Leaf Pack Experiment Details at North Park Lake
Placement Information

Placement Date May 14, 2025
Number of Packs Placed 3
Placement Air Temperature 23.0 °C
Placement Water Temperature 18.0 °C
Stream Habitat Type Pool
Leaf Pack Type and Composition

Predominant Leaf Species:

Maple
Oak


Retrieval Information

Retrieval Date June 18, 2025
Number of Packs Retrieved 3
Retrieval Air Temperature 26.0 °C
Retrieval Water Temperature 21.0 °C
Storm and Non-Storm Events

Did storms occur while your leaf packs were in the stream? Yes
Number of storms that occurred 0
Total precipitation depth that occurred 0.0 cm
Did flooding occur? Yes
Was this site experiencing a drought during your experiment? No

Summary Analysis
Results Overview

Total Number of Individuals Found 23
Pollution Tolerance Index Score 20
Pollution Tolerance Index Rating Good - Some organic pollution
Percent EPT 34.78%




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