Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2021
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 Observed40453
Percent of Total Run Analyzed [Number Observed]100 % [40453]
Temperature Tailrace Exposure Index18.05 C
Percent of Fish Exposed [Number Exposed]95.4 % [38620]
Number of Days Fish Exposed134
Middle 80% of Run Period (Sep 6 - Oct 16)
Number of Fish Observed32630
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [32630]
Temperature Tailrace Exposure Index18.31 C
Percent of Fish Exposed [Number Exposed]100 % [32630]
Number of Days Fish Exposed41
Middle 50% of Run Period (Sep 14 - Oct 5)
Number of Fish Observed20807
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [20807]
Temperature Tailrace Exposure Index18.41 C
Percent of Fish Exposed [Number Exposed]100 % [20807]
Number of Days Fish Exposed22
Run Dates
First Day of RunApr 1
5% of Run passedAug 20
10% of Run passedSep 6
50% of Run passedSep 26
90% of Run passedOct 16
95% of Run passedOct 23
Last Day of RunOct 31
Date(s) When Temperature Tailrace Crosses 15 C
Jun 8, Oct 27