Hypothesis
We are going to test Schweyer Run in two different places, one near
our county library and one near the run's mouth. In between these two test
spots, there is a
small section of town, mainly several houses. We assume that these
houses will leak small amounts of wastes into the run. This will probably
be shown in the test
results at the mouth.
We assume that the pH will decline from the first site to the second,
mainly due to the household waste that is usually acidic. We assume that
the dissolved oxygen
will be lower at the mouth because its water temperature will be higher.
The mouth is in an area with less trees and has more exposure to the sun.
Waste from the
homes may also be warmer than the run.