Plumbing and Drainage Quick Links Application payment Track an application Dial before you Dig Queensland Urban Utilities QBCC - Plumbers licence Check Building Applications Checklist and information on how to lodge. Backflow Prevention Devices Associated information and fees. Forms and Fees Forms, fees, fact sheets and helpful links. Booking Inspections How to book and regulations. On-site Sewerage Facilities Information on servicing and approved systems. Regulated and Unregulated Work Work carried out by a licenced person. Track an application Check on the status of an application. Water supply Tank requirements for variety of areas.