It is unlawful for any person to create, cause, maintain or knowingly allow to exist a public nuisance on any premises or real property which the person owns, rents, leases, occupies or has charge or possession of in unincorporated Ada County except property zoned in a rural area district as established by section 8-2-1 of this code. (Ord. 236, 5-2-1991, eff. 5-20-1991)