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Notification of High Legionella Counts

Cooling water systems

If the owner of premises on which a cooling water system (i.e. cooling tower, evaporative condenser) is installed receives a report of the results of microbiological testing of water taken from the system indicating the presence of 1000 or more colony forming units of Legionella per millilitre of water, he or she must submit the report to the Local Council of the area within 24 hours of its receipt.

Maximum Penalty: $2000
Expiation Fee: $200

Warm water systems

If the owner of premises on which a warm water system is installed receives a report of the results of microbiological testing of water taken from the system indicating the presence of 10 or more colony forming units of Legionella per millilitre of water, he or she must submit the report to the Local Council of the area within 24 hours of its receipt.

Maximum Penalty: $2000
Expiation Fee: $200

How do I notify council of a high legionella count?

To notify Council of high Legionella counts with cooling water systems and/or warm water systems at your premise, the following measures can be taken:

  • Complete High Legionella Count Notification Form (DOC, 100KB) - the online form is currently unavailable.
  • Email .(JavaScript must be enabled to view this email address)
  • Phone our Customer Service Centre on 8203 7203

Power of authority to require immediate decontamination

If Council receives a report of the results of microbiological testing of water taken from a cooling water system or warm water system being high (1000cfu/ml and 10cfu/ml Legionella respectively), Council may by notice in writing given to the owner of the premise on which the system in installed, require the owner to immediately decontaminate the system in accordance with:

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