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 Granite
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 1)
TDG Percent Exposure Index119.59 %
Percent of Fish Exposed51.4 %
Number of Days Fish Exposed51
Middle 80% of Run Period (Apr 15 - May 13)
TDG Percent Exposure Index118.97 %
Percent of Fish Exposed50.4 %
Number of Days Fish Exposed18
Middle 50% of Run Period (Apr 20 - May 6)
TDG Percent Exposure Index115.09 %
Percent of Fish Exposed21.2 %
Number of Days Fish Exposed6
Run Dates
First Day of RunMar 21
5% of Run passedApr 12
10% of Run passedApr 15
50% of Run passedApr 27
90% of Run passedMay 13
95% of Run passedMay 19
Last Day of RunAug 1
Date(s) When TDG Percent Crosses 120 %
Apr 6, Apr 7, Apr 14, Apr 24, May 5, Jun 7, Jun 9, Jun 16

1. Total Run Analyzed [99.991] is less than total observed during the period [100]. Only fish observed on days with River Parameter data are analyzed.