Columbia Basin Performance Measures

Forecasted Adult Passage Exposure Results for May 1, 2024

graph

All Adult Chinook mouth to Snake River Query Parameters
Year2024
ProjectJohn Day
River ParameterTDG Percent
Critical TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Forecast DateMay 1, 2024
Total Run Period (Mar 18 - Jun 19)
TDG Percent Exposure Index118.62 %
Percent of Fish Exposed42.8 %
Number of Days Fish Exposed37
Middle 80% of Run Period (Apr 26 - Jun 10)
TDG Percent Exposure Index118.59 %
Percent of Fish Exposed41.6 %
Number of Days Fish Exposed28
Middle 50% of Run Period (May 1 - May 25)
TDG Percent Exposure Index118.42 %
Percent of Fish Exposed40.1 %
Number of Days Fish Exposed14
Run Dates
First Day of RunMar 18
5% of Run passedApr 23
10% of Run passedApr 26
50% of Run passedMay 9
90% of Run passedJun 10
95% of Run passedJun 14
Last Day of RunJun 19
Date(s) When TDG Percent Crosses 120 %
May 12, Jun 7, Jun 9

1. Total Run Analyzed [99.952] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.