Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2017
ProjectLower Monumental
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 Observed66499
Percent of Total Run Analyzed [Number Observed]99.95 % [66469]1
Tailrace TDG Percent Exposure Index99.18 %
Percent of Fish Exposed [Number Exposed]3.9 % [2615]
Number of Days Fish Exposed114
Middle 80% of Run Period (Sep 15 - Oct 15)
Number of Fish Observed53811
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [53811]
Tailrace TDG Percent Exposure Index97.87 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 23 - Oct 7)
Number of Fish Observed36310
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [36310]
Tailrace TDG Percent Exposure Index97.46 %
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 15
50% of Run passedSep 30
90% of Run passedOct 15
95% of Run passedOct 21
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 115 %
Jun 25, Jun 26, Jul 3, Jul 5, Jul 9, Jul 12, Aug 11, Aug 12, Aug 14, Aug 16, Aug 17

1. Total Run Analyzed [66469] is less than total observed during the period [66499]. Only fish observed on days with River Parameter data are analyzed.