Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2018
ProjectLower Monumental
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 Observed50031
Percent of Total Run Analyzed [Number Observed]100 % [50031]
Tailrace TDG Percent Exposure Index99.49 %
Percent of Fish Exposed [Number Exposed]0 % [32]
Number of Days Fish Exposed12
Middle 80% of Run Period (Sep 4 - Oct 17)
Number of Fish Observed40298
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [40298]
Tailrace TDG Percent Exposure Index98.03 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 16 - Oct 7)
Number of Fish Observed25284
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [25284]
Tailrace TDG Percent Exposure Index98.02 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedJul 21
10% of Run passedSep 4
50% of Run passedSep 27
90% of Run passedOct 17
95% of Run passedOct 22
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 120 %
May 7, May 8, May 9, May 12, May 15, May 16, May 17, May 31, Jun 1, Jun 3