Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2021
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 (Apr 1 - Oct 31)
Total Number of Fish Observed50897
Percent of Total Run Analyzed [Number Observed]100 % [50897]
Tailrace TDG Percent Exposure Index102.22 %
Percent of Fish Exposed [Number Exposed]0 % [3]
Number of Days Fish Exposed2
Middle 80% of Run Period (Aug 29 - Oct 13)
Number of Fish Observed41242
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [41242]
Tailrace TDG Percent Exposure Index101.13 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 7 - Sep 30)
Number of Fish Observed26072
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [26072]
Tailrace TDG Percent Exposure Index100.44 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedJul 27
10% of Run passedAug 29
50% of Run passedSep 20
90% of Run passedOct 13
95% of Run passedOct 20
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 120 %
Jun 4, Jun 5, Jun 9, Jun 12