Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2018
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 (Jan 1 - Aug 13)
Total Number of Fish Observed14056
Percent of Total Run Analyzed [Number Observed]100 % [14056]
Tailrace TDG Percent Exposure Index113.56 %
Percent of Fish Exposed [Number Exposed]0.2 % [40]
Number of Days Fish Exposed16
Middle 80% of Run Period (Jun 29 - Aug 5)
Number of Fish Observed11453
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [11453]
Tailrace TDG Percent Exposure Index113.5 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Jul 8 - Jul 28)
Number of Fish Observed7703
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [7703]
Tailrace TDG Percent Exposure Index113.66 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunJan 1
5% of Run passedJun 22
10% of Run passedJun 29
50% of Run passedJul 18
90% of Run passedAug 5
95% of Run passedAug 9
Last Day of RunAug 13
Date(s) When Tailrace TDG Percent Crosses 120 %
May 2, May 3, May 5, May 26, May 27, May 28, May 30, May 31, Jun 2, Jun 3