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 - Jun 26)
Total Number of Fish Observed200
Percent of Total Run Analyzed [Number Observed]100 % [200]
Tailrace TDG Percent Exposure Index119.77 %
Percent of Fish Exposed [Number Exposed]50.5 % [101]
Number of Days Fish Exposed20
Middle 80% of Run Period (Apr 20 - Jun 3)
Number of Fish Observed163
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [163]
Tailrace TDG Percent Exposure Index120.01 %
Percent of Fish Exposed [Number Exposed]52.7 % [86]
Number of Days Fish Exposed12
Middle 50% of Run Period (Apr 28 - May 21)
Number of Fish Observed109
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [109]
Tailrace TDG Percent Exposure Index120.61 %
Percent of Fish Exposed [Number Exposed]77 % [84]
Number of Days Fish Exposed11
Run Dates
First Day of RunMar 21
5% of Run passedApr 17
10% of Run passedApr 20
50% of Run passedMay 17
90% of Run passedJun 3
95% of Run passedJun 9
Last Day of RunJun 26
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 16, Apr 18, Apr 27, May 1, May 13, May 21, May 30, Jun 1, Jun 4, Jun 6, Jun 9, Jun 12, Jun 13, Jun 14