Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2022
ProjectThe Dalles
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 30)
Total Number of Fish Observed103534
Percent of Total Run Analyzed [Number Observed]100 % [103534]
Tailrace TDG Percent Exposure Index106.4 %
Percent of Fish Exposed [Number Exposed]1.7 % [1823]
Number of Days Fish Exposed45
Middle 80% of Run Period (Jul 13 - Oct 9)
Number of Fish Observed83722
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [83722]
Tailrace TDG Percent Exposure Index105.71 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Aug 4 - Sep 26)
Number of Fish Observed53595
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [53595]
Tailrace TDG Percent Exposure Index103.54 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 1
5% of Run passedJul 7
10% of Run passedJul 13
50% of Run passedSep 12
90% of Run passedOct 9
95% of Run passedOct 18
Last Day of RunDec 30
Date(s) When Tailrace TDG Percent Crosses 120 %
May 12, May 13, May 14, May 16, May 18, May 19, May 20, Jul 1