What is the purpose of controlling nutrients in a water source?

Controlling nutrients in a water source is primarily aimed at preventing algae growth. Nutrients, particularly phosphorus and nitrogen, are essential for the growth of algae. When these nutrients are present in excess, they can cause algal blooms, which can lead to a range of water quality issues. These blooms can deplete oxygen in the water, create toxins harmful to aquatic life and human health, and cause aesthetic problems that affect recreational uses of water bodies. By managing nutrient levels, water operators can help maintain a balanced ecosystem in the water source, ensuring safe, clean water for consumption and recreation while protecting aquatic habitats.

While other factors like water temperature, taste, and pH are important for overall water quality, they are not the primary focus in managing nutrient levels. Algae growth is directly linked to nutrient availability, making the prevention of excessive algae one of the most critical reasons for nutrient control in water sources.