Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2022
ProjectLower Monumental
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates3/15 - 6/15
Total Run Period (Apr 3 - Jun 15)
Total Number of Fish Observed57577
Percent of Total Run Analyzed [Number Observed]100 % [57577]
Tailrace TDG Percent Exposure Index120.64 %
Percent of Fish Exposed [Number Exposed]53.1 % [30610]
Number of Days Fish Exposed34
Middle 80% of Run Period (May 7 - Jun 3)
Number of Fish Observed47158
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [47158]
Tailrace TDG Percent Exposure Index120.23 %
Percent of Fish Exposed [Number Exposed]43.6 % [20565]
Number of Days Fish Exposed13
Middle 50% of Run Period (May 9 - May 25)
Number of Fish Observed32372
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [32372]
Tailrace TDG Percent Exposure Index119.42 %
Percent of Fish Exposed [Number Exposed]25.1 % [8152]
Number of Days Fish Exposed4
Run Dates
First Day of RunApr 3
5% of Run passedMay 5
10% of Run passedMay 7
50% of Run passedMay 17
90% of Run passedJun 3
95% of Run passedJun 9
Last Day of RunJun 15
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 27, Apr 28, Apr 29, May 12, May 19, May 20, May 28