Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2018
ProjectLower Monumental
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 1 - Jun 21)
Total Number of Fish Observed1238
Percent of Total Run Analyzed [Number Observed]100 % [1238]
Tailrace TDG Percent Exposure Index116.76 %
Percent of Fish Exposed [Number Exposed]2.5 % [32]
Number of Days Fish Exposed12
Middle 80% of Run Period (Apr 6 - Apr 30)
Number of Fish Observed1026
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [1026]
Tailrace TDG Percent Exposure Index117.28 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 8 - Apr 20)
Number of Fish Observed718
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [718]
Tailrace TDG Percent Exposure Index117.58 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedApr 4
10% of Run passedApr 6
50% of Run passedApr 12
90% of Run passedApr 30
95% of Run passedMay 13
Last Day of RunJun 21
Date(s) When Tailrace TDG Percent Crosses 120 %
May 7, May 8, May 9, May 12, May 15, May 16, May 17, May 31, Jun 1, Jun 3