At Crockett Park and Granny White Park, city of Brentwood Park & Rec Department workers may pick up items left at night that would be near the backstop / bathroom area of each quad and then take to their office at 1750 General George Patton Drive in Brentwood. You would go there to claim as needed.
At Civitan Park, for any items left, there is not an effort to pick any left items up. We generally just leave where left. Williamson County Park & Rec workers come by most weekdays in the morning to pick up trash and may sometimes pick up something and place in our lost & found bin. This is the light brown bin to the left of the concession stand window. While many items are left daily, there is not an effort to search throughout the park for items left.