Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2024
ProjectBonneville
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 (Mar 17 - May 17)
Total Number of Fish Observed78522
Percent of Total Run Analyzed [Number Observed]99.93 % [78470]1
Tailrace TDG Percent Exposure Index118.2 %
Percent of Fish Exposed [Number Exposed]5.2 % [4114]
Number of Days Fish Exposed3
Middle 80% of Run Period (Apr 24 - May 13)
Number of Fish Observed64601
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [64601]
Tailrace TDG Percent Exposure Index117.95 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 30 - May 10)
Number of Fish Observed42146
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [42146]
Tailrace TDG Percent Exposure Index117.59 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 17
5% of Run passedApr 21
10% of Run passedApr 24
50% of Run passedMay 5
90% of Run passedMay 13
95% of Run passedMay 15
Last Day of RunMay 17
Date(s) When Tailrace TDG Percent Crosses 120 %
May 15

1. Total Run Analyzed [78470] is less than total observed during the period [78522]. Only fish observed on days with River Parameter data are analyzed.