No person shall deposit or leave any garbage, refuse, or other material of any kind on the park system grounds or waters. Paper, glass, cans, garbage, and other refuse of any kind resulting from picnics or other proper use of the park system shall be deposited only in receptacles provided for that purpose, and no person shall litter, suffer, or cause the park system to be littered in any way.
('79 Code, § 2002) Penalty, see § 98.99