According to City Ordinance 6.04.120: It shall be unlawful for the owner of any dog to let the dog run at large, whether licensed or not, at any time within the city.
The term "running at large" is defined to mean any dog that is not under the control of its owner, except that a dog shall not be considered under the control of its owner unless on a leash, cord or chain which is securely fastened or picketed in a manner sufficient to keep the dog on the premises where picketed, or on a leash, cord or chain of six (6) feet or less in length physically held by the owner, or confined within a receptacle, enclosed vehicle, fenced enclosure or shelter, or within the real property limits of the owner and in his or her presence and under his or her direct and effective voice control.
Failure to observe this ordinance means your dog may be impounded at the Humane Society and/or a citation issued.