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 - May 17)
Total Number of Fish Observed16890
Percent of Total Run Analyzed [Number Observed]100 % [16890]
Tailrace TDG Percent Exposure Index123.86 %
Percent of Fish Exposed [Number Exposed]98.4 % [16635]
Number of Days Fish Exposed33
Middle 80% of Run Period (May 8 - May 17)
Number of Fish Observed15353
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [15353]
Tailrace TDG Percent Exposure Index124.2 %
Percent of Fish Exposed [Number Exposed]100 % [15353]
Number of Days Fish Exposed10
Middle 50% of Run Period (May 13 - May 16)
Number of Fish Observed9697
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [9697]
Tailrace TDG Percent Exposure Index124.82 %
Percent of Fish Exposed [Number Exposed]100 % [9697]
Number of Days Fish Exposed4
Run Dates
First Day of RunApr 9
5% of Run passedMay 5
10% of Run passedMay 8
50% of Run passedMay 15
90% of Run passedMay 17
95% of Run passedMay 17
Last Day of RunMay 17
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 14, May 5, May 6