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 - Oct 22)
Total Number of Fish Observed79445
Percent of Total Run Analyzed [Number Observed]100 % [79445]
Tailrace TDG Percent Exposure Index104.28 %
Percent of Fish Exposed [Number Exposed]0.8 % [701]
Number of Days Fish Exposed17
Middle 80% of Run Period (Jul 20 - Oct 6)
Number of Fish Observed63961
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [63961]
Tailrace TDG Percent Exposure Index103.69 %
Percent of Fish Exposed [Number Exposed]1 % [661]
Number of Days Fish Exposed1
Middle 50% of Run Period (Aug 30 - Sep 24)
Number of Fish Observed40861
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [40861]
Tailrace TDG Percent Exposure Index102.05 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunJan 1
5% of Run passedJul 10
10% of Run passedJul 20
50% of Run passedSep 13
90% of Run passedOct 6
95% of Run passedOct 10
Last Day of RunOct 22
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, Aug 28, Aug 29