Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

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 - Jul 1)
Total Number of Fish Observed664
Percent of Total Run Analyzed [Number Observed]100 % [664]
Tailrace TDG Percent Exposure Index116.75 %
Percent of Fish Exposed [Number Exposed]14.7 % [98]
Number of Days Fish Exposed21
Middle 80% of Run Period (Apr 5 - Jun 29)
Number of Fish Observed542
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [542]
Tailrace TDG Percent Exposure Index117.8 %
Percent of Fish Exposed [Number Exposed]18 % [98]
Number of Days Fish Exposed21
Middle 50% of Run Period (Apr 13 - Jun 25)
Number of Fish Observed356
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [356]
Tailrace TDG Percent Exposure Index118.82 %
Percent of Fish Exposed [Number Exposed]27.5 % [98]
Number of Days Fish Exposed21
Run Dates
First Day of RunApr 1
5% of Run passedApr 3
10% of Run passedApr 5
50% of Run passedApr 27
90% of Run passedJun 29
95% of Run passedJul 1
Last Day of RunJul 1
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 13, Apr 17, May 13, May 21, May 24, May 25, May 30, May 31, Jun 1, Jun 14