Columbia Basin Performance Measures

Forecasted Juvenile Passage Exposure Results for May 17, 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 17, 2024
Total Run Period (Mar 21 - Jul 31)
TDG Percent Exposure Index121.86 %
Percent of Fish Exposed87.9 %
Number of Days Fish Exposed45
Middle 80% of Run Period (Apr 15 - May 6)
TDG Percent Exposure Index122.63 %
Percent of Fish Exposed100 %
Number of Days Fish Exposed22
Middle 50% of Run Period (Apr 23 - May 3)
TDG Percent Exposure Index122.63 %
Percent of Fish Exposed100 %
Number of Days Fish Exposed11
Run Dates
First Day of RunMar 21
5% of Run passedApr 12
10% of Run passedApr 15
50% of Run passedApr 30
90% of Run passedMay 6
95% of Run passedMay 18
Last Day of RunJul 31
Date(s) When TDG Percent Crosses 120 %
Apr 6, Apr 7, Apr 14, May 17, May 26, 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.