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 31 - May 17)
Total Number of Fish Observed1482
Percent of Total Run Analyzed [Number Observed]100 % [1482]
Tailrace TDG Percent Exposure Index116.99 %
Percent of Fish Exposed [Number Exposed]2.2 % [33]
Number of Days Fish Exposed3
Middle 80% of Run Period (Apr 18 - May 10)
Number of Fish Observed1220
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [1220]
Tailrace TDG Percent Exposure Index117.12 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 22 - May 5)
Number of Fish Observed753
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [753]
Tailrace TDG Percent Exposure Index117.23 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 31
5% of Run passedApr 10
10% of Run passedApr 18
50% of Run passedApr 26
90% of Run passedMay 10
95% of Run passedMay 12
Last Day of RunMay 17
Date(s) When Tailrace TDG Percent Crosses 120 %
May 15