Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2017
ProjectIce Harbor
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value115 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 1 - Oct 31)
Total Number of Fish Observed61961
Percent of Total Run Analyzed [Number Observed]99.93 % [61920]1
Tailrace TDG Percent Exposure Index99.77 %
Percent of Fish Exposed [Number Exposed]1.8 % [1148]
Number of Days Fish Exposed80
Middle 80% of Run Period (Sep 14 - Oct 13)
Number of Fish Observed49998
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [49998]
Tailrace TDG Percent Exposure Index98.7 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 22 - Oct 5)
Number of Fish Observed31322
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [31322]
Tailrace TDG Percent Exposure Index98.09 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedSep 1
10% of Run passedSep 14
50% of Run passedSep 28
90% of Run passedOct 13
95% of Run passedOct 20
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 115 %
Jun 29, Jun 30, Jul 3, Jul 5, Jul 6

1. Total Run Analyzed [61920] is less than total observed during the period [61961]. Only fish observed on days with River Parameter data are analyzed.