Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
ProjectLower Granite
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 (Mar 1 - Dec 30)
Total Number of Fish Observed104405
Percent of Total Run Analyzed [Number Observed]100 % [104405]
Tailrace TDG Percent Exposure Index101.87 %
Percent of Fish Exposed [Number Exposed]0.2 % [300]
Number of Days Fish Exposed44
Middle 80% of Run Period (Sep 8 - Oct 25)
Number of Fish Observed84545
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [84545]
Tailrace TDG Percent Exposure Index101.31 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 18 - Oct 10)
Number of Fish Observed54105
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [54105]
Tailrace TDG Percent Exposure Index100.92 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 1
5% of Run passedAug 24
10% of Run passedSep 8
50% of Run passedSep 29
90% of Run passedOct 25
95% of Run passedNov 5
Last Day of RunDec 30
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 14, May 5, May 6, May 27, May 30, Jun 15