Which group is most concerned with outdoor recreational activities using water?

The group most concerned with outdoor recreational activities using water is classified as Special Users. This category encompasses individuals and organizations that prioritize specific uses of water, particularly for activities such as boating, fishing, swimming, and other recreational pursuits. These users are typically focused on maintaining and improving the availability and quality of water resources to support their recreational interests.

Special Users may advocate for better access to water bodies and engage in conservation efforts to ensure that outdoor recreational opportunities remain viable. They play a critical role in discussions about water policy and management, emphasizing the importance of balancing water use among competing interests.

In contrast, the other groups listed, such as Agricultural, Industrial, and Municipal, primarily focus on their specific needs related to water for farming, manufacturing, and public supply, respectively. While these groups may also recognize the value of water for recreational purposes, their primary concerns are centered around different aspects of water use, which distinguishes Special Users as the key group advocating for outdoor recreational activities.