Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2024
ProjectLower Monumental
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 21 - May 1)
Total Number of Fish Observed70
Percent of Total Run Analyzed [Number Observed]100 % [70]
Tailrace TDG Percent Exposure Index118.71 %
Percent of Fish Exposed [Number Exposed]35.7 % [25]
Number of Days Fish Exposed5
Middle 80% of Run Period (Apr 9 - Apr 30)
Number of Fish Observed58
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [58]
Tailrace TDG Percent Exposure Index119.24 %
Percent of Fish Exposed [Number Exposed]43.1 % [25]
Number of Days Fish Exposed5
Middle 50% of Run Period (Apr 19 - Apr 29)
Number of Fish Observed46
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [46]
Tailrace TDG Percent Exposure Index119.08 %
Percent of Fish Exposed [Number Exposed]36.9 % [17]
Number of Days Fish Exposed2
Run Dates
First Day of RunMar 21
5% of Run passedMar 31
10% of Run passedApr 9
50% of Run passedApr 24
90% of Run passedApr 30
95% of Run passedMay 1
Last Day of RunMay 1
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 16, Apr 18, Apr 27, May 1