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	Ice Harbor
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 22)
TDG Percent Exposure Index	121.06 %
Percent of Fish Exposed	74.4 %
Number of Days Fish Exposed	49

Middle 80% of Run Period (May 6 - Jun 8)
TDG Percent Exposure Index	121.11 %
Percent of Fish Exposed	77.6 %
Number of Days Fish Exposed	25

Middle 50% of Run Period (May 15 - May 31)
TDG Percent Exposure Index	121.5 %
Percent of Fish Exposed	84.3 %
Number of Days Fish Exposed	14

Run Dates
First Day of Run	Mar 21
5% of Run passed	May 1
10% of Run passed	May 6
50% of Run passed	May 23
90% of Run passed	Jun 8
95% of Run passed	Jun 12
Last Day of Run	Jul 22

Date(s) When TDG Percent Crosses 120 %
Apr 16
Apr 26
May 8
May 11
May 14
May 29
Jun 1
Jun 3
Jun 4
Jun 23

1. Total Run Analyzed [99.943] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.