Which of the following are actual designated uses for surface waters?

Drinking water supply is indeed a recognized designated use for surface waters. Designated uses are specific purposes for which bodies of water are managed and assessed. Drinking water supply refers to the use of surface water for human consumption, after appropriate treatment. This is critical for public health, ensuring access to safe and clean drinking water.

In contrast, industrial waste storage is typically not considered a designated use, as surface waters should be protected from pollutants to safeguard human and ecological health. Similarly, while agricultural source water is important, it often falls under broader classifications such as irrigation or agricultural uses rather than a designated use on its own in regulatory contexts. Cooling source water can be part of industrial uses but does not represent a standalone designated purpose for protecting and managing surface water quality. The distinction is crucial in resource management policies and regulatory frameworks that aim to protect water quality and availability for various human and ecological needs.