Columbia Basin Performance Measures

Forecasted Juvenile Passage Exposure Results for Aug 12, 2025

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Forecasted Yearling Chinook Snake R All Spr/Sum Wild Query Parameters
Year2025
ProjectJohn Day
River ParameterTDG Percent
Critical TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Forecast DateAug 12, 2025
Total Run Period ( - )
TDG Percent Exposure Index118.38 %
Percent of Fish Exposed4.7 %
Number of Days Fish Exposed6
Middle 80% of Run Period ( - )
TDG Percent Exposure Index118.49 %
Percent of Fish Exposed5.6 %
Number of Days Fish Exposed1
Middle 50% of Run Period ( - )
TDG Percent Exposure Index118.56 %
Percent of Fish Exposed8.3 %
Number of Days Fish Exposed1
Run Dates
First Day of Run
5% of Run passed
10% of Run passed
50% of Run passed
90% of Run passed
95% of Run passed
Last Day of Run
Date(s) When TDG Percent Crosses 120 %
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.