Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2024
ProjectMcNary
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 30 - Jun 30)
Total Number of Fish Observed1851
Percent of Total Run Analyzed [Number Observed]100 % [1851]
Tailrace TDG Percent Exposure Index117.17 %
Percent of Fish Exposed [Number Exposed]10.6 % [198]
Number of Days Fish Exposed24
Middle 80% of Run Period (Apr 15 - May 18)
Number of Fish Observed1488
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [1488]
Tailrace TDG Percent Exposure Index117.4 %
Percent of Fish Exposed [Number Exposed]5.9 % [88]
Number of Days Fish Exposed5
Middle 50% of Run Period (Apr 22 - May 8)
Number of Fish Observed980
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [980]
Tailrace TDG Percent Exposure Index117.11 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 30
5% of Run passedApr 8
10% of Run passedApr 15
50% of Run passedApr 28
90% of Run passedMay 18
95% of Run passedMay 26
Last Day of RunJun 30
Date(s) When Tailrace TDG Percent Crosses 120 %
May 14, May 25, May 30, Jun 2, Jun 4, Jun 15