Columbia Basin Performance Measures

Adult Passage Exposure Results

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Adult Steelhead Query Parameters
Year2018
ProjectLittle Goose
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 - Oct 31)
Total Number of Fish Observed45584
Percent of Total Run Analyzed [Number Observed]100 % [45584]
Tailrace TDG Percent Exposure Index98.4 %
Percent of Fish Exposed [Number Exposed]0 % [14]
Number of Days Fish Exposed6
Middle 80% of Run Period (Sep 9 - Oct 19)
Number of Fish Observed37170
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [37170]
Tailrace TDG Percent Exposure Index97.3 %
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 Observed23821
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [23821]
Tailrace TDG Percent Exposure Index97.03 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedJul 27
10% of Run passedSep 9
50% of Run passedSep 29
90% of Run passedOct 19
95% of Run passedOct 23
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 120 %
May 10, May 12, May 19, May 20, May 21, Jun 2