Leaf Pack Experiment Details at North Park Lake
Placement Information

Placement Date May 14, 2025
Number of Packs Placed 1
Placement Air Temperature 22.0 °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 1
Retrieval Air Temperature 25.0 °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? Unknown

Summary Analysis
Results Overview

Total Number of Individuals Found 22
Pollution Tolerance Index Score 14
Pollution Tolerance Index Rating Fair - Substantial pollution likely
Percent EPT 9.09%