Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2024
ProjectLower Granite
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 9 - Jun 15)
Total Number of Fish Observed44748
Percent of Total Run Analyzed [Number Observed]100 % [44748]
Tailrace TDG Percent Exposure Index123.34 %
Percent of Fish Exposed [Number Exposed]94.5 % [42304]
Number of Days Fish Exposed58
Middle 80% of Run Period (May 13 - Jun 7)
Number of Fish Observed36407
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [36407]
Tailrace TDG Percent Exposure Index123.64 %
Percent of Fish Exposed [Number Exposed]95.3 % [34721]
Number of Days Fish Exposed23
Middle 50% of Run Period (May 16 - May 26)
Number of Fish Observed22956
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [22956]
Tailrace TDG Percent Exposure Index123.62 %
Percent of Fish Exposed [Number Exposed]100 % [22956]
Number of Days Fish Exposed11
Run Dates
First Day of RunApr 9
5% of Run passedMay 9
10% of Run passedMay 13
50% of Run passedMay 19
90% of Run passedJun 7
95% of Run passedJun 11
Last Day of RunJun 15
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 14, May 5, May 6, May 27, May 30, Jun 15