Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
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 (Jan 3 - May 1)
Total Number of Fish Observed428
Percent of Total Run Analyzed [Number Observed]100 % [428]
Tailrace TDG Percent Exposure Index104.92 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Feb 3 - Apr 17)
Number of Fish Observed345
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [345]
Tailrace TDG Percent Exposure Index104.33 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Feb 9 - Apr 6)
Number of Fish Observed236
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [236]
Tailrace TDG Percent Exposure Index103.06 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunJan 3
5% of Run passedJan 31
10% of Run passedFeb 3
50% of Run passedFeb 21
90% of Run passedApr 17
95% of Run passedApr 22
Last Day of RunMay 1