Leaf Pack Experiment Details at Roaring Fork River at Coffman Ranch
Placement Information

Placement Date March 18, 2025
Number of Packs Placed 3
Placement Air Temperature 6.0 °C
Placement Water Temperature 17.8 °C
Stream Habitat Type Riffle
Leaf Pack Type and Composition

Predominant Leaf Species:



Retrieval Information

Retrieval Date April 14, 2025
Number of Packs Retrieved 1
Retrieval Air Temperature 3.9 °C
Retrieval Water Temperature 10.6 °C
Storm and Non-Storm Events

Did storms occur while your leaf packs were in the stream? Unknown
Did flooding occur? Unknown
Was this site experiencing a drought during your experiment? Unknown

Summary Analysis
Results Overview

Total Number of Individuals Found 120
Pollution Tolerance Index Score 13
Pollution Tolerance Index Rating Fair - Substantial pollution likely
Percent EPT 80.00%