No person shall wash any clothing or other material, or clean any fish, in a lake or stream, nor in any way pollute any stream or lake in a city park. [Ord. 914 Art. 2, § 13, 2016; Ord. 869 Art. 2, § 16, 2013; Ord. 860 Art. 2, § 16; Ord. 753; Ord. 744 Art. 2, § 15; Ord. 286 § 15.]