Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2017
ProjectThe Dalles
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value115 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates3/15 - 6/15
Total Run Period (Mar 16 - Jun 15)
Total Number of Fish Observed74023
Percent of Total Run Analyzed [Number Observed]99.98 % [74015]1
Tailrace TDG Percent Exposure Index121.81 %
Percent of Fish Exposed [Number Exposed]99.8 % [73913]
Number of Days Fish Exposed78
Middle 80% of Run Period (May 9 - Jun 10)
Number of Fish Observed60821
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [60821]
Tailrace TDG Percent Exposure Index122.27 %
Percent of Fish Exposed [Number Exposed]100 % [60821]
Number of Days Fish Exposed33
Middle 50% of Run Period (May 17 - Jun 2)
Number of Fish Observed38983
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [38983]
Tailrace TDG Percent Exposure Index122.12 %
Percent of Fish Exposed [Number Exposed]100 % [38983]
Number of Days Fish Exposed17
Run Dates
First Day of RunMar 16
5% of Run passedMay 7
10% of Run passedMay 9
50% of Run passedMay 24
90% of Run passedJun 10
95% of Run passedJun 13
Last Day of RunJun 15
Date(s) When Tailrace TDG Percent Crosses 115 %
Apr 30, May 1

1. Total Run Analyzed [74015] is less than total observed during the period [74023]. Only fish observed on days with River Parameter data are analyzed.