Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2024
ProjectMcNary
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates3/15 - 6/15
Total Run Period (Apr 1 - Jun 15)
Total Number of Fish Observed69969
Percent of Total Run Analyzed [Number Observed]100 % [69969]
Tailrace TDG Percent Exposure Index119.08 %
Percent of Fish Exposed [Number Exposed]44.1 % [30870]
Number of Days Fish Exposed25
Middle 80% of Run Period (May 3 - Jun 8)
Number of Fish Observed56744
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [56744]
Tailrace TDG Percent Exposure Index119.15 %
Percent of Fish Exposed [Number Exposed]44.8 % [25436]
Number of Days Fish Exposed19
Middle 50% of Run Period (May 8 - May 22)
Number of Fish Observed38200
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [38200]
Tailrace TDG Percent Exposure Index119.37 %
Percent of Fish Exposed [Number Exposed]50.8 % [19438]
Number of Days Fish Exposed9
Run Dates
First Day of RunApr 1
5% of Run passedApr 29
10% of Run passedMay 3
50% of Run passedMay 14
90% of Run passedJun 8
95% of Run passedJun 13
Last Day of RunJun 15
Date(s) When Tailrace TDG Percent Crosses 120 %
May 14, May 25, May 30, Jun 2, Jun 4, Jun 15