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 22)
Total Number of Fish Observed47719
Percent of Total Run Analyzed [Number Observed]100 % [47719]
Tailrace TDG Percent Exposure Index99.65 %
Percent of Fish Exposed [Number Exposed]0 % [32]
Number of Days Fish Exposed12
Middle 80% of Run Period (Sep 3 - Oct 14)
Number of Fish Observed38384
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [38384]
Tailrace TDG Percent Exposure Index98.25 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 15 - Oct 6)
Number of Fish Observed24845
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [24845]
Tailrace TDG Percent Exposure Index98.1 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedJul 20
10% of Run passedSep 3
50% of Run passedSep 26
90% of Run passedOct 14
95% of Run passedOct 18
Last Day of RunOct 22
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