It is a violation of the code to allow the storage or accumulation of solid waste on a property. If the trash is within 10 feet of the curb,  the Recycling and Resource Management Division will investigate.  See Section 26-9(a)(8) of Chapter 26, Housing and Building and Maintenance Standards on the attached link for the Code reference. 
To file a complaint regarding trash, litter, debris, solid waste on private property or commercial property, please see the topic entitled  "HOUSING COMPLAINTS"  or click on the second link below.