School of Aquatic and Fishery Sciences

Columbia Basin Performance Measures

Forecasted Juvenile Passage Exposure Results for Aug 9, 2024

graph

Forecasted Yearling Chinook Snake R All Spr/Sum Wild Query Parameters
Year	2024
Project	Bonneville
River Parameter	TDG Percent
Critical TDG Percent Value	120 %
Calculate Exposure	Above Critical Value
River Parameter Data Fill	No
Query Dates	1/1 - 12/31
Forecast Date	Aug 9, 2024

Total Run Period (Mar 27 - Oct 4)
TDG Percent Exposure Index	119.61 %
Percent of Fish Exposed	29.7 %
Number of Days Fish Exposed	17

Middle 80% of Run Period (May 8 - Jun 7)
TDG Percent Exposure Index	119.84 %
Percent of Fish Exposed	32.9 %
Number of Days Fish Exposed	11

Middle 50% of Run Period (May 13 - May 31)
TDG Percent Exposure Index	119.89 %
Percent of Fish Exposed	29.6 %
Number of Days Fish Exposed	6

Run Dates
First Day of Run	Mar 27
5% of Run passed	May 5
10% of Run passed	May 8
50% of Run passed	May 21
90% of Run passed	Jun 7
95% of Run passed	Jun 14
Last Day of Run	Oct 4

Date(s) When TDG Percent Crosses 120 %
Apr 20
Apr 21
May 10
May 11
May 21
May 23
May 24
May 27
May 28
May 29
Jun 1
Jun 3
Jun 5
Jun 7
Jun 9
Jun 11
Jun 13
Jun 16

1. Total Run Analyzed [99.948] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.