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
ProjectJohn Day
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 Index120.67 %
Percent of Fish Exposed74.8 %
Number of Days Fish Exposed35
Middle 80% of Run Period (May 13 - Jun 9)
TDG Percent Exposure Index120.93 %
Percent of Fish Exposed84.2 %
Number of Days Fish Exposed23
Middle 50% of Run Period (May 19 - Jun 4)
TDG Percent Exposure Index121.15 %
Percent of Fish Exposed83.7 %
Number of Days Fish Exposed14
Run Dates
First Day of RunFeb 24
5% of Run passedMay 9
10% of Run passedMay 13
50% of Run passedMay 28
90% of Run passedJun 9
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 16, May 17, May 20, May 22, May 28, May 29, Jun 9, Jun 11, Jun 13, Jun 28, Jul 4

1. Total Run Analyzed [99.941] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.