Leaf Pack Experiment Details at Mexico Middle school creek
Placement Information

Placement Date Sept. 14, 2020
Number of Packs Placed 70
Placement Air Temperature 17.0 °C
Placement Water Temperature 15.0 °C
Stream Habitat Type Riffle
Leaf Pack Type and Composition

Predominant Leaf Species:

Maple


Retrieval Information

Retrieval Date Oct. 9, 2020
Number of Packs Retrieved 65
Retrieval Air Temperature 15.0 °C
Retrieval Water Temperature 10.0 °C
Storm and Non-Storm Events

Did storms occur while your leaf packs were in the stream? Yes
Number of storms that occurred 1
Total precipitation depth that occurred 3.0 cm
Did flooding occur? No
Was this site experiencing a drought during your experiment? Yes

Summary Analysis
Results Overview

Total Number of Individuals Found 166
Pollution Tolerance Index Score 13
Pollution Tolerance Index Rating Fair - Substantial pollution likely
Percent EPT 0.60%




Comments

After placing the leaf packs we had a 2 week drought , then one or two rainstorms. We ran several tests- dissolved oxygen level was 5ppm Ph was 6.5 Phosphates and nitrates both zero.