Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2017
ProjectBonneville
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value115 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates3/15 - 6/15
Total Run Period (Mar 15 - Jun 15)
Total Number of Fish Observed107516
Percent of Total Run Analyzed [Number Observed]89.77 % [96520]1
Tailrace TDG Percent Exposure Index124.24 %
Percent of Fish Exposed [Number Exposed]100 % [96520]
Number of Days Fish Exposed73
Middle 80% of Run Period (May 5 - Jun 9)
Number of Fish Observed88684
Percent of Middle 80% of Run Analyzed [Number Observed]87.6 % [77688]
Tailrace TDG Percent Exposure Index124.42 %
Percent of Fish Exposed [Number Exposed]100 % [77688]
Number of Days Fish Exposed29
Middle 50% of Run Period (May 11 - May 30)
Number of Fish Observed56108
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [56108]
Tailrace TDG Percent Exposure Index124.41 %
Percent of Fish Exposed [Number Exposed]100 % [56108]
Number of Days Fish Exposed20
Run Dates
First Day of RunMar 15
5% of Run passedMay 4
10% of Run passedMay 5
50% of Run passedMay 22
90% of Run passedJun 9
95% of Run passedJun 12
Last Day of RunJun 15

1. Total Run Analyzed [96520] is less than total observed during the period [107516]. Only fish observed on days with River Parameter data are analyzed.