The water quality of the U-High creek was excellent. Although, not all water quality is excellent due to pollution. One type of pollution is pesticides and fertilizer. When fertilizer and pesticides run off into a creek it causes algae to grow rapidly. Once the algae grows rapidly it can block the sunlight from being able to reach the bottom. Which will kill plants if they do not receive the sunlight. These algae also use up all the oxygen in the water which ends up killing most animals (River Water Quality and Pollution, 2015). Another way humans negetivally effect the water quality is by clearing the trees that are shading the water. If the trees get cut down, they can no longer provide shade to the water. When this happens the
