Answers inquiries from property owners, contractors, architects, local units of government, and others regarding code and ordinance interpretation, clarification of department policies and procedures, violation complaints, and general information; provides information and advice to owners, contractors, developers, engineers and architects regarding building code requirements and construction procedures and offers assistance in making applications for permits. Inspects residential, institutional, commercial, and industrial plumbing systems for conformance with the Cross Connection Control Ordinance and other laws and codes and approved plans and specifications, and provides contractors or owners with written Field Inspection Reports.