Many factors affect the quality of the water in areas of a watershed and are often linked to the human
use of the area. In protected natural areas, the water tends to be cleaner and freer of chemical pollutants
and other contaminants. In agricultural and urban areas, water can be contaminated with substances
that affect the water's clarity, dissolved oxygen level, nitrate/nitrite levels, pH, and more.
In this lab, you will be investigating your local watershed. First you will use government data to research
features of the local area of the watershed near you, and then you will identify a source of water in your
watershed and test it at three different points.
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