Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
ProjectLower Monumental
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 Observed96807
Percent of Total Run Analyzed [Number Observed]100 % [96807]
Temperature Tailrace Exposure Index18.74 C
Percent of Fish Exposed [Number Exposed]98.8 % [95692]
Number of Days Fish Exposed139
Middle 80% of Run Period (Sep 1 - Oct 14)
Number of Fish Observed77851
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [77851]
Temperature Tailrace Exposure Index18.88 C
Percent of Fish Exposed [Number Exposed]100 % [77851]
Number of Days Fish Exposed44
Middle 50% of Run Period (Sep 12 - Oct 3)
Number of Fish Observed50736
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [50736]
Temperature Tailrace Exposure Index18.92 C
Percent of Fish Exposed [Number Exposed]100 % [50736]
Number of Days Fish Exposed22
Run Dates
First Day of RunApr 1
5% of Run passedAug 4
10% of Run passedSep 1
50% of Run passedSep 24
90% of Run passedOct 14
95% of Run passedOct 21
Last Day of RunOct 31
Date(s) When Temperature Tailrace Crosses 15 C
Jun 13, Oct 30