Leaf Pack Experiment Details at North Park Lake
Placement Information

Placement Date April 30, 2025
Number of Packs Placed 1
Placement Air Temperature 15.0 °C
Placement Water Temperature 15.0 °C
Stream Habitat Type Pool
Leaf Pack Type and Composition

Predominant Leaf Species:

Maple
Oak


Retrieval Information

Retrieval Date May 28, 2025
Number of Packs Retrieved 1
Retrieval Air Temperature 13.0 °C
Retrieval Water Temperature 19.0 °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 48
Pollution Tolerance Index Score 20
Pollution Tolerance Index Rating Good - Some organic pollution
Percent EPT 43.75%