Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2016
ProjectThe Dalles
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value115 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 1 - Oct 31)
Total Number of Fish Observed145027
Percent of Total Run Analyzed [Number Observed]100 % [145027]
Tailrace TDG Percent Exposure Index104.32 %
Percent of Fish Exposed [Number Exposed]2.3 % [3367]
Number of Days Fish Exposed51
Middle 80% of Run Period (Jul 20 - Oct 5)
Number of Fish Observed116718
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [116718]
Tailrace TDG Percent Exposure Index103.67 %
Percent of Fish Exposed [Number Exposed]1.8 % [2120]
Number of Days Fish Exposed3
Middle 50% of Run Period (Sep 2 - Sep 25)
Number of Fish Observed74287
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [74287]
Tailrace TDG Percent Exposure Index101.53 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedJul 8
10% of Run passedJul 20
50% of Run passedSep 14
90% of Run passedOct 5
95% of Run passedOct 10
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 115 %
Apr 12, Apr 25, Apr 26, May 19, May 20, May 22, May 31, Jun 11, Jun 13, Jun 14, Jun 20, Jun 21, Jun 22, Jun 23, Jun 26, Jun 28, Jul 21, Jul 22, Jul 29, Jul 30, Aug 20, Aug 21