The Carol Stream Dolphins is a volunteer-based program for youth who want to join the world of competitive swimming. The Dolphins compete in the DuPage Swim & Dive Conference along with 12 other park district teams during the Summer season; the competition is from June through July.  The Dolphins also compete in the Northern Illinois Swim Conference along with 14 other park district teams. During the winter season, the competition is from October through mid-March.

The team is split up into two practice groups based on swimming ability. Blue Team swimmers must have a minimum of two years prior to competitive swim experience or approval from the Head Coach to join the Blue Team. White Team swimmers are new to competitive swimming or have less than two years of competitive experience. All swimmers are invited to participate in dual meets. Participation in Championship Meets are determined by times at the end of the dual meet season. Participants must be able to swim a minimum of 25 yards without stopping to compete in a swim meet.

Although the swim team is a Carol Stream Park District program, the team is run in large part through the help of parent volunteers. Parents are required to volunteer at swim meets. Parent volunteers are the only way to help keep the costs of the swim team as minimal as possible. The Dolphins appreciate all of their dedicated volunteers!