Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2021
ProjectIce Harbor
River ParameterTemperature Tailrace
Critical Temperature Tailrace Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 1 - Oct 31)
Total Number of Fish Observed38570
Percent of Total Run Analyzed [Number Observed]100 % [38570]
Temperature Tailrace Exposure Index18.84 C
Percent of Fish Exposed [Number Exposed]95.9 % [37014]
Number of Days Fish Exposed135
Middle 80% of Run Period (Sep 4 - Oct 15)
Number of Fish Observed31191
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [31191]
Temperature Tailrace Exposure Index19.08 C
Percent of Fish Exposed [Number Exposed]100 % [31191]
Number of Days Fish Exposed42
Middle 50% of Run Period (Sep 12 - Oct 3)
Number of Fish Observed19694
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [19694]
Temperature Tailrace Exposure Index19.16 C
Percent of Fish Exposed [Number Exposed]100 % [19694]
Number of Days Fish Exposed22
Run Dates
First Day of RunApr 1
5% of Run passedAug 27
10% of Run passedSep 4
50% of Run passedSep 23
90% of Run passedOct 15
95% of Run passedOct 22
Last Day of RunOct 31
Date(s) When Temperature Tailrace Crosses 15 C
Jun 9, Oct 27