Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2024
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 2 - May 17)
Total Number of Fish Observed26307
Percent of Total Run Analyzed [Number Observed]100 % [26307]
Tailrace TDG Percent Exposure Index120.29 %
Percent of Fish Exposed [Number Exposed]59 % [15543]
Number of Days Fish Exposed11
Middle 80% of Run Period (May 6 - May 17)
Number of Fish Observed24008
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [24008]
Tailrace TDG Percent Exposure Index120.39 %
Percent of Fish Exposed [Number Exposed]62.8 % [15089]
Number of Days Fish Exposed5
Middle 50% of Run Period (May 11 - May 16)
Number of Fish Observed16682
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [16682]
Tailrace TDG Percent Exposure Index120.61 %
Percent of Fish Exposed [Number Exposed]70.3 % [11733]
Number of Days Fish Exposed4
Run Dates
First Day of RunApr 2
5% of Run passedMay 3
10% of Run passedMay 6
50% of Run passedMay 13
90% of Run passedMay 17
95% of Run passedMay 17
Last Day of RunMay 17
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 16, Apr 18, Apr 27, May 1, May 13