WHS-08

What are Cooling System Audits?

AUST  Work Place Safety Assessors advise that the control measures in place throughout Australia have work health safety legislative backing, although the means of enactment vary from state to state for Cooling System Audits.

/ COMPLIANCE OBLIGATIONS
Cooling System Audits must be designed to ensure that:

  • The risk management plans (RMP) developed are up to date and have been reviewed
  • The RMP addresses the risks identified under the regulations in the cooling system audits, including those associated with:

a) Stagnant water, including the lack of water recirculation in a cooling tower system and the presence of dead-end pipework and other fittings in a cooling tower system;

b) Nutrient growth, including:

(i) presence of biofilm, algae and protozoa in a cooling tower system,
(ii) water temperature within a range that will support rapid growth of microorganisms in a cooling tower system; and
(iii) exposure of the water of a cooling tower system to direct sunlight.

c) Poor water quality, including the presence of solids, legionella and high levels of microorganisms in a cooling tower system

d) Deficiencies in a cooling tower system, including deficiencies in the physical design, condition and maintenance of the system

e) The location of, and access to, a cooling tower or cooling tower system, including the potential for environmental contamination of the system and the potential for exposure of people to the aerosols of the system.

  • Records and other relevant documentation are examined, to determine whether the specified risks have been addressed during Cooling System Audits
  • The statement of RMP review/s conducted, including the date/s of the review/s, who conducted it/them and any changes made to the RMP is satisfactory, and evidence compliance with regulations during cooling system audits
  • Service, inspection, cleaning and other maintenance reports are satisfactory and evidence maintenance performed as per regulation requirement
  • Microbiological and/or chemical test results obtained were acted on where needed, and outcomes were documented
  • Statements of any Cooling System shut down and periods involved, and evidence of risk mitigation action upon redevelopment are documented
  • Documentation of decommissioning of a cooling tower system if it has occurred, is satisfactory
  • Previous Cooling System Audits certificates are satisfactory of cooling tower system.

/ VALIDATION
Where necessary, Work Place Safety Assessors also assist building owners with the development or review and enhancement of the risk management plan to reflect the risks identified in the regulations (and cooling system audits) and the necessary steps taken to mitigate them.

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