Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
ProjectMcNary
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 Observed1732
Percent of Total Run Analyzed [Number Observed]100 % [1732]
Tailrace TDG Percent Exposure Index116.4 %
Percent of Fish Exposed [Number Exposed]3.6 % [63]
Number of Days Fish Exposed19
Middle 80% of Run Period (May 17 - Jul 1)
Number of Fish Observed1559
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [1559]
Tailrace TDG Percent Exposure Index116.62 %
Percent of Fish Exposed [Number Exposed]4 % [63]
Number of Days Fish Exposed19
Middle 50% of Run Period (Jun 21 - Jun 29)
Number of Fish Observed1001
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [1001]
Tailrace TDG Percent Exposure Index116.39 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedApr 12
10% of Run passedMay 17
50% of Run passedJun 26
90% of Run passedJul 1
95% of Run passedJul 1
Last Day of RunJul 1
Date(s) When Tailrace TDG Percent Crosses 120 %
May 14, May 25, May 30, Jun 2, Jun 4, Jun 15