The test follows the steps below. D.O. is measured again. NPS pollution degrades water quality more than point source pollution in streams, rivers, and lakes. Others are construction sites, logging, and mining operations, and urban runoff. Runoff can contain many forms of chemicals and silt that harm streams, rivers, and lakes.
Some stormwater permits require the following parameters to be sampled and recorded.
This curiculum project was funded by the Colby Partnership for Science Education, the Howard Hughes Medical Institute,and the Bell AtlanticFoundation.