Columbia Basin Performance Measures

Forecasted Adult Passage Exposure Results for May 1, 2024

graph

All Adult Chinook mouth to Snake River Query Parameters
Year2024
ProjectThe Dalles
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 17 - Jun 17)
TDG Percent Exposure Index118.35 %
Percent of Fish Exposed27.4 %
Number of Days Fish Exposed27
Middle 80% of Run Period (Apr 25 - Jun 9)
TDG Percent Exposure Index118.25 %
Percent of Fish Exposed24.1 %
Number of Days Fish Exposed20
Middle 50% of Run Period (Apr 30 - May 24)
TDG Percent Exposure Index118.08 %
Percent of Fish Exposed12.4 %
Number of Days Fish Exposed6
Run Dates
First Day of RunMar 17
5% of Run passedApr 22
10% of Run passedApr 25
50% of Run passedMay 8
90% of Run passedJun 9
95% of Run passedJun 13
Last Day of RunJun 17
Date(s) When TDG Percent Crosses 120 %
May 19, Jun 7, Jun 9, Jun 12, Jun 13

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.