Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2024
ProjectLower Granite
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 (Mar 27 - Oct 8)
Total Number of Fish Observed6055
Percent of Total Run Analyzed [Number Observed]100 % [6055]
Tailrace TDG Percent Exposure Index120.22 %
Percent of Fish Exposed [Number Exposed]63 % [3817]
Number of Days Fish Exposed58
Middle 80% of Run Period (Apr 8 - Jun 3)
Number of Fish Observed4932
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [4932]
Tailrace TDG Percent Exposure Index121.3 %
Percent of Fish Exposed [Number Exposed]73 % [3605]
Number of Days Fish Exposed47
Middle 50% of Run Period (Apr 13 - May 14)
Number of Fish Observed3150
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3150]
Tailrace TDG Percent Exposure Index121.42 %
Percent of Fish Exposed [Number Exposed]88.6 % [2794]
Number of Days Fish Exposed30
Run Dates
First Day of RunMar 27
5% of Run passedApr 4
10% of Run passedApr 8
50% of Run passedApr 26
90% of Run passedJun 3
95% of Run passedJun 18
Last Day of RunOct 8
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 14, May 5, May 6, May 27, May 30, Jun 15