Water Act temporary diversion licences are issued for diversion of water (surface water and groundwater) for a maximum period of one year. Normally these are issued when there is a need for a short-term diversion and use of water for emergency water supply; for dust control and bridge washing; for drilling oil and gas wells (drilling fluid); and for other short-term uses except those exempted under schedules 3 and 4 of the Water (Ministerial) Regulation and the Water Act.
Proponents/clients use the Water Act temporary diversion licence electronic review system (WATERS) to apply for temporary diversion licences (TDLs). On receipt of an online TDL application, the information is summarized as a document and stored electronically, and a copy is e-mailed back to the client. A public notice of application is then prepared for posting to the AER website at the end of the business day. AER staff and decision-makers use WATERS to review and make decisions on TDL applications. The WATERS system handles the administrative functions of generating the required documents, storing them electronically, and sending results back to the client by e-mail.