FERC Project No. 2079 - PCWA Middle Fork American River Project ...

Application for New License Middle Fork American River Project (FERC Project No. 2079)
BA/BE Table 32. Number of Days, Years and Average Number of Days May Pulse Flows Occur by Water Year Type under the Proposed Action and No-Action Alternative.
Site / Release Location
Small Streams
Duncan Creek 149
North Fork Long Canyon 29
South Fork Long Canyon
Middle Fork American River
Middle Fork American River
below French Meadows
Middle Fork American River
below Middle Fork Interbay
Rubicon River below Hell Hole Dam
Rubicon River below Hell
Hole Dam
Pulse Flow
Threshold (cfs)
40
343
450
200
1 Total number of pulse flow days / number of years in water year type.
WYT
2 Number of pulse flow events / number of years that pulse flows occurred in water year type.
3 Number of years pulse flows occurred / number of years in water year type.
Total Number of
Days
Average Number
of Days 1
Proposed Action No Action
Average Number
of Days in Event
Years 2
Number of Years 3
Total Number of
Days
Average Number
of Days 1
Average Number
of Days in Event
Years 2
Number of Years 3
Wet 54 5 8 7 / 10 29 3 6 5 / 10
Abv Normal 24 4 5 5 / 6 12 2 6 2 / 6
Blw Normal 0 0 0 0 / 6 0 0 0 0 / 6
Dry 0 0 0 0 / 5 0 0 0 0 / 5
Critical 0 0 0 0 / 6 0 0 0 0 / 6
Total 78 --- --- 12/33 41 --- --- 7/33
Wet 57 6 11 6 / 10 89 9 18 5 / 10
Abv Normal 25 4 4 6 / 6 0 0 0 0 / 6
Blw Normal 0 0 0 0 / 6 0 0 0 0 / 6
Dry 0 0 0 0 / 5 0 0 0 0 / 5
Critical 0 0 0 0 / 6 0 0 0 0 / 6
Total 82 --- --- 12/33 89 --- --- 5/33
Wet 74 7 9 8 / 10 107 11 21 5 / 10
Abv Normal 30 5 5 6 / 6 0 0 0 0 / 6
Blw Normal 0 0 0 0 / 6 0 0 0 0 / 6
Dry 0 0 0 0 / 5 0 0 0 0 / 5
Critical 0 0 0 0 / 6 0 0 0 0 / 6
Total 104 --- --- 12/33 107 --- --- 5/33
Wet 90 9 9 10 / 10 47 5 9 5 / 10
Abv Normal 24 4 4 6 / 6 22 4 11 2 / 6
Blw Normal 3 1 2 2 / 6 0 0 0 0 / 6
Dry 0 0 0 0 / 5 0 0 0 0 / 5
Critical 0 0 0 0 / 6 0 0 0 0 / 6
Total 117 --- --- 18/33 69 --- --- 7/33
Wet 146 15 14 10 / 10 81 8 14 6 / 10
Abv Normal 28 5 5 6 / 6 7 1 7 1 / 6
Blw Normal 1 0 1 1 / 6 0 0 0 0 / 6
Dry 0 0 0 0 / 5 0 0 0 0 / 5
Critical 0 0 0 0 / 6 0 0 0 0 / 6
Total 175 --- --- 17/33 88 --- --- 7/33
Wet 65 31 22 10 / 10 59 6 20 3 / 10
Abv Normal 6 19 6 6 / 6 6 2 6 1 / 6
Blw Normal 0 0 0 0 / 6 0 0 0 0 / 6
Dry 0 0 0 0 / 5 0 0 0 0 / 5
Critical 0 0 0 0 / 6 0 0 0 0 / 6
Total 71 --- --- 16/33 65 --- --- 7/33
February 2011 101