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System Complexity Rating
The System Complexity Rating shall be performed by the Drinking Water Supplier and reported where required to the relevant state/territory regulator using a risk-based framework agreed with that regulator.
The Drinking Water Supplier shall ensure that the rating remains current. Where a change in conditions occurs that would be reasonably expected to affect the resultant score, the System Complexity Rating must be resubmitted using the process agreed with the relevant state or territory regulator.
The Drinking Water Supplier shall forward the System Complexity Rating to the Certifying Body (WIOA).
The Certifying Body shall maintain records of the System Complexity Rating and resultant category in relation to its complexity.
Please refer to the Certification Framework for Operators within Drinking Water Treatment Systems 2016 for further information.
Will include drinking water systems where no treatment barriers are in place or where disinfection is the only treatment barrier. Fluoridation of water may occur at this level.
Skills required by Certified Operators will typically involve chemical dosing, sampling and/or reporting.
Will include drinking water systems that have two or more treatment barriers in place. Fluoridation may also occur.
Skills required by Certified Operators will typically involve monitoring, sampling, reporting, chemical dosing and control/optimisation of multiple conventional and/or advanced treatment processes.
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