Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2022
ProjectMcNary
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 1 - Dec 31)
Total Number of Fish Observed87179
Percent of Total Run Analyzed [Number Observed]99.6 % [86832]1
Tailrace TDG Percent Exposure Index104.98 %
Percent of Fish Exposed [Number Exposed]1.8 % [1569]
Number of Days Fish Exposed41
Middle 80% of Run Period (Jul 23 - Oct 19)
Number of Fish Observed69898
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [69898]
Tailrace TDG Percent Exposure Index104.45 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Aug 28 - Oct 4)
Number of Fish Observed44834
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [44834]
Tailrace TDG Percent Exposure Index102.11 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 1
5% of Run passedJul 14
10% of Run passedJul 23
50% of Run passedSep 23
90% of Run passedOct 19
95% of Run passedOct 27
Last Day of RunDec 31
Date(s) When Tailrace TDG Percent Crosses 120 %
May 20, Jul 5, Jul 12, Jul 15

1. Total Run Analyzed [86832] is less than total observed during the period [87179]. Only fish observed on days with River Parameter data are analyzed.