Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2019
ProjectIce Harbor
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 (Jan 1 - Oct 31)
Total Number of Fish Observed31824
Percent of Total Run Analyzed [Number Observed]98.65 % [31397]1
Tailrace TDG Percent Exposure Index100.03 %
Percent of Fish Exposed [Number Exposed]0.9 % [299]
Number of Days Fish Exposed17
Middle 80% of Run Period (Aug 17 - Oct 21)
Number of Fish Observed25782
Percent of Middle 80% of Run Analyzed [Number Observed]98.34 % [25355]
Tailrace TDG Percent Exposure Index98.65 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 20 - Oct 10)
Number of Fish Observed16068
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [16068]
Tailrace TDG Percent Exposure Index97.58 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunJan 1
5% of Run passedJul 16
10% of Run passedAug 17
50% of Run passedSep 28
90% of Run passedOct 21
95% of Run passedOct 25
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 9, Apr 13, Apr 21, Apr 30, May 8, May 10, May 15, May 22, May 30, Jun 7

1. Total Run Analyzed [31397] is less than total observed during the period [31824]. Only fish observed on days with River Parameter data are analyzed.