Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead 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 21 - May 1)
Total Number of Fish Observed1542
Percent of Total Run Analyzed [Number Observed]100 % [1542]
Tailrace TDG Percent Exposure Index120.93 %
Percent of Fish Exposed [Number Exposed]84.6 % [1306]
Number of Days Fish Exposed18
Middle 80% of Run Period (Apr 12 - Apr 30)
Number of Fish Observed1335
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [1335]
Tailrace TDG Percent Exposure Index121.6 %
Percent of Fish Exposed [Number Exposed]93.8 % [1253]
Number of Days Fish Exposed17
Middle 50% of Run Period (Apr 17 - Apr 27)
Number of Fish Observed780
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [780]
Tailrace TDG Percent Exposure Index121.37 %
Percent of Fish Exposed [Number Exposed]100 % [780]
Number of Days Fish Exposed11
Run Dates
First Day of RunMar 21
5% of Run passedApr 7
10% of Run passedApr 12
50% of Run passedApr 24
90% of Run passedApr 30
95% of Run passedApr 30
Last Day of RunMay 1
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 14