Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2021
ProjectLittle Goose
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates3/15 - 6/15
Total Run Period (Mar 31 - Jun 15)
Total Number of Fish Observed28356
Percent of Total Run Analyzed [Number Observed]100 % [28356]
Tailrace TDG Percent Exposure Index119.35 %
Percent of Fish Exposed [Number Exposed]30.7 % [8721]
Number of Days Fish Exposed13
Middle 80% of Run Period (May 8 - Jun 7)
Number of Fish Observed23207
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [23207]
Tailrace TDG Percent Exposure Index119.52 %
Percent of Fish Exposed [Number Exposed]35.4 % [8224]
Number of Days Fish Exposed11
Middle 50% of Run Period (May 12 - May 26)
Number of Fish Observed14722
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [14722]
Tailrace TDG Percent Exposure Index119.44 %
Percent of Fish Exposed [Number Exposed]40.7 % [6006]
Number of Days Fish Exposed5
Run Dates
First Day of RunMar 31
5% of Run passedMay 5
10% of Run passedMay 8
50% of Run passedMay 18
90% of Run passedJun 7
95% of Run passedJun 12
Last Day of RunJun 15
Date(s) When Tailrace TDG Percent Crosses 120 %
May 2, May 4, May 16, May 21, Jun 2, Jun 8