Columbia Basin Performance Measures

Adult Passage Exposure Results

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Adult Steelhead Query Parameters
Year2024
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 - May 17)
Total Number of Fish Observed428
Percent of Total Run Analyzed [Number Observed]100 % [428]
Tailrace TDG Percent Exposure Index118.53 %
Percent of Fish Exposed [Number Exposed]18.9 % [81]
Number of Days Fish Exposed10
Middle 80% of Run Period (Apr 3 - May 6)
Number of Fish Observed360
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [360]
Tailrace TDG Percent Exposure Index119.18 %
Percent of Fish Exposed [Number Exposed]18 % [65]
Number of Days Fish Exposed4
Middle 50% of Run Period (Apr 9 - Apr 26)
Number of Fish Observed226
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [226]
Tailrace TDG Percent Exposure Index119.85 %
Percent of Fish Exposed [Number Exposed]28.7 % [65]
Number of Days Fish Exposed4
Run Dates
First Day of RunApr 1
5% of Run passedApr 2
10% of Run passedApr 3
50% of Run passedApr 16
90% of Run passedMay 6
95% of Run passedMay 10
Last Day of RunMay 17
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 13, Apr 17, May 12