65% of normal

Owyhee Basin Runoff March 1 – June 30 41% of Avg. 44% of Avg.

kaf 1987 – 140 kaf

2007 = 138 kaf 2001 = 244 kaf

kaf