School of Aquatic and Fishery Sciences

Columbia Basin Performance Measures

Forecasted Juvenile Passage Exposure Results for Jul 23, 2024

graph

Forecasted Steelhead Snake R 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	Jul 23, 2024

Total Run Period (Mar 21 - Jul 27)
TDG Percent Exposure Index	119.75 %
Percent of Fish Exposed	40.9 %
Number of Days Fish Exposed	17

Middle 80% of Run Period (May 16 - Jun 14)
TDG Percent Exposure Index	120.07 %
Percent of Fish Exposed	48 %
Number of Days Fish Exposed	14

Middle 50% of Run Period (May 23 - Jun 8)
TDG Percent Exposure Index	120.09 %
Percent of Fish Exposed	46.6 %
Number of Days Fish Exposed	8

Run Dates
First Day of Run	Mar 21
5% of Run passed	May 11
10% of Run passed	May 16
50% of Run passed	Jun 1
90% of Run passed	Jun 14
95% of Run passed	Jun 19
Last Day of Run	Jul 27

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 [99.956] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.