Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2017
ProjectJohn Day
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 Observed83253
Percent of Total Run Analyzed [Number Observed]100 % [83253]
Tailrace TDG Percent Exposure Index101.76 %
Percent of Fish Exposed [Number Exposed]1.6 % [1357]
Number of Days Fish Exposed79
Middle 80% of Run Period (Sep 2 - Oct 9)
Number of Fish Observed67187
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [67187]
Tailrace TDG Percent Exposure Index100.63 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 16 - Sep 29)
Number of Fish Observed43386
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [43386]
Tailrace TDG Percent Exposure Index100.48 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedAug 3
10% of Run passedSep 2
50% of Run passedSep 22
90% of Run passedOct 9
95% of Run passedOct 18
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 115 %
Jun 26, Jun 27, Jun 28, Jun 29, Jul 4, Jul 6, Jul 8, Oct 25, Oct 26