Columbia Basin Performance Measures

Forecasted Juvenile Passage Exposure Results for Jul 21, 2020

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Forecasted Steelhead Snake R Wild Query Parameters
Year2020
ProjectThe Dalles
River ParameterTDG Percent
Critical TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Forecast DateJul 21, 2020
Total Run Period (Feb 24 - Aug 8)
TDG Percent Exposure Index120.84 %
Percent of Fish Exposed87.1 %
Number of Days Fish Exposed39
Middle 80% of Run Period (May 14 - Jun 10)
TDG Percent Exposure Index121.07 %
Percent of Fish Exposed96.4 %
Number of Days Fish Exposed27
Middle 50% of Run Period (May 20 - Jun 5)
TDG Percent Exposure Index121.16 %
Percent of Fish Exposed94.4 %
Number of Days Fish Exposed16
Run Dates
First Day of RunFeb 24
5% of Run passedMay 10
10% of Run passedMay 14
50% of Run passedMay 29
90% of Run passedJun 10
95% of Run passedJun 13
Last Day of RunAug 8
Date(s) When TDG Percent Crosses 120 %
May 4, May 6, May 9, May 10, May 12, May 21, May 22, Jun 13, Jun 15, Jun 16, Jun 29, Jun 30, Jul 1, Jul 4

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.