Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2018
ProjectJohn Day
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 (Mar 1 - Aug 13)
Total Number of Fish Observed7867
Percent of Total Run Analyzed [Number Observed]100 % [7867]
Tailrace TDG Percent Exposure Index113.92 %
Percent of Fish Exposed [Number Exposed]0.3 % [30]
Number of Days Fish Exposed18
Middle 80% of Run Period (Jun 24 - Jul 31)
Number of Fish Observed6319
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [6319]
Tailrace TDG Percent Exposure Index113.96 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Jul 7 - Jul 24)
Number of Fish Observed4138
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [4138]
Tailrace TDG Percent Exposure Index113.96 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 1
5% of Run passedJun 5
10% of Run passedJun 24
50% of Run passedJul 16
90% of Run passedJul 31
95% of Run passedAug 6
Last Day of RunAug 13
Date(s) When Tailrace TDG Percent Crosses 120 %
May 1, May 2, May 5, May 31, Jun 1, Jun 2