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 - Dec 31)
Total Number of Fish Observed73352
Percent of Total Run Analyzed [Number Observed]100 % [73352]
Tailrace TDG Percent Exposure Index102.75 %
Percent of Fish Exposed [Number Exposed]0 % [30]
Number of Days Fish Exposed18
Middle 80% of Run Period (Aug 4 - Oct 12)
Number of Fish Observed58976
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [58976]
Tailrace TDG Percent Exposure Index101.8 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 6 - Sep 30)
Number of Fish Observed37797
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [37797]
Tailrace TDG Percent Exposure Index100.9 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 1
5% of Run passedJul 15
10% of Run passedAug 4
50% of Run passedSep 19
90% of Run passedOct 12
95% of Run passedOct 25
Last Day of RunDec 31
Date(s) When Tailrace TDG Percent Crosses 120 %
May 1, May 2, May 5, May 31, Jun 1, Jun 2