There is a potential health risk with any open water cooling system.  Bacteria can breed in the water of a cooling unit and, if the proper precautions aren't untaken and if untreated, may have hazardous consequences.

Legal requirements for water cooling systems may be found in the Public Health Act 1991, Public Health (Microbial Control) Regulation 2000 and the Australian Standards AS3666 Parts 1, 2 and 3.

Fact sheets are available on the following subjects:

• Cooling Towers;
• Legionnaires Disease and Cooling Towers Frequently Asked Questions; and
• Regulatory System Registration Form.

Topics covered by the legislation include the following:

• Does a new water cooling system need to be approved by Council?
• What if my water cooling system has already been constructed?
• Does my water cooling system have to be registered?
• What do I need to do once my water cooling system is in operation?
• Requirements for all water cooling systems;
• Additonal requirements for maintenance;
• Who can do the tests?
• Who can do the cleaning and monthly servicing?
• Who can do the annual certification?
• What if I don't comply?
• Who can I talk to if I have more questions?