Columbia Basin Performance Measures

Forecasted Juvenile Passage Exposure Results for May 1, 2024

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Forecasted Steelhead Snake R Wild Query Parameters
Year2024
ProjectLower Monumental
River ParameterTDG Percent
Critical TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Forecast DateMay 1, 2024
Total Run Period (Mar 21 - Aug 14)
TDG Percent Exposure Index121.81 %
Percent of Fish Exposed74.8 %
Number of Days Fish Exposed61
Middle 80% of Run Period (Apr 25 - May 25)
TDG Percent Exposure Index121.55 %
Percent of Fish Exposed69.9 %
Number of Days Fish Exposed21
Middle 50% of Run Period (May 2 - May 17)
TDG Percent Exposure Index122.31 %
Percent of Fish Exposed81.5 %
Number of Days Fish Exposed13
Run Dates
First Day of RunMar 21
5% of Run passedApr 21
10% of Run passedApr 25
50% of Run passedMay 9
90% of Run passedMay 25
95% of Run passedMay 30
Last Day of RunAug 14
Date(s) When TDG Percent Crosses 120 %
Apr 6, Apr 7, Apr 14, Apr 25, May 5, Jun 23

1. Total Run Analyzed [99.927] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.