Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2017
ProjectLower Monumental
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 (Apr 13 - Jun 15)
Total Number of Fish Observed29640
Percent of Total Run Analyzed [Number Observed]99.99 % [29639]1
Tailrace TDG Percent Exposure Index122.04 %
Percent of Fish Exposed [Number Exposed]97.3 % [28851]
Number of Days Fish Exposed61
Middle 80% of Run Period (May 18 - Jun 11)
Number of Fish Observed24295
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [24295]
Tailrace TDG Percent Exposure Index122.42 %
Percent of Fish Exposed [Number Exposed]100 % [24295]
Number of Days Fish Exposed25
Middle 50% of Run Period (May 24 - Jun 4)
Number of Fish Observed15685
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [15685]
Tailrace TDG Percent Exposure Index122.99 %
Percent of Fish Exposed [Number Exposed]100 % [15685]
Number of Days Fish Exposed12
Run Dates
First Day of RunApr 13
5% of Run passedMay 15
10% of Run passedMay 18
50% of Run passedMay 29
90% of Run passedJun 11
95% of Run passedJun 13
Last Day of RunJun 15
Date(s) When Tailrace TDG Percent Crosses 115 %
Jun 12, Jun 13

1. Total Run Analyzed [29639] is less than total observed during the period [29640]. Only fish observed on days with River Parameter data are analyzed.